Black Friday Savings!
$50+ Off ProLon®
+ Free 30ct. Fast Bar®
Get set for fasting success with our 5-day Fasting Mimicking
Diet and 30 days of Fast Bar® - Intermittent Fasting Bars.
Order Now + Free Shipping
Black Friday Savings!
$50+ Off ProLon®
+ Free 30ct. Fast Bar®
Get set for fasting success with our 5-day Fasting Mimicking
Diet and 30 days of Fast Bar® - Intermittent Fasting Bars.
Order Now + Free Shipping
Our mission is simple - Empower the undeniable clinically tested health benefits of a prolonged fast with The Fasting Mimicking Diet®. Beneficial for every body, achievable by all.

Key Benefits of The Fasting Mimicking Diet

Promote Cellular Renewal
Cellular Renewal

Trigger autophagy, (the clean-up of old and worn out cellular components) & promote rejuvenation.

Support Metabolic Health
Metabolic Health

Helps you maintain healthy systolic blood pressure.*
*As part of a healthy lifestyle

Enhance Clarity and Performance
Enhance Clarity & Performance

Customers report feeling greater focus, clarity and energy toward the end and after completing the fast.

Fat Focused Weight Loss
Fat Focused
Weight Loss*

Kickstart weight loss, especially belly fat (on average 5 pounds), while protecting lean body mass.

The 5-day journey your body is on.
Transforming from the inside out, swipe right to view the days transformation.

Day 1

Transforming to
a Fasting State

The body transitions into a fasting state & fat-burning mode so it can begin cellular clean-up.


Fat Burning & Ketogenesis

Fat-burning ramps up, contributing to the initiation of ketogenesis (ketone production). By the end of this day (48hrs), ketosis may occur.


Clean Up State

Cellular clean-up (autophagy) begins. Fat-burning and ketone production/ utilization continues and increases.

Day 4


Cellular cleaning/renewal & fat-burning continues. You're in the final stretch!

Day 5 and Beyond

Renewal & Change

Fast completed, cellular renewal continues beyond Day 5.

What fellow Fasters' have to say

Trust Pilot 5 Star ReviewI'm eager to try fasting, but I am skeptical about it. When I've heard about ProLon from a friend of mine, I immediately engaged myself. Good thing I followed the instructions and was able to fast and diet for 5-days. Though it's hard at first, it is worth it.
Aria Luna
Trust Pilot 5 Star ReviewThis was my first 5 day. I was amazed about how I was rarely hungry and how much energy I had. Highly recommend!!
Michele Kehrer
Trust Pilot 5 Star ReviewRound 2 please.
What a wonderful plan and support team. I was nervous and a little skeptical but am so glad I made the decision to try this. I can’t wait to start my second one.
Mariah Wilt CPC
Trust Pilot 5 Star ReviewThe best fasting product out there.

Very healthy, I felt renewed and ready to continue my journey to a healthier me.

Monica Monroy & Jonathan Garcia
Trust Pilot 5 Star ReviewI love this intermediate fasting protocol. Works wonders in wellbeing and byproduct of loss of weight. The packaged items are nice tasting as well. I have already done this protocol about 4 times in the last 6 months.
Sunil Bharitkar
Trust Pilot 5 Star ReviewI would have not thought I could do a 5-day fast, but this FMD was perfect for me. Although there were times I was hungry, I never felt the urge to cheat and had a very successful "fast". I lost over 5 pounds, but more than that I gained so much knowledge. It's easier now to want to eat healthier; even just small tweaks...
Colleen Frazier
Trust Pilot 5 Star ReviewGreat diet. Second time. Got easier. And the results are amazing - lost 4kg (9-10 lbs) in 5 days and I feel great.
Elad Shoushan

The Only Scientifically
Tested Fasting Diet®

ProLon is the first and only clinically tested, doctor recommended fasting meal program. ProLon’s breakthrough nutri-technology was researched for over 20 years and developed by Dr. Longo at The Longevity Institute at the University of Southern California with tens of millions of dollars in funding support from the National Institutes of Health. In 2018, TIME nominated Dr. Longo to be among the top 50 most influential people in health.

The Longevity Diet Order Now + Free Shipping

What will you
benefit from?