Prolon Help Center

Yes. Prolon is backed by 20+ years of research at USC and has been clinically studied in multiple trials. All ingredients are GRAS (Generally Recognized As Safe) certified. The Fasting Mimicking Diet technology was developed by Dr. Valter Longo, one of the world's leading longevity scientists.

In a clinical study, participants lost an average of 5.7 lbs and 1.6 inches off their waist per cycle. Beyond weight, users report improvements in energy, mental clarity, and cellular rejuvenation through the process of autophagy — your body's natural renewal system. Individual results may vary.

Each Prolon 5-Day kit contains everything you need: plant-based soups, nut bars, energy drinks, herbal teas, the proprietary L-Drink, olives, kale crackers, and a daily supplement pack. All meals are pre-portioned so there's no guessing — just follow the daily guide included in the box.

Prolon is designed for healthy adults between 18 and 70 who want to support weight management, metabolic health, and cellular renewal. It is not recommended for pregnant or nursing women. If you have a serious medical condition, are on medication, or have a history of eating disorders, please consult your physician before starting.

Most people do. Days 1–2 may bring mild fatigue or light-headedness as your body adjusts — plan lighter or flexible days if you can. By days 3–5, most users report normal or even elevated energy levels. We recommend starting on a Thursday or Friday so the adjustment phase falls over the weekend.

The Fasting Mimicking Diet is specifically designed to nourish your body while triggering the benefits of a fast. You'll be eating real food every day. Most people experience mild hunger in the first 1–2 days that passes as the body shifts into fat-burning mode. Staying hydrated helps significantly.

We stand behind Prolon with a 30-day money-back guarantee on your first order. If you're not satisfied, contact our support team within 30 days of purchase for a full refund — no questions asked.