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Sashimi
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Sashimi (刺身; English: /səˈʃiːmi/ sə-SHEE-mee, Japanese: [saɕimiꜜ]) is a Japanese delicacy consisting of fresh raw fish or meat sliced into thin pieces and often eaten with soy sauce.[1]
Origin
[edit]
The word sashimi means 'pierced body', i.e., "刺身" = sashimi, where 刺 し = sashi (pierced, stuck) and 身 = mi (body, meat). This word dates from the Muromachi period (1336-1573)[citation needed] and there are multiple theories as to its etymology:
The term was possibly coined when the word "切る" = kiru (cut), the culinary step, was considered too inauspicious to be used by anyone other than a samurai. This word may derive from the culinary practice of sticking the fish's tail and fin to the slices for the purpose of identifying the fish being eaten.[citation needed]
Another possibility for the name is the traditional method of harvesting. "Sashimi-grade" fish is caught by individual handline. As soon as the fish is landed, its brain is pierced with a sharp spike, and it is placed in slurried ice. This spiking is called the ikejime process, and the instant death means that the fish's flesh contains a minimal amount of lactic acid. This means that the fish will keep fresh on ice for about ten days, without turning white or otherwise degrading.[citation needed]
Many non-Japanese use the terms sashimi and sushi interchangeably, but the two dishes are distinct and separate. Sushi refers to any dish made with vinegared rice. While raw fish is one traditional sushi ingredient, many sushi dishes contain seafood that has been cooked, and others have no seafood at all, including ingredients like seaweed, vegetables, omelets, and fried tofu.[2] Sashimi, by contrast, is always served on its own.[3] Although Japan has long had the custom of eating fish raw, the idea of serving it as a beautifully arranged dish is thought to have come from China, probably around the Kamakura period (1185–1333). An early cookbook in Japanese, written in 1489, directs that the raw flesh should be sliced and mixed with vinegar and seasonings such as salt and herbs.[4]
An early western description of sashimi comes from a letter written by the future Admiral of the Fleet, Sir Arthur Wilson of the Royal Navy, who was assigned to the British naval mission to Japan in the late 1860s: "It is a peculiar sort of fish, which they cut in very thin slices and serve up with some sort of sauce over it. It is considered a great delicacy. I have tried it and did not find it bad, but the idea is not nice."[5]
Serving
[edit]

Sashimi is often served early in a formal Japanese meal but it can also be served in a sashimi set meal, presented with rice and miso soup in separate bowls. Japanese chefs consider sashimi the finest dish in Japanese formal dining and recommend that it be eaten before other strong flavors affect the palate.[6]
The sliced seafood that composes the main ingredient is typically draped over a garnish. The typical garnish is Asian white radish, daikon, shredded into long thin strands, or single leaves of the herb shiso (perilla).[6] Garnishes for sashimi are generally called tsuma and may also include slices of other raw vegetables, such as cucumbers and carrots, as well as seaweeds, flowers and leaves and stems of other plants.[4]
Sashimi is popularly served with a dipping sauce (soy sauce) and condiments such as wasabi paste, grated fresh ginger,[6] gari or pickled ginger,[2][7] grated fresh garlic, or ponzu for meat sashimi, and such garnishes as shiso and shredded daikon radish. Wasabi paste is sometimes mixed directly into soy sauce as a dipping sauce, which is generally not done when eating sushi (which itself normally includes wasabi). A reputed motivation for serving wasabi with sashimi and also gari, besides its flavor, is killing harmful bacteria and parasites that could be present in raw seafood.[8]
Preparation
[edit]To highlight the delicate flavor as well as for texture, the chef cuts fish into different thicknesses by variety of the fish, its age and by the season.[9][10][11] The hira-zukuri cut (literally 'flat slice'), is the standard cut for most sashimi. Typically this style of cut is the size of a domino and 10 mm (3⁄8 in) thick. Tuna, salmon, and kingfish are most commonly cut in this style. The usu-zukuri cut (literally 'thin slice'), is an extremely thin, diagonally cut slice that is mostly used to cut firm fish, such as bream, whiting, and flounder. The dimensions of this cut are usually 50 mm (2 in) long and 2 mm (1⁄16 in) wide. The kaku-zukuri cut (literally 'square slice'), is the style in which sashimi is cut into small cubes that are 20 mm (3⁄4 in) on each side. The ito-zukuri cut (literally 'thread slice'), is the style in which the fish is cut into fine strips, less than 2 mm (1⁄16 in) in diameter. The fish typically cut with the ito-zukuri style include garfish and squid;[12][13] squid dish prepared in ito-zukuri is also called ika sōmen and is dipped in dashi or men-tsuyu like eating sōmen noodle.[9]
Varieties
[edit]
Popular main ingredients for sashimi include:
- Salmon (鮭, Sake)
- Squid (いか, Ika)
- Shrimp (えび, Ebi)
- Tuna (マグロ, Maguro)
- Mackerel (さば, Saba)
- Horse mackerel (あじ, Aji)
- Octopus (たこ, Tako)
- Fatty tuna (おおとろ, Ōtoro)
- Yellowtail (はまち, Hamachi)
- Scallop (ほたて貝, Hotate-gai)
- Sea urchin (ウニ, Uni)
Some sashimi ingredients, such as octopus, are sometimes served cooked given their chewy nature. Most seafood, such as tuna, salmon, and squid, are served raw. Tataki (たたき or 叩き, 'pounded') is a type of sashimi that is quickly and lightly seared on the outside, leaving it raw inside.[14]
Ingredients other than raw fish meat
[edit]Food cut into small pieces and eaten with wasabi and soy sauce may be called sashimi in Japan, including the following ingredients. Like bamboo shoots, the food is enjoyed raw to appreciate the freshness, and producers and farmers offer those sashimi at their properties in top season. Some of the vegetables are enjoyed as thin sliced strips and called sashimi while they resemble fish meat, like avocado as salmon and konnyaku as puffer fish.
Less common, but not unusual, sashimi ingredients are vegetarian items, such as yuba (bean curd skin), and raw red meats, such as beef (known as gyuunotataki) or horse (known as basashi).[15] Chicken "sashimi" (known as toriwasa) is considered by some [who?] to be a delicacy; the Nagoya kōchin, French poulet de Bresse and its American derivative, the blue foot chicken, are favored by many for this purpose, as, besides their taste, they are certified to be free of Salmonella.[citation needed] Chicken sashimi is sometimes slightly braised or seared on the outside.[16]
- Vegetable
- Avocado: served as "avocado sashimi", it is considered to have a texture similar to raw or slightly salted fatty salmon. It is eaten with wasabi soy sauce.
