NEW— Certified organic, ready-to-eat soups now in our Prolon 5-Day Next Gen

Experience the evolution of fasting science—delivering the same science-backed benefits as our original, but with certified organic, ready-to-eat soups.

SHOP NEXT GEN Take the Quiz

Recommended By:

What is the Prolon 5-Day Program?

Prolon 5-Day is a patented and scientifically-backed Fasting Mimicking Diet (FMD) that activates cellular clean-up pathways while allowing you to eat.

Over five days, you receive precisely formulated meals that help your body enter a rejuvenating state called autophagy.

This program helps you clear out cellular waste, lose weight while protecting your muscle mass, and support your overall health while still nourishing your body.

Shop Prolon

5-Day Nutrition
Program

Best seller

3x Reset
Bundle

The bars that won't break your fast

The shake that keeps you in fat-burn mode

20+ years of science packed in one spread

See How Other's Lives Have Been Transformed

Great Reset

The program is really great, that was my experience. Each day is carefully formulated for where you are at in the journey. I will definitely be doing this program a few times a year.

Monica B.: - Verified Buyer

This Fast Really Works!!

“I’ve done it multiple times now and I love it! I always lose between 5 and 8 pounds and feel fabulous after!!!”

Victoria D.: - Verified Buyer

5 Day Program

Fasts are always a challenge. I really appreciated the education prior to and during so I could understand the why. I used it as a kick start and am now focused on clean eating and intermittent fasting. So far so good. Inflammation down, energy up.

Kelly G.: - Verified Buyer

This Fast Really Works!!

“I’ve done it multiple times now and I love it! I always lose between 5 and 8 pounds and feel fabulous after!!!”

Victoria D.: - Verified Buyer

25+

Years of research

Prolonged fasting (abstaining from food for >72 hours) triggers cellular repair and rejuvenation, known as autophagy.

32

Human clinical trials

Activates the body’s powerful cell-rejuvenating system to support healthy aging.

18

Prestigious University Partners

Autophagy is so important to healthspan and longevity that research on the subject was awarded the 2016 Nobel Prize in Medicine.

200

Global Pending or Issued Patents

Our patented nutrition technology triggers and accelerates autophagy while providing essential nutrients.

Shop Prolon

Discover The Science →

Prolon is Trusted By Over 12,200 Medical Experts

“I love the science supporting Prolon, and I love that the science has been published in multiple peer reviewed journals. It allows me to suggest Prolon with confidence. I have used fasting and time-restricted eating in my practice for years; Prolon augments this and takes it to the next level.”

— Dr. Amy Savagian, MD