ProLon® 5 Day Fast – Patented Fasting Mimicking Diet


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Get the benefits of a 5-day fast without giving up food! ProLon® is the first and only patented 5-Day Fasting Mimicking Diet that has also gone through clinical trials at the University of Southern California. ProLon gently guides your body into a fasting state to get all the health benefits that come from long fasts while enjoying delicious meals and tasty snacks every day.

  • Everything you need pre-packaged by day and ready to go
  • Consumer panels indicate very good taste
  • Plant-based ingredients without additives, preservatives* or chemicals
  • Daily caloric intake of 770 to 1100 calories from nourishing ingredients
  • Minimal disruption to daily lifestyle
  • Support healthy levels in metabolic markers, cellular rejuvenation, and aging

*ProLon energy drink contains the natural preservative polylysine.

DISCLAIMER: ProLon is not for everyone and cannot be taken by certain individuals. Review the restrictions below.

Important Product Restrictions

ProLon® is a low-calorie diet. Do not start ProLon if:

  • You are allergic to nuts, soy, oats, sesame, or celery/celeriac (ProLon® contains these)
  • You are pregnant or breastfeeding
  • You have dietary restrictions or a fever, cough, diarrhea, or signs of an active infection
  • You have an active infection or are at risk of repetitive infection
  • You are malnourished, have experienced protein deficiency, or you are underweight as follows:

4’11”-5’2” and under 100lbs
5’3”-5’4” and under 105lbs
5’5”-5’7” and under 115lbs
5’8”-5’10” and under 125lbs
5’11”-6’0” and under 135lbs
6’1”-6’4” and under 150lbs

Important information for those with diagnosed medical conditions or age restrictions

Do not use the ProLon® Fasting Mimicking Diet™ without a doctor’s supervision if you have a diagnosed medical condition or are under 18 or over 70. Diagnosed medical condition especially includes diabetes (types 1 or 2), cardiovascular disease, cancer, kidney disease, liver disease, or any history of fainting (syncope).

By ordering ProLon, you certify that you do not have a diagnosed medical condition or age restriction.

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SKU: PLE19-NUT-54239 Category: Brand:


ProLon® is a 5-day dietary program that nourishes your body while promoting regenerative and rejuvenating changes, including supporting healthy levels of a wide range of physiological markers that contribute to aging, such as cholesterol, inflammation, and fasting glucose.

The ProLon Fasting Mimicking Diet® mitigates the burden and danger of water-only fasting, fasting, by providing a tasty and convenient, safe dietary program that does not require ongoing lifestyle changes, such as long-term dieting.

15 years of extensive preclinical and clinical studies sponsored by the National Institutes of Health (NIH) and conducted at the Longevity Institute and Diabetes and Obesity Research Institute of the University of Southern California (USC) resulted in the development of the first FMD® (ProLon®) which stimulates:

  • High level of protection and stress resistance in cells
  • Removal of damaged cells and tissues
  • Self repair of cells resulting in regeneration and rejuvenation within your body

ProLon® meals come in 5 small boxes (one for each day) that include plant-based energy bars, soups, a variety of snacks, drinks, and supplements, all studied and carefully designed to nourish your body and support healthy levels in metabolic markers, cellular rejuvenation, and healthy aging.

Scientific Breakthrough Technology

The ProLon Fasting Mimicking Diet is a nutritional breakthrough that was scientifically developed and clinically tested at the Longevity Institute at the University of Southern California (USC).

The Benefits Continue After The 5 Days End

Stem cell-based rejuvenation continues for up to 5 days once you complete the ProLon Fasting Mimicking Diet and return to your regular healthy meal plan.

Individual Results May Vary

The ingredients in ProLon are considered generally recognized as safe (GRAS). ProLon is not intended to diagnose, treat, cure or prevent any diseases and has not been evaluated as such by the FDA.

Fasting Mimicking Diet Patents

Methods and diets for lowering glucose and/or IGF-1 levels
Patent Number: US9237761 B2
Publication Date: Jan 19, 2016
Inventors: Valter D. Longo, Sebastian Brandhorst, Morgan Elyse Levine

Additional information

Weight 8 lbs
Dimensions 16.5 × 5.5 × 10 in


Supply For

5 Days

Customer Reviews
5 Based on 2 reviews
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Debra D.

Quite manageable; felt great

As a breast cancer survivor I want to do everything in my power to prevent a reoccurence; if that means doing a 5 day fast mimicking diet - I'm in. My husband joined me for moral support and both of us were surprised at our energy level; clear headedness and minimal cravings. I'll be doing this again - a few times a year - to continue supporting my proactive approach to reducing reoccurence rates.

Rachel G.

Good experience

Dr Funk recommended it, and I was able to complete the full 5 days. It was successful.


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