- Bamboo shoots: Bamboo grove famers serve takenoko in course menu, and sashimi is almost always sold during the high season of harvest.[17][18]
- Japanese radish: among many varieties of vegetables eaten fresh, it is said that the flavor stands out when tasted within a couple of hours after harvesting, and called sashimi vegetables instead of very fresh salad.[19]
- Konnyaku: cut into short thin strips resembling puffer fish meat, thus called yama fugu (mountain puffer fish) in some regions. Served with vinegar and miso, wasabi and soy sauce, vinegar and soy sauce.
- Yuba, or tofu skin: while there are restaurants where customers cook their own yuba and eat while it is hot, yuba-sashi or sashimi of yuba is chilled and served with wasabi soy sauce or vinegar miso.[20]
- Meat
Beef, pork, and poultry are bought from licensed butchers and processors and served raw or slightly cooked to avoid high risk of food poisoning and parasite infection. Meat may be treated in boiling water (yubiki) or braised with a gas torch (aburi). Served with ponzu citrus vinegar.
- Chicken meat (toriwasa) is thinly sliced Nagoya kōchin flesh, liver, heart and gizzard.
- Chiragaa: boiled face skin of pork,[21][22] served with vinegar and miso sauce, also served as Okinawa cuisine.
- Goat meat: Okinawa cuisine, served with soy sauce and grated ginger.[23]
- Horse meat: offered with grated garlic and soy sauce.
- Mimigaa: boiled ears of pork, also served as Okinawa cuisine.[24]
- Offal: advised to buy from meat processors or restaurants with licenses, as fatal food poisoning happened in Japan with beef liver.[a][b]
- Wild meat: boar as Okinawa cuisine consumed on Iriomote and Ishigaki islands and boiled meat is served. Deer meat.
- Others
- Fishcake: An item in the express menu of Izakaya, offered as Itawasa. Sliced into 1 centimetre (0.39 in) thick strips, and eaten with wasabi and soy sauce.
- Seaweed: wakame is in strict sense not eaten raw but dipped in boiling water for a few seconds, and enjoyed with wasabi soy sauce. Marinating with vinegar and miso sauce is popular as well.
-
Goat meat served raw as sashimi
-
Thinly sliced "mimigā" (near) and "chiragā" (far)
-
A plate of dolphin sashimi
-
A plate of horse sashimi (basashi)
-
Beef sashimi
-
Chicken sashimi served lightly braised as tataki
-
Beef liver sashimi served with sesame seed oil and salt[a]
Safety
[edit]As a raw food, consuming sashimi can result in foodborne illness when bacteria or parasites are present; for example, anisakiasis is a disease caused by the accidental ingestion of larval nematodes in the family Anisakidae, primarily Anisakis simplex but also Pseudoterranova decipiens.[29] In addition, incorrectly prepared fugu fish may contain tetrodotoxin, a potent neurotoxin.
Another type of foodborne illness that could occur after consuming tainted sashimi is diphyllobothriasis. This disease is an infection within the intestines that occurs when the tapeworm Diphyllobothrium latum is consumed. Common fish such as trout, salmon, pike, and sea bass harbor this parasitic larva in their muscles. Since the innovation of the chilled transport system paired with the salmon and trout consumption, an increasing number of cases have been recorded annually in northern Japan due to the spread of this disease.[30]
Traditionally, fish that spend at least part of their lives in brackish or fresh water were considered unsuitable for sashimi because of the possibility of parasites. For example, salmon, an anadromous fish, is not traditionally eaten straight out of the river.[citation needed] A study in Seattle, Washington, showed that all wild salmon had roundworm larvae capable of infecting people, while farm-raised salmon did not have any roundworm larvae.[31] However, a study commissioned by the Pew Foundation found that total organic contaminants were consistently and significantly more concentrated in the farmed salmon as a group than in wild salmon.[32]
Freezing is often used to kill parasites. According to a European Union regulation,[33] freezing fish at −20 °C (−4 °F) for 24 hours kills parasites.[35] The U.S. Food and Drug Administration (FDA) recommends freezing at −35 °C (−31 °F) for 15 hours, or at −20 °C (−4 °F) for 7 days.[36]
While Canada does not federally regulate freezing fish, British Columbia[37] and Alberta[38] voluntarily adhere to guidelines similar to the FDA's.[39] Ontario attempted to legislate freezing as part of raw food handling requirements, though this was soon withdrawn due to protests by the industry that the subtle flavors and texture of raw fish would be destroyed by freezing. Instead, Ontario has decided to consider regulations on how raw fish must be handled prior to serving.[40]
Some fish for sashimi are treated with carbon monoxide to keep the flesh red for a longer time in storage. This practice can make spoiled fish appear fresh.[41][42]
Eating chicken sashimi is a serious food poisoning risk. Despite it being on menus, it is hard to find, and many chefs cook it incorrectly. Chicken sashimi is also often sourced at certain restaurants from the thigh, liver and outer breast.[16]
Environmental concerns
[edit]With the constant amount of fishing, bluefin tuna population rates have been steadily declining. A proposed solution has been farming bluefin tuna in fisheries. Historically, this has posed a problem in that the captive fish are not raised from spawn, but rather from small wild fish that are netted and transported to the farms, mostly in the Mediterranean.[43] However, Japanese scientists have found a way to successfully breed and raise the fish entirely in captivity.[44]
See also
[edit]Notes
[edit]- ^ a b Japanese regulation has banned providing or selling raw beef liver for sashimi at restaurants or stores, due to the risk of Hepatitis E and Enterohemorrhagic Escherichia coli, since July 2012.[28]
- ^ With cases reported in 2012, Ministry of Health, Labour and Welfare banned beef liver to be served as sashimi after 12 cases of food poisoning was reported.[25][26] The regulation was tightened in 2015 and pork liver was added to banned offal.[27]
References
[edit]- ^ "sashimi Meaning in the Cambridge English Dictionary". dictionary.cambridge.org. Archived from the original on 20 August 2018. Retrieved 20 August 2018.
- ^ a b Phillips, Hedy (18 February 2022). "What Is Sashimi, Exactly?". Reader's Digest. Retrieved 4 December 2022.
