Ready, Set, Reset

Kick start your health goals with a 5-day fast with food! Scientifically formulated meal plan to provide nourishment while keeping your body in a fasting state.

Ready, Set, Reset

Kick start your health goals with a 5-day fast with food! Scientifically formulated meal plan to provide nourishment while keeping your body in a fasting state.

Key Benefits of The Fasting Mimicking Diet

Promote Cellular RenewalEnhance
Cellular Renewal

Trigger the beneficial effect of fasting & promote rejuvenation from within

Support Metabolic HealthSupport
Metabolic Health

Maintain healthy levels of metabolic balance. Transform your lifestyle & eating habits.

Enhance Clarity and PerformanceEnhance Clarity & Performance

Customers report feeling greater focus, clarity and energy both during & after the fast.

Weight Loss Weight Loss*

ProLon can induce weight loss while protecting lean body mass. The rate of weight loss may change from subject to subject.

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 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 & Transformation

Your transformational journey is completed. Re-feeding beyond day 5 will fuel a better you.

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

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

ProLon® is taking the world by storm

Supermodel, Actor, TV star, Businesswoman – Rachel Hunter

Rachel Hunter

Features Editor of The Sun & The Sun on Sunday

Jane Atkinson

Celebrity Facialist –

Nichola Joss

What will you
benefit from?