The amazing part about ProLon is it can easily fit into your lifestylle and is only a 5 day change to your normal life. Suggested consumption by Dr. Valter Longo, head of the Longevity Institute at University of Southern California and Author of the Longevity Diet. • If you have a health or metabolic objective in mind and want to achieve faster the metabolic and rejuvenative successes of ProLon, then you can do ProLon every month for 3 or 4 months and then do it once every 3 months to maintain the benefits. • 2 times only per year for Healthy Aging (10 days out of 365 days!) • 3 times per year for Healthy Aging and added Weight Loss (15 days out of 365 days!) Some people do ProLon once a month for reasons that are in line with therapeutic effects of fasting that we are also researching and will launch under a dietitian guided program in 2023.