- ^ "What is the difference between Sushi vs Sashimi". Pogogi. 20 February 2014. Retrieved 17 May 2019.
- ^ a b Gordenker, Alice (20 November 2022). "Your Informed Guide to Sashimi Garnishes: What are they and should you eat them?". Retrieved 27 November 2022.
- ^ Bradford, Sir Edward Eden (1923). Life of Admiral of the Fleet Sir Arthur Knyvet Wilson, Bart., V.C., G.C.B., O.M., G.C.V.O. J. Murray. p. 26.
- ^ a b c Tsuji, Shizuo; Fisher, M.F.K.; Reichi, Ruth (17 February 2007). Japanese Cooking: A Simple Art (25th Anniversary ed.). Kodansha USA. pp. 158–60. ISBN 978-4-7700-3049-8.
- ^ "Wasabi". Japan Deluxe Tours. Retrieved 30 May 2017.
- ^ "Sushi Items – Wasabi". The Sushi FAQ. Archived from the original on 6 August 2011. Retrieved 12 July 2011.
- ^ a b Ōta, Tadamichi (2008). Kentei washoku chōri no hōchō gijutsu: shoshinsha kara ryōrinin made gijutsu ga kanzen ni mi ni tsuku ! [Certified Japanese cooking technology for using kitchen knives: From beginners to cooks, skills are fully acquired!] (in Japanese). Tōkyō: Asahiya shuppan. ISBN 9784751107690. OCLC 23313847.
- ^ Ōta, Tadamichi (2013). Shin★sashimi ryori no chori to enshutsu: ninki wo yobu sashimi-zukuri no gijutsu kokai [New Sashimi dish cooking and presentation: Technical know-how revealed on preparing popular sashimi dishes]. Asahiya Shuppan MOOK (in Japanese). Asahiya Shuppan. ISBN 9784751110256. OCLC 842834700.NCID BB13254487
- ^ Ōta, T. (2018). Shinka suru sashimi ryori: miryoku wo takameru sashimi no ryori-zukuri to chori gijutsu [Evolving sashimi cuisine: Sashimi cooking and decoration techniques to better appeal] (in Japanese). Asahiya Shuppan. ISBN 9784751113127. OCLC 1021860782.NCID BB25638919
- ^ "How to prepare sashimi". Good Food. 10 November 2014. Archived from the original on 6 April 2016. Retrieved 12 April 2016.
- ^ Detrick, Mia (1981). Sushi. Chronicle Books. ISBN 978-0-87701-238-2. Retrieved 12 April 2016.
- ^ "Nigiri vs. Sashimi: What is the difference between Nigiri and Sashimi?". 29 November 2020. Retrieved 15 April 2021.
- ^ Mouritsen, O.G. (2009). Sushi: Food for the Eye, the Body and the Soul. Springer. p. 296. ISBN 978-1-4419-0618-2. Retrieved 13 May 2019.
basashi – sashimi made from raw horse (uma).
- ^ a b Kramer, Jillian (24 January 2017). "Is It Safe To Eat Chicken Sashimi?". Food & Wine. Retrieved 17 May 2019.
- ^ Muroi, Hiroshi (July 1983). "Takenoko no sashimi". Fuji Take-rui Shokubutsuen Hokoku: The Reports of the Fuji Bamboo Garden (in Japanese) (27). Gotemba, Shizuoka: Nihon takesasa no kai: 95–98. ISSN 0287-3494. OCLC 5178838299.
- ^ Ikenami, Shotaro (June 1989). "Kenyaku shobai hocho-gonomi: takenoko no sashimi hoka 4-ten". Shōsetsu Shinchō (in Japanese). 43 (7(541)). Shinchosha: 142–145. doi:10.11501/6075166.
- ^ "kigyo to ningen: shun no yasai no sashimi wo shokutaku e no fudo sabisu-bin — Mitsui shokuhin gokyo kabushikigaisha to Iwata Sekio-shi" [Industry and individuals: Food service that flights fresh vegetables sashimi onto your dining table — Mitsui Food Industries, Ltd. and Sekio Iwata]. Shokuhin No Hoso (in Japanese). 29 (2). Nagoya: Hoso shokuhin gijutu kyokai: 3–5. March 1998. ISSN 0285-4449.
- ^ 新潮社 (June 1991). "(G)Kyoto-hen: fumi yutakana "Yubani" no namayuba sashimi" [Kyoto edition: Raw Yuba sashimi at "Yuba ni", rich in flavor]. Shukan Shincho (in Japanese). 36 (22). Shinchosha: 33. doi:10.11501/3378682. ISSN 0488-7484.
- ^ "Chiragaa". Digital Daijisen plus.
- ^ Okinawa/Amami Slow Food Society, ed. (October 2004). Okinawa suro fudo okoku: karada to kokoro ni hibikiau, furusato okinawa no aji magajin [Okinawa Slow Food Kingdom: Taste magazine of oldness and Okinawa that resonates with body and mind] (in Japanese). Tokyo: Ei Shuppan. p. 29. ISBN 4-7779-0171-8.
- ^ Tokai seikatsu kenkyu purojekuto Okinawa chimu, ed. (2009). Okinawa ruru: riaru okinawa-jin ni narutame no 49 no ruru [Okinawan Rules: 49 rules that you should master before becoming a real Okinawan]. Chukei shuppan / KADOKAWA.
- ^ Okinawa/Amami 2004, p. 29.
- ^ "Nenkan wazuka 12-rei no shokuchudoku wo nakusutame, shomin no tanoshimi wa ubawareta: "Rebasashi" wo kinshi shita Korosho no oobaka kisei" [part 13: The pleasure of the common people was taken away to eliminate only 12 cases of food poisoning a year: ban on beef liver sashimi, an absurd measure by the Ministry of Health, Labour and Welfare]. Shukan Posuto. Honshi "Shiroari kujotai" ga iku (in Japanese). 44 (20(2180)). Shogakukan: 47–49. 18 May 2012.
- ^ Taniguchi, Natsuko (2013). Sayonara rebasashi: Kinshi made no yonhyaku-sanjūhachi-nichikan [Goodbye, liver sashimi: 438 days to ban]. BAMBOO ESSAY SELECTION. Tokyo: Takeshobō. ISBN 9784812495933. OCLC 853442433.
