Kurzweil began following a strict dietary and supplement regimen, consuming a large number of supplements daily. He believes that these interventions can slow down the aging process and extend his lifespan. Over the years his health and supplement regime has evolved based on research and medical advice.

Kurzweil co-authored 'The 10% Solution for a Healthy Life' with Dr. Michael Roizen, MD, advocating for a low-fat diet to improve health and reduce the risk of heart disease. This marked the beginning of his public advocacy for specific dietary approaches.

Kurzweil co-authored 'Transcend: Nine Steps to Living Well Forever' with Terry Grossman, MD, which outlined a comprehensive program for extending lifespan through nutrition, supplements, detoxification, and emerging medical technologies.

Kurzweil continues to monitor his health closely, undergoing regular medical testing and adapting his health regimen based on the latest scientific research. He is a strong proponent of early detection and proactive healthcare.

Kurzweil is a vocal advocate for increased funding and research into longevity and age-reversal technologies. He believes that significant breakthroughs in these areas are imminent and will dramatically extend human lifespans.