ProLon® is a science-based 5-day dietary program that provides nourishment while supporting rejuvenating changes, including s ... upporting metabolic health*. The ProLon Fasting Mimicking Diet® gives many of the benefits of a fast while providing delicious food to help fight hunger, lose fat, and protect lean body mass*. Get a trimmer waistline* and many of the associated benefits of fasting without requiring ongoing lifestyle changes, such as long-term dieting. *Benefits seen in a clinical study of the 5-day ProLon cycle once a month for three consecutive months. read more