- ^ "Buta no nama rebā: Teikyō kinshi Kōrōshō, raigetsu chūjun kara" [Raw pork lever: Ministry of Labor Bans, starting middle next month]. Mainichi Shinbun (in Japanese). 27 May 2015.
- ^ "Japanese regulation document". Archived from the original on 24 July 2015.
- ^ "BBB – Anisakis simplex and related". Fda.gov. 2 February 2009. Archived from the original on 25 June 2011. Retrieved 12 July 2011.
- ^ Nawa, Yukifumi; Hatz, Christoph; Blum, Johannes (2005). "Sushi Delights and Parasites: The Risk of Fishborne and Foodborne Parasitic Zoonoses in Asia" (PDF). Clinical Infectious Diseases. 41 (9): 1297–1303. doi:10.1086/496920. PMID 16206105.
- ^ Deardorff, T.L.; Kent, M.L. (1 July 1989). "Prevalence of larval Anisakis simplex in pen-reared and wild-caught salmon (Salmonidae) from Puget Sound, Washington". Journal of Wildlife Diseases. 25 (3): 416–419. doi:10.7589/0090-3558-25.3.416. PMID 2761015. S2CID 41817356.
- ^ Hites, R.A. (9 January 2004). "Global Assessment of Organic Contaminants in Farmed Salmon". Science. 303 (5655): 226–229. Bibcode:2004Sci...303..226H. CiteSeerX 10.1.1.319.8375. doi:10.1126/science.1091447. PMID 14716013. S2CID 24058620.
- ^ Regulation (EC) No 853/2004 of the European Parliament and of the Council of 29 April 2004 laying down specific hygiene rules for food of animal origin
- ^ Commission Regulation (EC) No 1020/2008 of 17 October 2008 amending Annexes II and III to Regulation (EC) No 853/2004 of the European Parliament and of the Council laying down specific hygiene rules for food of animal origin and Regulation (EC) No 2076/2005 as regards identification marking, raw milk and dairy products, eggs and egg products and certain fishery products
- ^ The requirement for frozen products was removed from Regulation (EC) No 853/2004 through an amendment made by Commission Regulation (EU) No 1020/2008.[34] This amendment, adopted on 17 October 2008, modified certain provisions of the original regulation, including the rules concerning the freezing of products of animal origin. One of the key changes in this amendment was related to the removal of the blanket requirement for freezing certain products (like fishery products) before processing or distribution, allowing more flexibility for businesses in handling, storage, and distribution under certain conditions. This change was part of a broader effort to simplify the hygiene rules applicable to food businesses while maintaining food safety standards.
- ^ Chapter 5: Parasites Archived 28 March 2014 at the Wayback Machine Fish and Fishery Products Hazards and Controls Guidance – Fourth Edition
- ^ "Illness-Causing Fish Parasites (Worms)" (PDF). BC Centre for Disease Control. July 2008. Archived from the original (PDF) on 6 July 2011. Retrieved 27 April 2010.
- ^ "Sushi Sashimi Policy" (PDF). Calgary Health Region. 1 February 2007. Archived (PDF) from the original on 5 February 2011. Retrieved 27 April 2010.
- ^ "Farm Direct Marketing: Know the Regulations - General Legislation" (PDF). Open Government Alberta. 2014. Archived (PDF) from the original on 29 May 2019.
- ^ [1] Archived 2 February 2010 at the Wayback Machine
- ^ "What Color Is Your Tuna? Washington Post Wednesday, October 27, 2004". The Washington Post. 27 October 2004. Archived from the original on 1 April 2012. Retrieved 12 July 2011.
- ^ Moskin, Julia (6 October 2004). "Tuna's Red Glare? It Could Be Carbon Monoxide". The New York Times. Archived from the original on 17 February 2013. Retrieved 12 July 2011.
- ^ "The Bluefin Slaughter". The Opinion Pages/Editorial. The New York Times. 17 November 2007. p. A18. Archived from the original on 5 June 2015. Retrieved 12 July 2011.
- ^ "Japanese scientists breed first captive bluefin tuna in fight for sustainable fisheries". North Asia. ABC News. 7 April 2015. Archived from the original on 2 June 2016. Retrieved 28 May 2016.
External links
[edit]- Gordenker, Alice (28 November 2015). "Why Do We Need a Little Bit on the Side?". So What the Heck Is That (column). Japan Times. On the garnishes for sashimi.
Sashimi
View on GrokipediaSashimi (刺身) is a traditional Japanese dish consisting of thinly sliced raw seafood or, less commonly, meat such as beef or horse, served without rice and typically accompanied by soy sauce, wasabi paste, and pickled ginger to enhance flavors and mitigate potential microbial risks.[1][2] The name derives from the Japanese words sashi ("to pierce" or "stab") and mi ("flesh" or "body"), alluding to the historical practice of inserting fish into boiled rice for fermentation before evolving to emphasize fresh, precise cuts with specialized knives.[2][3] Preparation prioritizes ultra-fresh, sashimi-grade ingredients sourced from saltwater species to minimize parasite prevalence, with fish often humanely dispatched via ikejime—a spiking technique through the brain to halt neural activity and preserve muscle integrity—followed by immediate gutting, bleeding, and chilling on ice.[4] Slices vary by fish type: rectangular for firm-textured tuna (maguro), angled for flounder (hirame), or gossamer-thin for delicate octopus (tako), all aimed at balancing texture, visual appeal, and subtle natural tastes without cooking.[5] Common seafood includes fatty tuna (otoro), salmon (sake), yellowtail (hamachi), and squid (ika), while non-seafood variants like horse sashimi (basashi) or lightly seared beef (yukke) appear in regional cuisines, though they carry higher bacterial contamination risks absent rigorous sourcing.[6] Originating as a Heian-period (794–1185) garnish of fermented or salted fish for nobility, sashimi gained prominence in the Edo period (1603–1868) amid urban seafood abundance and refined knife techniques, symbolizing culinary artistry and the causal link between harvest immediacy and flavor purity.[7][8] Despite empirical benefits like retained omega-3 fatty acids, consumption demands caution due to anisakis parasites and heavy metals, with Japanese regulatory standards and wasabi's antimicrobial properties reducing but not eliminating hazards.[1]
Etymology and Definition
Etymology
The term sashimi (刺身) originates from Japanese, combining sashi (刺し), meaning "to pierce" or "pierced," with mi (身), meaning "body," "flesh," or "meat," yielding a literal translation of "pierced body" or "pierced meat."[3][2] This etymology reflects an early preparation technique in which freshly caught fish were killed by piercing the brain to prevent muscle contraction and strung on bamboo skewers or sticks to stiffen the flesh, enabling thin slicing without degradation.[9] The word entered English usage around 1880, coinciding with growing Western exposure to Japanese cuisine during the Meiji era.[3] While raw fish consumption in Japan dates to at least the 12th century, the specific term sashimi emerged later, supplanting earlier designations like namasu for vinegar-marinated raw fish preparations.[10]Definition and Core Characteristics
