Kellogg's advocacy for health reform, temperance, and social justice aligned with the goals of the Progressive Movement, which sought to address social problems and improve the lives of ordinary Americans.

Kellogg was a strong supporter of the temperance movement, believing that alcohol was a major cause of disease and social ills. He advocated for prohibition and promoted abstinence from alcohol.

Kellogg supported various public health initiatives, such as promoting sanitation, hygiene, and disease prevention. He believed that government had a responsibility to protect the health and well-being of its citizens.

Kellogg used the Battle Creek Sanitarium as a platform to promote his progressive ideals and advocate for social reform. He hosted events and conferences that brought together reformers and activists from around the country.