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#1 Doctor Recommended Fasting Mimicking Diet (FMD) — Prolon

The power of fasting with food. Prolon 5-Day is a patented and scientifically-backed Fasting Mimicking Diet (FMD) that activates cellular clean-up pathways while allowing you to eat.

Over five days, you receive precisely formulated meals that help your body enter a rejuvenating state called autophagy.

This program helps you clear out cellular waste, lose weight while protecting your muscle mass, and support your overall health while still nourishing your body.

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Access the Lowest Prices Through Your Provider

—Now with Subscriptions!

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($205/box)($146/box)

Pay $32.91 every month for next 6 months

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($205/box)($146/box)

Pay $32.91 every month for next 6 months

1 Cycle of Prolon can be used as a trial for the 3 or 4 cycle programs, and can be used for a quarterly maintenance program.

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    Five Days to Cellular Rejuvenation

    A physical and mental reset backed by 25 years of clinical research and science to rejuvenate at the cellular level.

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    Lose Fat and Protect Muscle

    Fat-targeted weight loss while preserving muscle – results shown to be sustainable even after returning to regular eating.

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    Science-Backed Fasting Made Easier

    Experience the benefits of fasting while still receiving nourishment, the revolution of fasting with food.

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    Limited-time Free Fasting Bars

    Enjoy free Variety Pack Fasting Bars when you subscribe. Keep your health goals going between cycles of Prolon.

Longevity Everyday Products

What we choose to eat between fasts plays a vital role in how we age. Our products are rooted in principles of The Longevity Diet, which is built on years of research into the eating habits of those in areas with populations where people live well into their 100s. Designed to help you maintain the Longevity Lifestyle, these products offer powerful intermittent fasting and nutritional support alongside supplements that support gut, brain, heart, and immune and health. Together, these products work to slow the rate of aging and keep you thriving.

($39.99) ($27.98)

Pay $5.83 every month for next 6 months

ProLon ReSet uses the same technology that is in our full 5-day cycle. It is designed for those wanting to test their taste and tolerance before committing to a 3 or 4 cycle regimen. Alternatively use ReSet to support popular intermittent fasting techniques: 5:2 or Alternate Day Fasting.
A quick, one-day reset that utilizes our patented nutrition technology to transition you quickly into ketosis and induce your body to breakdown fat and use it as fuel.
($39.98) ($28.98)

Pay $6.03 every month for next 6 months

Enhance fat burning by using Fasting Bar as a meal replacement. Our nutrition technology proves that it will not break your fast or decrease your ketones.
($69.98) ($48.99)

Pay $10.20 every month for next 6 months

Nourish the body without the guilt! The best from nature, nurtured by ProLon longevity science. Fasting shake is the latest breakthrough in nutrition and healthy aging science.
Elongate your fast without impacting your level of ketosis. Enjoy as a meal replacement during your fasting window.
($59.99) ($41.99)

Pay $8.74 every month for next 6 months

Nourish your body and muscles with clean and complete plant-based proteins that won’t spike pro-aging pathways!
($89.00) ($63.99)

Pay $13.33 every month for next 6 months

Supercharge your longevity goals by including these four powerful antioxidants and polyphynols into your daily routine: algal oil, wasabi root, green tea extract and polynols.
($18.00) ($14.38)

Pay $2.99 every month for next 6 months

Filled with antioxidants, healthy fats and supreme plant-based proteins from Apulian almonds in Italy, longevity never tasted so delicious.

Longevity Everyday Bundles

Unlock the power of daily wellness with Prolon's Longevity Everyday Bundles—a curated collection designed to support healthy aging and keep your body performing at its best. Built around the science of fasting mimicking technology and cellular health, our bundles provide the nutrients and support you need to maintain optimal health and energy every day.

($253.13) ($202.50)

Pay $42.18 every month for next 6 months

With the help of the Holiday Survival Bundle, you can enjoy the festivities without derailing your health goals.