Sashimi is a Japanese dish consisting of thinly sliced raw seafood, most commonly fish such as tuna, salmon, or yellowtail, presented without rice or additional cooking to highlight the ingredient's inherent freshness and texture.[11][1] The preparation prioritizes premium-quality seafood deemed safe for raw consumption, often labeled as "sashimi-grade," which involves sourcing from waters with low parasite risk or applying freezing protocols—such as -20°C for seven days—to eliminate potential pathogens like anisakid nematodes. This ensures minimal risk of foodborne illness while preserving the delicate flavor profile, with slices typically cut to 0.5–1 cm thickness for optimal mouthfeel.[12] Core characteristics include an unadorned presentation that accentuates visual appeal, such as the translucency and marbling of the flesh, often arranged artistically on chilled platters with garnishes like daikon radish shreds or shiso leaves to maintain coolness and cleanse the palate.[13] Unlike sushi, which incorporates vinegared rice, sashimi focuses solely on the protein, dipped in soy sauce and paired with wasabi for pungency and grated ginger to counter any perceived fishiness.[14] While traditionally seafood-centric, the form extends to select meats like beef or horse in regional variations, but authenticity demands rigorous hygiene, including immediate icing post-harvest and precise knife work to avoid bruising the tissue.[1] Sensory qualities—firm yet supple texture, mild oceanic aroma, and clean taste without bitterness—define superior examples, verifiable through professional grading standards emphasizing post-mortem handling within hours of capture.[15]Historical Development
Ancient and Pre-Modern Origins
The practice of consuming raw fish in Japan traces back to prehistoric eras, with archaeological findings from the Jōmon period (c. 14,000–300 BCE) indicating that coastal hunter-gatherer societies relied on fresh seafood caught via hooks and nets, often eaten uncooked due to the absence of advanced preservation or cooking methods.[16] This rudimentary raw consumption persisted into the Yayoi period (c. 300 BCE–300 CE), where rice cultivation and metal tools facilitated more reliable fishing, but evidence remains indirect, derived from shell middens and tools rather than explicit dietary records.[16] Documented culinary appreciation for raw fish emerged during the Heian period (794–1185 CE), when courtly texts describe its inclusion in elite meals, typically as simply prepared slices to highlight freshness amid seasonal abundance from nearby seas.[17] A precursor dish, namasu—thinly sliced raw fish or meat dressed with vinegar and seasonings—gained traction by this time, influenced by Chinese practices of raw fish preparation (huo or similar), serving as an early form of preservation and flavor enhancement without fermentation.[16] These methods addressed spoilage risks in humid climates lacking ice or refrigeration, though consumption was limited to the upper classes with access to pristine catches. By the Muromachi period (1336–1573 CE), raw seafood consumption evolved among aristocrats and samurai, who valued uncookked preparations for their purity and texture, with slicing techniques (kiri) becoming a refined skill to ensure safety and presentation.[10] The term "sashimi" first appears in records around 1448 CE, denoting pierced or stuck flesh—originally referring to raw meat or fish impaled on sticks for dipping—marking a shift toward deliberate, unadorned tasting without heavy pickling.[18] This era's practices emphasized wild-harvested wasabi and soy derivatives as accompaniments to counter potential parasites, reflecting empirical adaptations to local biology rather than imported ideals.[10]Edo Period Innovations
During the Edo period (1603–1868), rapid urbanization in Edo (modern Tokyo) and proximity to Tokyo Bay fostered innovations in sashimi preparation, transforming it from occasional elite fare into an accessible delicacy for commoners, enabled by reliable access to ultra-fresh seafood known as Edomae. Shoals of fish, particularly bonito (katsuo), were caught near the bay's mouth and transported inland via specialized oshokuri-bune vessels covering 70 kilometers in approximately 10 hours, rowed by relays of over seven fishermen using seven sculls per boat; upon arrival, fish were preserved by immersion in wells maintaining temperatures below 15°C to retard spoilage.[10] This supply chain, culminating at the Nihonbashi fish market where boteburi retailers hawked portions via shoulder poles, ensured fish reached consumers within hours, minimizing the need for prior fermentation or heavy curing prevalent in inland regions like Kyoto.[10][19] Key technical advancements centered on Edomae shigoto, a suite of handling methods applied to freshly landed fish to optimize texture and flavor retention during short-term storage, including salting, light pressing, and selective gutting to prevent oxidation while preserving raw integrity.[20] Specialized slicing tools emerged, notably the yanagiba (willow-leaf blade), a long, slender single-bevel knife developed in the Kansai region during this era specifically for sashimi; its 210–360 mm blade facilitated single-stroke pulls (hiki-kiri) yielding thin, uniform slices without tearing delicate flesh, enhancing visual appeal and mouthfeel in presentations like hira-zukuri (flat cuts).[21][22] These techniques prioritized the fish's natural umami, diverging from earlier marination-heavy approaches by leveraging freshness to serve truly raw cuts.[19] Complementary innovations included the mid-period mass production of koikuchi shoyu (dark soy sauce) in Noda, near Edo, which tempered any residual fishiness and amplified savory notes when used as a dipping sauce, often paired with grated condiments like mustard for bonito to balance oils—supplanting wasabi in some regional preferences.[10][19] Such developments elevated sashimi's status, integrating it into urban street culture and kaiseki-inspired meals, where emphasis on precise cuts underscored Shinto-derived purity in unaltered ingredients.[23] By the late Edo era, these practices had standardized sashimi as a standalone dish, distinct from vinegared rice accompaniments like emerging nigiri.[10]Post-War Globalization and Modern Adaptations
