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The Only Scientifically-Proven Weight-Loss Diet

ProLon is a 5-day diet that is scientifically proven to achieve weight-loss results.

On average 5lbs of fat loss, mostly belly fat, 1.2-inch reduction in waist circumference and improved lean body mass (*benefits observed in a clinical study).

ProLon is developed after 20+ years of research sponsored by the US National Institute of Health; it triggers the body into a series of fasting response. It is currently the only clinically validated weight-loss diet.

All our ProLon products are manufactured and shipped directly from Europe and the US. Quality and safety guaranteed.

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What Do Doctors Say?


Dr. Amy Savagian, MD

Triple Board: Internal, Integrative and Obesity Medicine

“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. William Hsu, M.D


Former Professor, Havard Medical School 

Former Director of Asian Clinic, Joslin Diabetes Center

Currently Chief Medical Officer, L-Nutra, Inc.

“ProLon carries so many weight, metabolic and cellular benefits that not only do I recommend it, but I decided to join the company’s mission full time as Chief Medical Officer”


Scientifically-proven, fast and healthy weight loss

ProLon has been shown to help people lose an average of 5 pounds of weight, especially effective with belly fat loss, 1.2 inches of waist circumference while preserving lean body mass.


Beyond weight-loss, there is also a wide range of health benefits that includes improving overall health, lowering risks in critical diseases and promoting longevity.

Enjoyable (and it tastes great)

Most other diet plans require a restriction of food, measuring your intake and most likely eating food that doesn’t taste great and you don’t enjoy.


ProLon was created with leading food scientists and chefs to provide delicious food. The no. 1 feedback we have received from our customers is “Very Good Taste!”.


Convenient and easy

The ProLon meals are completed in only 5 days. All the meals you need during the 5 days come within the meal box (one box for each day). You get to eat breakfast, lunch, dinner and even snacks, yet still losing weight.

Grab and go, with minimal disruption in your day. Suits you no matter how busy and hectic your life and work style is.  


Proven weight loss through 5-day ProLon diet

An average of 5 lbs weight loss

Proven belly fat loss through 5-day ProLon diet

Substantial reduction in belly fat mass

Proven waist loss through 5-day ProLon diet

More than 1 inch loss in waist circumference

Improved lean body mass by proven 5-day ProLon diet

Preserved or even improved lean body mass

How does the ProLon Diet work?

Here is the biological response of your body during the 5-day

Proven ProLon 5-day Weight-Loss Diet, Scientifically Proven and Triggered Biological Responses deep within the body
Real Foods throughout the 5 Days

The only difference between the 2 flavors is the choice of soups; both have the same fasting benefits and caloric content

Original Flavor


New Flavor

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