Weight Loss

Lose fat. Protect muscle. Keep the weight off.

Prolon's 5-Day Fasting Mimicking Diet harnesses the power of science to deliver healthy, sustainable weight loss in just five days.

Target the right fat

Target dangerous (and stubborn) fat

Weight loss isn’t just about numbers on a scale. Prolon targets visceral fat (like belly fat) — the dangerous fat around your organs linked to heart disease, diabetes, and liver problems. Getting to a healthy weight and keeping muscle helps you live a healthier life, for longer.

Lose dangerous visceral fat

While protecting precious lean muscle.

Lose up to five pounds

Or more, in just one five-day cycle.

Reduce waist circumference

1.5 inches over three consecutive monthly cycles.

Sustain weight loss

Weight stays off after returning to a normal diet.

Muscle matters

Muscle matters. Keep it.

Extreme diets and GLP-1 drugs can help shed pounds — but at the cost of muscle. Up to 40% of weight lost on GLP-1s can come from lean tissue. Prolon is different: it’s clinically formulated and proven to protect muscle, so you don’t just look leaner — you support the very engine that drives metabolism, strength, and blood-sugar control.

The protocol

Three cycles = max results

One cycle delivers results, but the recommended protocol of three cycles per year (just 15 days out of 365!) has been shown to support long-term healthy body composition, weight care — and even a reduction in biological age. Keep it up quarterly to lock in the benefits.

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Mindful eating

Improve your relationship with food

Many users report greater awareness of their food choices following Prolon cycles — improved portion control and a more mindful approach to eating. These shifts make it easier to sustain healthy eating habits, key drivers of long-term weight loss and weight management.

Prolon vs GLP-1 drugs

Our Program

GLP-1 Medications

Fat / muscle loss

Fat loss and muscle protection: lose dangerous visceral fat — while protecting precious muscle.

Muscle loss: up to 40% of weight lost with GLP-1s can be lean muscle, not fat, which can slow your metabolism and make weight regain easier.

Cost

Cost-effective: programs start at a fraction of what drugs can cost.

Costly commitment: weekly injections add up, both financially and as a lifelong dependency.

Side effects

Drug-free and safe: the program works with your body's natural processes, not against them. No drugs, no side effects.

Side effects: from nausea to more serious risks, GLP-1s may take a toll.

Sustainability

Sustainable results: the program resets your metabolism and relationship with food. Studies show the weight loss stays off, even after returning to a normal diet.

No clear exit plan: stopping GLP-1s often leads to weight regain, leaving you stuck in a cycle.

Metabolic reset

Reset your metabolism

Prolon’s 5-Day FMD has been shown to help the body shift into a fat-burning state, reduce visceral fat, and support healthy metabolic markers. Along with the cellular rejuvenative benefits of autophagy, this gives your metabolism a fresh start — helping your body work more efficiently long after the 5 days are over.

A complete system for healthy aging

Five days to lasting wellness

By mimicking fasting states, the clinically tested FMD initiates cellular rejuvenation and targets visceral fat. Your periodic deep clean and systemic overhaul.