Here’s what’s included:

  • 1-Day Reset (x4 Kits)
  • L-Protein Berry (x12)
  • Fasting Shake (x12)
  • Fasting Bar (x12)
  • L-Spread (x1)


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    ($756.00) ($604.80)

    Pay $126.00 every month for next 6 months

    Healthy Aging Month is the perfect reminder that aging isn’t just about the candles on your birthday cake—it’s about how well your body is functioning on the inside. While we can’t stop the clock, science shows we can influence how we age.

    Here’s what’s included:

  • 3 Next Gen Prolon Kits
  • Free Fasting Bar


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    ($389.69) ($311.75)

    Pay $64.94 every month for next 6 months

    Some things are just better with a friend, and that’s why we’re offering big savings when you purchase this bundle of two Prolon 5-Day, and two free Fasting Bars.

    Here’s what’s included:

  • 2 Prolon Kits
  • 2 Free Fasting Bars


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    ($193.75) ($155.00)

    Pay $32.29 every month for next 6 months

    That’s why we created the Complete Summer Travel Pack — your all-in-one, science-backed solution to stay healthy, energized, and on track, no matter where your summer takes you.

    Here’s what’s included:

  • Fasting Bars Nuts & Honey (12 bars), L-Protein Berry (12-shakes), 1-Day Reset (1 Kit), L-Pill (1mo supply), Prolon 5-Day (optional).


    •
    ($150.00) ($120.00)

    Pay $25.00 every month for next 6 months

    One Day. Zero Prep. Maximum Impact.
    The latest innovation of our 1-Day Reset is here! Next Gen Reset is now upgraded with chef-crafted, ready-to-eat soups made from 100% organic vegetables—no prep, no planning required.

    Here’s what’s included:

  • 4 Reset 1-Day Kits


    •
    ($274.00) ($254.00)

    Pay $52.91 every month for next 6 months

    Burn fat, protect muscle and improve performance with these Prolon IF essentials.

    Here’s what’s included:

  • Prolon 5-Day Program (x1)
  • 1-Day Reset (x3)
  • Fasting Bar (x12)


    •
    ($249.00) ($205.00 )

    Pay $42.70 every month for next 6 months

    Transform your health into a sustainable lifestyle, for life. Backed by 25+ years of science

    Here’s what’s included:

  • Prolon 5-Day Program (x1)
  • Fasting Shake (x14)
  • Fasting Bar (x12)
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    ($261.25) ($209.00)

    Pay $43.54 every month for next 6 months

    Want to feel better, but aren’t sure where to begin? Prolon’s Beginner Bundle is for you.

    Here’s what’s included:

  • 1-Day Reset (x4))
  • Fasting Shake (x14))
  • Fasting Bar (x12)
  • Longevity Spread (x1)
    •
    ($235.19) ($192)

    Pay $40.00 every month for next 6 months

    Support muscle strength and foster healthy aging — bolster a key facet of your journey towards longevity.


    Here’s what’s included:
  • Prolon 5-Day Program (1)
  • Fasting Bars - Nuts & Honey (12)
  • L-Protein - Berry (12)


    •
    ($119.97) ($95.97)

    Pay $19.99 every month for next 6 months

    Three complete all-inclusive kits to offset, detox, and reset with fasting-mimicking nutrition.


    Here’s what’s included:
  • Reset 1-Day Fasting Kit (x3)


    • ($160.00) ($96.00)

    Pay $20.00 every month for next 6 months

    The ultimate nutrition plan with patented and clinically tested products to nourish your body and slow down biological aging between Prolon 5-Day fasts.


    Here’s what’s included:
  • Fasting Bars (12 bars)
  • L-Protein (12 shakes)
  • 1-Day Reset (1 kit)
  • L-Spread (1 jar)


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    Prolon is the only nutrition program patented for promoting longevity, healthspan, and protecting lean body mass through cellular rejuvenation.

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    Backed by 25+ years of research

    Our breakthrough technologies have undergone rigorous independent testing by some of the world’s most prestigious institutions and medical centers. These collaborations, which represent the foundation of L-Nutra, have been crucial in demonstrating the efficacy of our Fasting Mimicking technology.

    32

    Clinical trials on the use of fasting mimicking nutrition.

    200

    Issued or pending patents globally on fasting mimicking nutrition.

    18

    Prestigious University partners in the testing and research of FMD.

    100M

    In funding received to support research and development.

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