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All the benefts of Prolon 5-day Nutrition Program
with delicious gourmet soups

We're excited to bring you Gen3 Soups. Inspired and taste-tested by actual ProLon users, our new soups are bold in taste and sure to please.

Proton 5-Days, essential to vibrant life!


ProLon provides the body with healthy, plant-based ingredients that have been scientifcally demonstrated to proved the body with optimal nourishment.


“Reset Accomplished!”

Clear and easy to follow instructions. Food was better than expected The Fastination FB page was helpful and encouraging.
- Karen Steckler


“I had such a great experience.”

I had such a great experience! Food was great. I had a lot of energy and slept well. I also lost 5 lbs which has been so hard to do! I'll defnitely do Prolon again and have recommended it to friends.
- Kristen


“Amazing Program.”

This is my second time using Prolon. It is so easy to follow and stay on the fasting plan for better health. I lost 6 pounds at the end of fve days. I feel great. My bpm dropped 5 points and My anxiety level is nonexistent.
- Marie


ProLon is designed and clinically tested by 14 global universities to nourish your body with premium quality plant-based food while inducing the cellular, metabolic, and emotional benefts of prolonged fasting.

The Fasting Shake is made of ingredients similar to the Fasting Bar® and tested in pre-clinical trials at the Longevity Institute of the University of Southern California and in clinical trials at various hospitals and centers.

The patented formulation is as effective as water-only fasting in reducing glucose levels and increasing ketone bodies.
Click here to read the science of fasting with food.

Include the shake in the Prolon line of Longevity Health lifestyle products!
Patented for its healthy aging effects - cellular rejuvenation and autophagy.
Transformation in 5-day cycles - 5 days on, 25 days off! Optimal results seen with 3 consecutive cycles.
Fat-focused weight loss, improved sense of well-being, changed relationship with food.

Get the benefits of a nourished intermittent fasting
Rejuvenate Now
How was the Fasting Shake developed?

The fasting shake is based on the scientific discoveries of Dr. Valter Longo, head of the Longevity Institute at the University of Southern California and TIME Magazine Top 50 most influential people in Health, and the clinical trials carried out by the ProLon Science & Medical team.

This Nutri-technology drink keeps the body in a fasting / fat-burning mode while nourishing its organs and systems. Indeed, after over three decades of studies of the body’s response to nutrition and how cells sense food, Longevity scientists devised the Fasting Shake (and the Fasting Bar®) to avoid triggering the body’s response to food keeping it in intermittent fasting and fat-burning mode. Therefore, the shake is a drink that your body will recognize as a “fasting food.

The only scientifically tested fasting nutrition program.

Backed by 20 years and $36 million in research & development

Give your body and your cells the rejuvenation they need!

Cellular Rejuvenation (Autophagy)

A fasting induced miracle of biology called autophagy (which won the Nobel Prize in Medicine in 20), cellular rejuvenation is key to your vibrance, emotions, performance, mental clarity,healthy aging and longevity.

Changed Relationship
with Food

In this 5-day journey, ProLon helps you to understand, appreciate, and change your relationship with food. You can successfully function without all the mindless eating and extra calories.

Improved Sense
of Well-being

Your emotional well being is a huge benefit as most people after ProLon feel successful vs the other long term diets that set you up to quit. Feel empowered, rejuvenated, vibrant, and with more mental clarity.

Healthier, Younger
Looking Skin

Clinically shown after 3 cycles of ProLon (15 days total), to reduce fine lines and wrinkles. Your skin is rejuvenating from the insdie out, which users come to love!

Convenient, Fits Into Every Lifestyle

The beauty of ProLon Fasting Nutrition is it is in 5-day cycles. We recommend doing at least 3 cycles a year (only 15 days). You can include ProLon into your already healthy routine with minimal disruption.

Fat Focused
Weight Loss

Kickstart weight loss (on average 5 pounds), especially belly fat, while protecting lean body mass, (which althletes and performance minded will love). The key is your body thinks your fasting, while you're staying nourished.

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ProLon® Fasting Nutrition Plan

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4.7 out of 5 stars

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More from our customers

I expected to be hungry and then..

I expected to be hungry and then HANGRY, on this program. I was extremely surprised by the fact that not only was I NOT hungry, I also didn't crave my usual nightcap. I really didn't have any cravings for the most part, of course smelling the food I was cooking for my family smells good, but I didn't feel like I NEEDED to eat it. Which was one of the main reasons I wanted to try this program. I enjoyed the food. I did NOT like the drink we had to sip on. The flavor was just not my jam. But other than that I have been pleased with how I feel. I work very hard for a living and I usually need a bit more to eat during the day, NOT this week.

Sara Snyder

This was my10th Prolon fast

This was my 10th Prolon fast. I used this one to reset myself due to having long COVID. I can't begin to describe how much better I feel after doing a prolon fast

Robin Laabs

Amazing Program

This is my second time using Prolon. It is so easy to follow and stay on the fasting plan for better health. I lost 6 pounds at the end of five days. I feel great. My bpm dropped 5 points and My anxiety level is nonexistent.


I use FMD as a reset whenever I fall off the wagon!

This is my third time trying the fast mimicking diet, and I have learned to go back to it whenever I need a reset. I tend to do great at watching what I eat for a period of time, but then start slipping back into old habits over time. At that point, I find that if I do the fast mimicking diet again, it really does reset my thinking about how much I need to eat. Basically if I can get by on 700 to 800 cal per day for five days during the diet, then I can easily bump that up two maybe 1200 calories per day, and keep that going for an extended period of time, once the diet is over.


Prolon leaves the guesswork out of..

Prolon leaves the guesswork out of fasting! The system is super easy to follow and even includes a transition day diet. I always feel great during day and have high energy. I sleep so deep! I love that Prolon makes it so simple to take care of my body on a cellular level... thank you Prolon! Kimberley

Kimberley M.

it is a hard program but it works

it is a hard program but it works. I would not lie, I cannot believe I completed it. I lost 6 pounds and feel really amazing. I will continue with a modified Keto program moving forward

Veronica Diaz

My first 5 day Fast

This was a great experience! I feel amazing, and have so much energy and focus. The food tastes great! I've already recommended to all my friends.

Julie S