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1M+ Happy Healthy Customers

5:2 Fasting Simplified
$135.00 $170.00 SAVE 20%

The Prolon 1-Day Reset makes 5:2 fasting simple, satisfying—and science-backed.

Intermittent fasting is one of the most science-backed strategies to support weight, metabolism, and healthy aging—and the 5:2 method is one of the most sustainable ways to do it. Use Reset on your two low-calorie days, during the 5:2 week, which is clinically formulated to nourish your body while keeping it in a fasting, fat-burning state.
  • Ketosis, without deprivation: Kicks the body into a fat-burning state
  • Effortless & convenient: No prep, no guesswork—all foods are pre-packaged, labeled, and ready to go!
  • Benefits of 5:2: Weight management, cardiometabolic support, enhanced cognitive function, encourage a better relationship with food, and more

    • Choose your offer:

    Includes: Four or eight 1-Day Reset Kits:

  • NEW Next Gen certified organic, ready-to-eat soups - Minestrone, Broccoli and Quinoa
  • Original dehydrated soups - Chickpea & Leeks, Green Pea & Chives
  • Original dehydrated soups - Tomato,Minestrone & Quinoa
    • Fasting nutrition with real benefits
    Practicing 5:2 fasting to promote your health isn’t just about cutting calories; it’s about the kind of nutrition you’re getting. Not all calories are created equal.
    The 1-Day Reset turns 5:2 fasting into a real health practice. Instead of eating “whatever” in those two days just to simply stay under their calorie limit, or struggling to count macros, 5:2 fasters are consuming targeted nutrition that supports long-term wellness.

    It’s clean, plant-based nutrition that supports healthy metabolic markers and healthy glucose levels, and supports muscle mass while promoting healthy fat loss. The 1-Day Reset also encourages a more mindful relationship with food—making it easier to stay consistent week after week.

    Fast with science—not guesswork
    Backed by over two decades of clinical innovation. Foods are scientifically formulated to stay below nutrient sensing pathways, keeping the body in a fasting state. Science, not guesswork.

    Reset and maintain a fasting state

    Maintains a fasting state, supporting the body to burn fat as fuel.

    Healthy fats, and plant-based ingredients

    Essential nutrients allow you to stay nourished while fasting.

    Scientifically formulated and tested

    Stay below nutrient sensing pathways, keeping in a fasting state.

    25+ years of fasting science research

    Patented formula based on research with 18 world renowned universities

    What’s in the box
    Soups

    Foods are scientifically formulated to stay below nutrient sensing pathways, keeping the body in a fasting state.
    Nut Bars

    Activates ketones, targets visceral fat loss while protecting muscle, and supports healthy metabolic markers–in just 24 hours.
    Snacks

    Gives your body the break it needs, gets you back on track, and reduces sugar cravings.
    Supplements

    Provides clean, plant-based nutrition that may help with post-fast energy, clarity, and focus.
    Herbal Teas

    A simple, science-backed way to support your intermittent fasting lifestyle.

    How to use

    Small step, big impact: your simple, science-backed way to restore balance.
    Weekly
    Use once weekly to allow the body to reset by giving it a full fasting break.
    When your routine needs a refresh
    Use before or after periods of over-indulgence to get back on track, break cravings, and return to healthy habits
    Between 5-Day cycles
    Use as a one-day reboot between cycles of Prolon 5-Day FMD. 
    As part of your fasting routine
    The Reset is ideal for intermittent fasters. Use it on fasting days of 6:1 or 5:2 intermittent fasting methods.

    2,000,000+ Happy Healthy Customers

    Backed by science, loved by users
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    “It works—weight management, energy, and mental clarity.”

    - Zaree

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

    - Amy

    Verified Reviewer

    FAQs

    The Reset is ideal for anyone wanting to give their body a 24 hour “breather,” rebalance after indulgence, kickstart a healthy habit, or practice intermittent fasting.
    You can use the Prolon 1-Day Reset whenever your body needs a break—after travel, weekends of indulgence, or as part of a weekly rhythm. Many people incorporate it once a week or up to twice weekly as part of a 5:2 fasting routine (two fasting days, five regular eating days). It’s not recommended to use the Reset on consecutive days or more than twice weekly without consulting your healthcare provider.
    Yes. The 1-Day Reset was designed to fit perfectly into a 5:2 approach, helping you fast two non-consecutive days per week with no guesswork
    The 1-Day Reset can keep the body in a physiological fasting, fat-burning state while the 5-Day FMD is a prolonged fast that triggers autophagy.
    No. The 1-Day Reset is intended as a standalone fasting day or part of a weekly fasting routine. It should not be added before or after a 5-Day FMD cycle.
    The Prolon 1-Day Reset is built on the same patented fasting-mimicking technology as the 5-Day FMD. This nutri-technology is backed by over 25 years research and over 47 clinical trials.
    Transition back to balanced, nourishing meals inspired by the Longevity Diet, plant-forward, rich in legumes and healthy fats, with moderate amounts of protein. You can also incorporate Fasting Bars or L-Protein on non-fasting days to stay consistent with your rhythm and maintain results.
    The 1-Day Reset is 100% plant-based, dairy free, and suitable for vegetarians. However, some components, such as the nut-based L-Bar, contain a small amount of honey, which is a restriction for some vegans.
    Exercise should be avoided, but light activity such as walking, yoga, or stretching is fine.
    Yes. You may enjoy black coffee or tea as long as they are plain - do not add anything like sugar, cream, sweeteners, etc as they can kick the body out of its fasting state.
    The Prolon 1-Day Reset is designed for generally healthy adults and is safe when used as directed. It is not recommended for anyone who is pregnant or nursing, under 18, or diagnosed with certain medical conditions. If you have any chronic condition or take prescription medications, especially those that affect blood sugar, consult your healthcare provider before starting any fasting or calorie-restricted program.