Following World War II, Japan's economic recovery and urbanization spurred the proliferation of izakaya and high-end restaurants where sashimi featured prominently as a premium offering, distinct from more casual sushi formats. Advancements in cold-chain logistics and air freight by the 1960s enabled the export of fresh seafood, transforming sashimi from a localized delicacy into a component of global Japanese cuisine. In the United States, early adoption occurred in Japanese-American enclaves like Los Angeles' Little Tokyo, with raw fish dishes appearing on menus by the late 1940s, though widespread appeal lagged until the 1970s amid shifting cultural attitudes and improved parasite controls through freezing.[24][25] The 1980s marked a pivotal globalization phase, as economic booms in Japan and the West fueled demand for authentic experiences, with sashimi platters becoming staples in upscale dining from New York to London. Global supply chains emerged, exemplified by bluefin tuna auctions in Tokyo sourcing fish airlifted from Atlantic fisheries, supporting a market valued at billions by the 2000s. This expansion intertwined with sushi's rise, but sashimi's emphasis on unadorned freshness distinguished it, appealing to health-conscious consumers valuing omega-3-rich proteins.[26] Modern adaptations reflect both innovation and response to challenges like overfishing and dietary shifts. Farmed Atlantic salmon sashimi, pioneered by Norwegian exporters in the late 1970s through safety trials proving low parasite risks, gained traction in Japan by 1980 and subsequently worldwide, supplanting traditional avoidance of wild Pacific salmon.[27] Techniques such as blast-freezing standardized safety for export markets, while sustainability efforts promote alternatives like yellowtail or farmed tuna amid bluefin depletion concerns. Vegetarian variants, slicing vegetables like avocado or yam into sashimi-style presentations, emerged in the 21st century to accommodate global palates, alongside fusions like Hawaiian poke incorporating sashimi cuts with local ingredients.[17]Preparation and Techniques
Fish Selection and Quality Standards
Fish selection for sashimi prioritizes species with inherently low parasite risk, such as bluefin tuna (Thunnus thynnus) and farmed Atlantic salmon (Salmo salar), due to their marine habitats and controlled diets that minimize exposure to parasitic nematodes like Anisakis simplex.[28][29] Wild-caught fish from open oceans generally pose lower infection rates compared to freshwater or coastal species, but no fish is entirely parasite-free without treatment.[30] To mitigate risks, the U.S. FDA mandates freezing fish intended for raw consumption at -20°C (-4°F) for 7 days or -35°C (-31°F) for 15 hours, except for aquacultured fish verified parasite-free under controlled conditions.[31] Quality standards emphasize visual and sensory indicators of freshness to ensure optimal texture and flavor, as enzymatic breakdown accelerates rapidly post-harvest. Whole fish should exhibit clear, bulging eyes, bright red gills, and firm, elastic flesh that rebounds when pressed, with a mild, oceanic scent devoid of ammonia or sourness.[32] In Japanese practice, premium sashimi fish like maguro (tuna) are often handline-caught and subjected to ikejime—immediate brain-spiking followed by spinal cord destruction—to halt lactic acid buildup and preserve muscle integrity, yielding superior firmness over net-caught alternatives.[33] Fillets must display vibrant color (e.g., deep red for tuna, translucent for flounder) without browning or dullness, and unbroken cold chain handling from catch to market is essential to prevent bacterial proliferation.[15] The term "sashimi-grade" lacks formal regulatory definition and serves primarily as a vendor assurance of suitability for raw preparation, based on subjective assessments of handling, freezing history, and sensory qualities rather than standardized grading.[30][34] For tuna specifically, Japanese auction systems at markets like Tokyo's Tsukiji employ tiered grading (#1 for highest fat marbling and color retention, descending to #3), influencing sashimi suitability, though these are trade-specific and not universally applied.[35] Empirical data from parasite surveys underscore that even "premium" fish carry residual risks, with infection rates in untreated marine fish averaging 10-50% for Anisakis, necessitating consumer awareness of potential anisakiasis symptoms like abdominal pain if ingested live.[36][28]Slicing and Presentation Methods
Sashimi slicing employs precise techniques to ensure texture, flavor release, and visual appeal, with cuts varying by fish type and desired mouthfeel. The fundamental motion involves a sawing action using a long, single-bevel blade like the yanagiba to minimize tearing of the flesh.[37][38] Hira-zukuri, the most versatile method, produces rectangular slices approximately 1-2 cm wide, 4-6 cm long, and 0.5-1 cm thick, suitable for firm-fleshed fish like tuna or salmon.[39][37] This straight perpendicular cut maximizes surface area for soy sauce adhesion while preserving structural integrity.[40] For leaner white fish such as flounder or seabass, usu-zukuri yields extremely thin, translucent slices—often 1-2 mm thick—arranged overlapping to highlight freshness and delicacy.[37][41] Sogi-zukuri involves angled cuts to create wedge-shaped pieces that stand upright, ideal for presentation of medium-firm seafood like yellowtail.[37][42] Other specialized cuts include kaku-zukuri for cubic chunks in denser preparations and ito-zukuri for fine, thread-like strips used sparingly for garnishes or specific dishes.[37][38] Presentation emphasizes minimalism and seasonality, with slices arranged in odd numbers—typically three, five, or seven—to evoke natural asymmetry and abundance in Japanese aesthetics.[43] A bed of shredded daikon radish or cucumber often supports the pieces, absorbing excess moisture and adding crisp contrast.[44] Garnishes such as shiso leaves, momiji oroshi (grated daikon with chili), and edible flowers provide color balance without overpowering the seafood's purity.[45][44] Condiments like wasabi and soy sauce are served separately to allow diners control, with slices ideally untouched by hands during plating to maintain hygiene and texture.[43] Plating prioritizes visual harmony, grouping similar textures or fanning slices radially to showcase translucency and marbling.[44][45] In high-end settings, seasonal elements like kinome leaves or microgreens may enhance thematic coherence.[43]Essential Tools and Hygiene Practices
