4.4
1M+ Happy Healthy Customers

L-Protein

Prolon’s longevity proteins™ are the only protein products patented for healthy aging. The L-Protein shake is formulated with 25g of complete, plant-based amino acids to support muscle synthesis and repair while keeping IGF-1, a pathway known to accelerate aging, low for optimal aging.

  • 25g of plant-based protein

  • Gluten-free, soy-free, dairy-free

  • L-Methionine fortified

  • Keto friendly

  • Low carb, high fiber

  • Blood sugar–supportive

    • Choose your flavors:
    Chocolate
    Chocolate
    0
    Berry
    Berry
    0

    Choose your offer:

    Nutritional information and allergen warning

    ADD THE ESSENTIALS:
    Prolon 5-Day FMD

    Prolon 5-Day FMD

    Five days to lasting wellness and renewal

    $185.00 $215.00
    1-Day Reset

    1-Day Reset

    A complete day of fasting nutrition

    $34.99 $39.99
    Fasting Bar

    Fasting Bar

    Nourish your body and fast for longer

    $34.99 $39.99
    The benefits of patented longevity protein™
    Designed for strength and longevity

    Supports muscle without spiking IGF-1, a pro-aging pathway.
    Uncompromisingly clean

    Vegan, free of soy, gluten, dairy, GMOs, added sugars, artificial sweeteners, or silica.
    Smart nutrition

    High in fiber and iron, and designed to support healthy blood sugar levels.
    Complete plant protein

    Vegan protein that rivals animal protein without the pro-aging downsides.

    Is your protein aging you?
    You're eating protein to be healthy—it's the fuel, and building block, of your body. But many protein formulations spike pro-aging pathways like IGF-1, and they're packed with hidden sugars and other additives that can compromise your health.  

    Prolon longevity proteins are the world's first precision nutrition formulations developed at the Longevity Institute of the University of Southern California and IFOM research center in Italy to support muscle without spiking pro-aging factors in the body.
    SHOP NOW

    How to use

    Enjoy one shake daily as part of your routine to restore, refuel, or maintain balance.
    Morning
    Start your day with steady energy and essential nutrients — a gentle, satisfying way to nourish after fasting.
    Post-fast or post-workout
    Replenish your body with clean protein and healthy fats to support recovery and lean muscle health.
    Afternoon or travel
    An easy, portable option to bridge long days or nourish on the go without compromising your longevity routine.

    2,000,000+ Happy Healthy Customers

    Backed by science, loved by users
    Video thumbnail

    “It works—weight management, energy, and mental clarity.”

    - Zaree

    Verified Reviewer
    Video thumbnail

    "I lost 5 pounds my first round and felt amazing."

    - Amy

    Verified Reviewer

    FAQs

    Many protein formulations on the market spike pro-aging pathways like IGF-1, and they’re packed with hidden sugars and other additives that can compromise your health. Based on our decades of research into nutrition, and studies on optimal IGF-1 levels, we developed our longevity proteins to support muscle—without triggering pro-aging pathways. We also made it with no shortcuts, no hidden ingredients, no tradeoffs. L-Protein is vegan, dairy-free, soy-free, silica-free (yes, many protein powders on the market are packed with silica as a filler), and free of artificial sweeteners. It’s the first protein truly designed to not only fuel your fitness today, but to help you thrive tomorrow.
    Unlike other vegan protein powders, L-Protein uses peas, black beans and chickpeas as part of its overall protein composition rather than grain-based proteins like brown rice or oat powder, which helps to keep our composition lower in carbohydrates. The legumes we use are known to support healthy aging and are part of our overall healthy diet protocols, contributing a healthy dose of plant-based fibers to your diet. L-Protein includes extracts of whole vegetables like broccoli and mushrooms to enhance its nutrient composition and digestibility. Unlike other vegan brands, our protein powder is non-GMO, low carb, free of any harmful additives, gluten or soy. It’s made from whole ingredients, nothing else.
    Our Fasting Shake is part of our intermittent fasting product line. It is intended to be consumed during your fasting window, as it will not break your fast or affect your ketone levels during time restricted feeding (TRF). Additionally, the Fasting Shake is also intentionally low in protein to stay below our body’s nutrient sensing pathways. L-Protein is consumed when you are eating food. It provides calories and a high dose of protein. It can be used as fuel post workout, as part of a healthy breakfast or lunch when you do break your fast, or it can simply be used as a supplement to increase your overall protein intake each day.
    No, L-Protein is not part of our intermittent fasting product line. It is intended to be consumed during your feeding window as part of your overall daily calories and protein goals.
    L-Protein can be used daily to meet your overall daily protein goals. Be sure to consume this protein during your feeding window.