A Guy’s Review of the ProLon Fasting Mimicking Diet

Dan S

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When I first heard about ProLon from my girlfriend, I thought it was another one of those gimmicky diets. However, after watching her do it and seeing how good she felt after, I was convinced enough to give it a shot. Here it is – the ProLon review for the curious men who may be interested in it.

A five-day mimicking fasting diet.  Sounds like you’re allowed just enough to eat to prevent yourself from going insane.  But that’s what ProLon is in a nutshell: a fast, but not the traditional water one you’d imagine.  ProLon permits you to eat, which gives you the incentive to get through each day, but not so much that your body recognizes the calories or nutrients.  Pretty clever.  

So follow along with me on my ProLon journey, a program that helped me drop about 15 pounds of inflammation weight, drop my caffeine consumption from about 8 cups of coffee a day to 2, and gave me better energy than I’ve had in the last 2 years.

ProLon, in a nutshell

So ProLon  in a word, is sequential.  The box you get has everything you need: an-actually useful water bottle, the “meals”, a Gatorade-esque “L-Drink”, mineral packets, some snack bars, and tea.  The each day is self-contained.  You get five boxes – numbered sequentially 1 through 5.  You do each box in order and consume only what is in the box for the particular day.  You’ll get approximately 3 meals per day, plus tea and (on days 2 through 5) L-drink.  

However, you’re not done at day 5.  You have to basically re-introduce your body food on day 6, so that means light meals.  You get to day 7 and you can resume normal meals.  The purpose of the diet is to get your body to detox on a cellular and metabolic level, and can be done as often as once a month (if you’re a true masochist).  ProLon Review

There are two options.  My girlfriend did the first one, which you can read about here.  I did the second option.  I say “option” but the only real difference is the flavors of soups and L-drink you get each day. ProLon Review

Day 1

Day 1 was by far the worst of the five.  Coincidentally, it’s also the day I had the most calories during the program.  I had no energy, couldn’t focus and it was an absolute struggle.  I had a throbbing headache all day and by the time 9pm rolled around, I was in bed.  In my girlfriend’s experience with it, her second day was the worst, so I was a little apprehensive. 


Day 2 was significantly better than day 1.  My headache, while still there, was significantly improved.  I was hungry but no unmanageably so.  On Day 2, you get about 300 calories less than day 1.  However, my energy started to improve throughout the day.  When I went to bed, I was still tired from lack of calories but far better than Day 1.  I was also more optimistic about how I would feel on Day 3, since my girlfriend said she had started to feel really good on Day 3.

Day 3

Day 3 was a breeze.  My headache was gone, my energy was up.  I didn’t crave coffee or caffeine.  While I was hungry, it was minimal.  Day 3 was also a bit of a mental boost because the end of Day 3, I was over half-way done with the program.  The light at the end of the tunnel was in sight.

Day 4

Day 4 was an improvement over day 3.  I was energetic.  I actually believed for the first time in almost 10 years, that I could make through a day of work without coffee.  And I did.  Having no caffeine at all for three days meant my body could detox from its dependence.  I could focus on work without it.  By the time, I got to bed, I was ready for bed, but not necessarily tired. ProLon Review


By day 5, I was in the homestretch and definitely ready to be done with the program.  But at the same time, I could have also gone another day on it no problem.  My hunger was completely manageable.  I had great energy throughout the day.  I weighed myself and saw I was down to 200 pounds from about 215.  I hadn’t been 200 or anywhere close to it since 2013.  I was shocked.  I went to bed glad I had done the program, but also very ready for real food again. 

Overall Thoughts on ProLon Review

Overall, the program lives up to the hype.  By day 5, my energy was great, my weight was down, I had drastically decreased my caffeine dependence and I felt better about how I looked and felt than I had in years. 

In my opinion, the program was worth doing.  The fact the program as everything was planned out for me in advance made it simple to follow.  I didn’t have to think about anything.  

There was a mental sense of accomplishment as you worked through each day – as you finished a box for the particular day you got to actually see how many days you had left and how many you had made it through. 

That said, the solubility of some of the meals could use some work – the soups clump easily.  However, the program is top-rated for a reason, and I can definitely understand why.

Tips for Starting ProLon

My tips for getting through it? I’d start on a Saturday (or a Friday you know if going to be light at work), so that you can get what are typically the two most difficult days out of the way without having to worry too much about work (assuming you don’t work weekends).  

Also, be wary of what you drink.  The program is self-contained down to the milligram of sodium you get.  So anything you consume can potentially affect it.  I have a weak spot for Topo Chico, but mineral water contains, you guessed it, minerals in excess of what the program is designed to give you.  So stick to filtered regular water for the five days. I don’t think it had an effect, but, hey you never know. 

So how did I prepare myself mentally and physically for it? I binged on junk food.  I ate crappy food and drank quite a bit of beer, just to get the gluttony and cravings out of the way before I started.  And also to see how much better I could feel after ProLon if I made myself feel truly crappy beforehand

So, would I do it again? Absolutely.  I intend to do at least two of these per year going forward, at the minimum (and schedule willing).  The cellular detox you get and the metabolic reset was completely worth it. ProLon Review

ProLon Fasting Mimicking Diet, $199

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Editor’s Note: This article is not medical advice. We encourage you to consult with your trusted healthcare provider before making any decisions regarding your health & wellbeing. There are also some affiliate links throughout the article -The Hive uses commission from our affiliate advertisers (not from you) to fund operations of the business. 

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