The primary tool for sashimi preparation is the yanagiba knife, a long, thin, single-bevel blade typically 210–300 mm in length designed for slicing boneless fish fillets in a single, smooth stroke to preserve texture and appearance.[46] This knife's asymmetric edge, sharpened on one side only, allows for precise cuts that minimize tearing of the delicate raw fish, essential for achieving the thin, uniform slices characteristic of sashimi.[47] A takohiki knife, with a squared tip, serves a similar purpose but is optimized for firmer seafood like octopus.[48] A dedicated cutting board, often made of wood such as hinoki cypress to reduce bacterial adhesion while providing stability, is required to support clean slicing without contaminating the fish.[49] Sharpness of the knife must be maintained through regular honing and professional sharpening, as dull blades can crush fish tissues, compromising quality and increasing contamination risks.[50] Hygiene begins with thorough hand washing in soap and warm water before handling ingredients, alongside maintaining high personal cleanliness to prevent microbial transfer.[51] All surfaces, knives, and cutting boards must be cleaned and sanitized with certified disinfectants prior to use, using separate equipment exclusively for raw fish to avoid cross-contamination with cooked foods.[52] Fish should be rinsed under cold running water to remove surface impurities, then patted dry with single-use paper towels on a sanitized surface.[53] Preparation areas must remain at temperatures below 5°C to inhibit bacterial growth, with tools stored in closed disinfectant solutions when not in use.[52] Adherence to Hazard Analysis and Critical Control Points (HACCP) principles is standard in professional settings to systematically manage risks from pathogens like Anisakis parasites in raw seafood.[15]Varieties and Ingredients
Primary Seafood Types
Tuna (maguro), especially bluefin (hon-maguro), ranks among the most prized and frequently used seafood in sashimi due to its versatile texture ranging from lean red akami to richly marbled otoro belly cuts, which provide escalating levels of umami from inosinic acid and fat content.[54][55] Yellowfin and bigeye varieties offer milder, firmer alternatives suitable for everyday preparations.[55] Salmon (sake or shake), typically farmed Atlantic or Norwegian strains, has become a staple in modern sashimi for its buttery, high-fat profile and mild sweetness, though its prominence stems from post-1980s imports addressing traditional anisakid parasite risks in wild Pacific salmon through freezing protocols.[56][57] Yellowtail (hamachi or buri), a young amberjack, delivers a creamy yet lean bite with subtle sweetness, peaking in availability during winter months when fat content enhances its melt-in-mouth quality without overpowering fishiness.[56][55] Squid (ika), often from species like short-arm or flying squid, provides a chewy, mild contrast to finfish, with cross-hatched scoring techniques tenderizing its firm flesh for easier slicing and consumption.[11][54] Octopus (tako), commonly simmered briefly before slicing to achieve tenderness, offers a springy texture and neutral flavor that absorbs dipping sauces, sourced primarily from Pacific stocks harvested year-round.[11][54] Sea bream (tai or madai), a white-fleshed snapper, exemplifies lean, flaky sashimi with clean sweetness and minimal oiliness, traditionally served during celebrations for its symbolic "medai" (auspicious) name and seasonal spring harvest peaks.[56][54]Non-Seafood and Alternative Varieties
Although sashimi is predominantly associated with raw seafood, regional Japanese cuisines incorporate non-seafood ingredients prepared in similar thinly sliced, raw or minimally cooked styles, often termed with the suffix "-sashi." These varieties, primarily from Kyushu and Okinawa, utilize meats selected for freshness and low pathogen risk, served with soy sauce, wasabi, ginger, or onions.[58] Basashi, or raw horse meat sashimi, is a specialty of Kumamoto Prefecture in Kyushu, where horses raised for consumption yield lean, tender flesh with a mild flavor and cherry-red hue. The meat is sliced paper-thin, often partially frozen for texture, and accompanied by grated ginger, garlic, and scallions for dipping in soy sauce. This dish traces its popularity to the region's equestrian history, with annual production centered on local breeds.[59][60] Torisashi, chicken sashimi from Kagoshima and Miyazaki Prefectures, features slices from the breast or tenderloin—the sites least prone to bacterial contamination due to distance from digestive organs. To mitigate salmonella risks, the meat is typically yuarai (briefly dipped in boiling water) or lightly seared on the surface while keeping the interior raw, yielding a silky texture when dipped in soy sauce. Consumption remains regional and niche, with strict hygiene standards emphasized by local producers.[61] In Okinawa, yagisashi employs raw goat meat, sourced from feral or farmed animals introduced historically for pest control. Thin slices emphasize the meat's firm chew and subtle gaminess, often paired with vinegar or citrus to balance flavors; it reflects the island's resourceful use of introduced species. Similarly, mimiga sashimi uses pig's ears, boiled briefly then thinly sliced for a crunchy, gelatinous bite, dressed in sesame or soy-vinegar mixtures, highlighting Okinawan pork-centric cuisine where "every part of the pig is used except its squeal."[62][63] Beef varieties like gyusashi or rebasashi (liver) appear sporadically, with raw beef loin or liver sliced finely and served fresh, though less common due to stricter food safety scrutiny compared to seafood. Dolphin meat sashimi, consumed in limited coastal areas like Taiji, Wakayama Prefecture, involves raw slices from drive fishery catches but carries elevated mercury levels—up to 100 times legal limits in some samples—prompting health advisories and investigations.[64][58]Serving and Consumption Practices
Traditional Japanese Serving Styles
In traditional Japanese cuisine, sashimi is served as thinly sliced raw seafood, typically arranged artistically on a chilled plate to preserve freshness and enhance visual appeal.[55] The presentation emphasizes minimalism and seasonality, with slices often fanned out or layered in odd numbers—such as three or five pieces per variety—to reflect aesthetic principles derived from ikebana flower arrangement influences.[43] Garnishes known as tsuma, including shredded daikon radish, shiso leaves, and sometimes seaweed or edible flowers, accompany the fish not only for decoration but to cleanse the palate between bites and absorb excess moisture.[65] Sashimi is commonly presented as the opening course in formal multi-course meals like kaiseki, allowing diners to appreciate the pure flavors of the seafood before heavier dishes.[66] Accompaniments include a small dish of soy sauce into which a dab of wasabi is mixed by the diner, along with pickled ginger (gari) for palate refreshment; some varieties, particularly white fish, may pair with grated ginger instead of wasabi to highlight subtle tastes.[67] The dish is served at room temperature or slightly chilled, without rice, distinguishing it from sushi, and is often enjoyed with sake or light beer to complement the delicate textures.[55] Etiquette dictates using chopsticks to handle sashimi, dipping only the fish side lightly into soy sauce to avoid sogginess, and consuming each piece in a single bite when possible to maintain integrity.[68] Pieces are eaten in the sequence presented by the chef, progressing from leaner, milder flavors to richer, oilier ones, respecting the intended progression of tastes.[69] In group settings, sashimi may be shared from a communal platter, with diners transferring portions to individual plates using the provided serving chopsticks or saibashi.[70] This style underscores sashimi's role in emphasizing freshness, skill in slicing, and sensory harmony central to Japanese dining customs.[11]Global Variations and Etiquette
