Longo has a new book coming out for a general audience, appears it is suggesting the Fasting Mimicking Diet four times a year, which of course his company can provide.

The Longevity Diet: Discover the New Science Behind Stem Cell Activation and Regeneration to Slow Aging, Fight Disease, and Optimize Weight

https://www.amazon.com/Longevity-Di...n/dp/0525534075