FAST - Fasting Fuel
30 SERVINGS | Sicilian Lemon Flavor
limited first supply
Elite Hydration for Focus, Energy & Performance
Description
FAST delivers premium hydration through a mix of highly concentrated minerals and glycine. Originally engineered for fasting, then optimized for any demanding routine. No calories, no sugar, and maximum effectiveness in one sachet.
increased energy
deeper focus
top-tier hydration
enhanced longevity
preserved
muscle mass
accelerated
fat loss
INGREDIENTS
HOW TO USE
Open a sachet and pour the powder in a large glass
Add 350-450ml of water according to taste
Mix thoroughly
Drink
WHEN TO DRINK
FAST can be taken any time during your fasting window. Many users find it most beneficial in the morning or during periods of increased mental or physical activity. It can also be used whenever optimal hydration is needed, whether you’re fasting or not.
MADE IN EUROPE
TOP-TIER HYDRATION
4,500mg OF MINERALS & AMINO
DOESN’T BREAK A FAST
REDUCES HEADACHES
REDUCES HUNGER
HIGHLY-CONCENTRATED & EFFECTIVE
MADE IN EUROPE
TOP-TIER HYDRATION
4,500mg OF MINERALS & AMINO
DOESN’T BREAK A FAST
REDUCES HEADACHES
REDUCES HUNGER
HIGHLY-CONCENTRATED & EFFECTIVE
MADE IN EUROPE
TOP-TIER HYDRATION
4,500mg OF MINERALS & AMINO
DOESN’T BREAK A FAST
REDUCES HEADACHES
REDUCES HUNGER
HIGHLY-CONCENTRATED & EFFECTIVE
MADE IN EUROPE
TOP-TIER HYDRATION
4,500mg OF MINERALS & AMINO
DOESN’T BREAK A FAST
REDUCES HEADACHES
REDUCES HUNGER
HIGHLY-CONCENTRATED & EFFECTIVE
hydration has been watered down
Most hydration products make you chug down a full bottle of over-flavored water with barely enough minerals to make a difference. FAST's formula is highly concentrated in minerals and delivers real performance in just one glass.
average mineral content (MILLIGRAMS)
mineral concentration
formulated for performance
Each ingredient in FAST is selected for function. They work together to support hydration, energy, and recovery.
Sodium
Essential for hydration and maintaining energy and mental clarity.
Glycine
Accelerates fat loss and reduces muscle loss during caloric restriction. Helps insulin regulate blood sugar levels.
Potassium
Keeps muscles functioning at their best and prevents cramps while supporting complete hydration
Magnesium
Improves focus, maintains energy levels through optimal mineral balance and helps with recovery
*Based on average mineral content of leading electrolyte and energy drink brands, 2024.
setting higher standards
Alternatives often miss key ingredients, overload with sugar or calories, and simply underdeliver where it counts. FAST is built to create a new standard in hydration.
hydration and electrolyte balance
muscle and nerve functions
energy production and muscle function
fat loss and muscle preservation
WHY FAST?
highly concentrated
FAST delivers 2–3x more minerals per serving than most hydration brands. These are the minerals your body actually uses to hydrate, recover and perform at its best.
Less Water Needed
FAST requires only 400 ml of water compared to the usual 800 ml – 1 L. This keeps mineral levels where they need to be for true hydration, and makes it quick and easy to take anytime.
Zero Calories, Zero Sugar
Clinical studies show glycine supplementation can accelerates fat loss by 14% during caloric restriction. FAST helps support your body's natural fat-burning rhythm, especially during fasting.
The Glycine Advantage
FAST is the only hydration brand with glycine, a compound that helps calm the body and mind. Perfect for entrepreneurs, athletes, and anyone living life at full intensity where stress, training, and overstimulation are part of the daily routine.
Owner @fastr
"I’ve always been anti-supplement. Until I tried FAST."
As someone who’s been in the health space for the last 4 years, i’ve always been anti-supplement… That was, until I tried FAST. This is the only product that noticeably makes me feel sharper, sleep better, and enjoy more of life.
Professional Kitesurfer
"FAST keeps me sharp and hydrated"
As a professional athlete, taking care of my body isn’t optional, it’s part of the job. I use fasting regularly to reset my system and improve how my body works. FAST makes a huge difference during fasting, it keeps me sharp and hydrated and ensures I don’t lose muscle in the process.
Founder
“fasting has been a CRUCIAL part of my journey”
Whether it’s about staying lean, mentally sharp or hungry to go after my goals, intermittent fasting has been a crucial part of my journey. FAST helps me multiply the success that comes with it and eliminating the common side effects.
8-Figure Founder
“fast helps me stay sharp and make things happen”
As a business owner, I perform at my best when I fast during the first part of the day. FAST quickly became essential in my routine to stay sharp and make things happen. It also helped me reduce my coffee consumption and improve my mood and energy
Hybrid Athlete
“FAST changed the game for me”
As someone who travels and trains often, staying properly hydrated used to be a challenge. FAST changed the game for me. One sachet and a glass of water gives me everything I need without the calories, sugar and artificial ingredients of regular sports drinks.
REAL RESULTS IN JUST 7 DAYS
of users report increased energy during fasting after just one week of use.
of users reported improved focus after just one week of use.
of users find it easier to fast longer after just one week of use.
Based on a 7-day study with 20 volunteers
frequently asked questions
Mix one sachet with 200-300ml of water based on your taste preference. Shake or stir until fully dissolved and drink. Thanks to glycine's naturally sweet prole and our minimal use of flavoring, FAST requires way less water than typical hydration products while maintaining a pleasant taste.
FAST can be taken any time during your fasting window. Many users find it most beneficial in the morning or during periods of increased mental or physical activity. It can also be used whenever optimal hydration is needed, whether you’re fasting or not.
No, FAST was specially designed to not break a fast. It contains zero calories and zero sugar, while delivering essential minerals and glycine to optimize your fasting experience
Yes. While designed for fasting, FAST's concentrated mineral formula makes it ideal for any situation requiring premium hydration. The benefits of optimal mineral and electrolytes balance extend far beyond fasting
Beyond its natural sweetness that allows us to create a great taste without sugar, glycine is backed by clinical studies showing remarkable benefits during fasting: 27% less muscle loss and 14% accelerated fat loss. While commonly known as a sleep supplement, glycine's advantages extend throughout active hours, supporting energy production and metabolic health.
Unlike typical hydration products that are over-flavored, loaded with sugar, and under-dosed in minerals, FAST delivers a highly concentrated mineral formula with zero calories. We focus on what matters: optimal mineral ratios in convenient sachets. No unnecessary ingredients, no excessive water intake, no artificial sweeteners—just pure effectiveness.
The recommended serving is 1 sachet per day, during fasting windows or periods requiring enhanced hydration.