Sashimi, originating as a Japanese delicacy of thinly sliced raw seafood, has spread globally via Japanese immigration and the internationalization of sushi culture, leading to adaptations that incorporate local ingredients and preferences while retaining core slicing techniques. In many Western countries, including the United States and Europe, salmon (Salmo salar) has become the most popular sashimi ingredient, despite its absence from traditional Japanese repertoires due to historical concerns over anisakid parasites in wild Pacific salmon. This shift traces to a 1980s Norwegian marketing campaign, "Project Japan," which promoted farmed Atlantic salmon as safe for raw consumption after freezing to kill parasites, initially targeting export markets before influencing global sushi menus; by the 1990s, salmon sashimi dominated non-Japanese establishments, comprising up to 80% of raw fish orders in some U.S. sushi bars.[71][27] In Peru, Nikkei cuisine—fusing Japanese and Peruvian elements from early 20th-century Japanese laborers—produced tiradito, a dish featuring sashimi-style thin slices of raw fish such as flounder or tuna, but marinated briefly in acidic leche de tigre (tiger's milk) sauce of lime, chili, and fish stock, imparting a ceviche-like tang absent in pure sashimi. Developed in Lima's seafood markets around the 1930s, tiradito emphasizes visual presentation akin to sashimi but adapts to Andean coastal flavors, with annual consumption in Peru exceeding traditional ceviche in upscale restaurants by the 2010s.[17][72] Other regions show subtler changes, such as larger portion sizes in American fusion eateries or occasional incorporation of local seafood like Australian kingfish (Seriola lalandi) in Sydney's Japanese outlets, though these maintain sashimi's emphasis on freshness over heavy seasoning.[73] Etiquette for sashimi consumption adheres closely to Japanese conventions even internationally, prioritizing respect for the ingredient's purity: diners use chopsticks to handle slices, applying a small dab of wasabi directly to the fish before a light dip in soy sauce to avoid overpowering flavors or sogginess. Traditional sequence progresses from leaner, milder varieties (e.g., white fish) to fattier ones (e.g., tuna belly), with pieces eaten in one bite to appreciate texture; mixing wasabi into communal soy sauce or using forks—common novice errors abroad—is discouraged in authentic settings as it dilutes the fish's natural taste.[67][68] In global adaptations like tiradito, etiquette shifts toward fork use due to saucing, but high-end Nikkei venues in Lima and Tokyo uphold chopsticks for unmixed presentations.[74] Purists worldwide, including in New York and London sushi bars, enforce these rules to preserve sashimi's minimalist aesthetic, with violations noted in etiquette guides as early as the 2000s.[66]Nutritional Aspects
Key Nutrients and Health Benefits
Sashimi derives its nutritional value primarily from fresh, raw seafood, offering high-quality complete protein that supplies all essential amino acids necessary for muscle repair and metabolic functions. A typical 100-gram serving of salmon sashimi provides approximately 20 grams of protein, while leaner varieties like yellowfin tuna offer around 23 grams, with minimal carbohydrates and calories ranging from 100 to 200 kilocalories depending on fat content.[75][76] Fatty fish commonly used in sashimi, such as salmon and mackerel, are rich in long-chain omega-3 polyunsaturated fatty acids (PUFAs), including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), with levels often exceeding 1,000 milligrams per 100 grams in salmon.[77] These omega-3s support cardiovascular health by reducing inflammation and improving lipid profiles, as evidenced by epidemiological studies linking seafood consumption to lower risks of heart disease.[78][79] Leaner sashimi options like tuna provide lower fat but still contribute bioavailable omega-3s alongside selenium, which aids antioxidant defense.[80] Sashimi also delivers key micronutrients, including vitamin B12 (essential for neurological function and red blood cell formation, with over 100% of daily needs met in a 100-gram serving of most fish) and vitamin D (up to 15 micrograms in fatty species, supporting bone health and immune response).[77] Iodine from marine sources promotes thyroid function, while the overall low saturated fat profile aligns with dietary patterns associated with reduced chronic disease incidence in observational cohorts.[81] These attributes position sashimi as a nutrient-dense food when sourced from low-contaminant species, though benefits accrue most reliably from moderate, varied intake.[82]Comparative Dietary Value
Sashimi provides a lean source of high-quality, complete protein comparable to other animal-based proteins, with approximately 20-25 grams of protein per 100 grams serving depending on the fish species, such as maguro (tuna) at 23.3 grams or sake (salmon) at 20.4 grams.[83] This matches or exceeds the protein density of cooked poultry like chicken breast (around 31 grams per 100 grams post-cooking due to moisture loss) but offers superior essential amino acid profiles enriched with omega-3 fatty acids absent in terrestrial meats.[84] Unlike red meats, which average 25-30 grams of protein per 100 grams but higher saturated fats (5-10 grams), sashimi from fatty fish delivers 1-2 grams of EPA and DHA per 100 grams, supporting cardiovascular health without the caloric density of beef (250 kcal/100 grams vs. sashimi's 100-200 kcal).[85][86] In comparison to cooked fish, sashimi preserves higher levels of heat-labile nutrients, including up to 20-30% more omega-3 polyunsaturated fatty acids (PUFAs) like DHA and EPA, as cooking methods such as grilling or frying can reduce retention by 10-50% through oxidation and lipid degradation.[87][88] Protein digestibility in raw fish is slightly lower (85-90% vs. 95%+ in cooked) due to the lack of thermal denaturation, which unfolds proteins for easier enzymatic breakdown, though traditional consumption in Japan demonstrates adequate absorption without supplementation.[83] Calorically, sashimi remains lower than oil-fried or breaded cooked fish equivalents, avoiding added fats that elevate macros beyond 200-300 kcal per 100 grams.[89]| Nutrient (per 100g) | Tuna Sashimi (Raw) | Grilled Tuna | Beef (Lean, Raw equiv.) | Chicken Breast (Cooked) |
|---|---|---|---|---|
| Calories | 108 kcal | 130 kcal | 250 kcal | 165 kcal |
| Protein | 23.3 g | 29.9 g | 21.5 g | 31 g |
| Total Fat | 0.9 g | 1.7 g | 15 g | 3.6 g |
| Omega-3 (EPA+DHA) | 0.2-0.5 g | 0.1-0.3 g | Negligible | Negligible |