Simple, science-backed nutrition made for real athletes.
At INFINIT, we obsess over one thing: fueling your body with exactly what it needs — no more, no less — so you can train harder, race smarter, and feel better doing it.
Our formulations are built on real human physiology, sports nutrition research, and more than 20 years of working one-on-one with endurance athletes. Below are the core principles behind every INFINIT mix.
our science
INFINIT 101: OSMOLALITY
The Foundation of Easy Digestion
Osmolality is a scientific measure of concentration — basically, how much stuff (carbohydrates, electrolytes, amino acids, protein, flavoring, etc.) is dissolved in your drink.
Why does this matter? Because your body can only efficiently absorb fluids when what you drink matches the osmolality of your blood (around 280–300 mOsm/kg). When that balance is off, things go south fast.
Isotonic = Optimal Absorption
When your drink is isotonic — matching the osmolality of your bloodstream — fluids, electrolytes, and energy move quickly out of the gut and into circulation. This means rapid hydration, smooth digestion, and steady energy delivery to your working muscles.
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Hypertonic = Too Much Stuff
Gels, chews, bars, salt tabs, and concentrated bottles often stack up in the gut and create a hypertonic environment. When that happens, your body has to pull water from your bloodstream into your gut just to dilute it enough to digest.
The result?
- Delayed gastric emptying
- Nausea, bloating, and GI distress
- Dehydration
- Muscle cramping
- Big performance hits
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Hypotonic = Not Enough Stuff
On the flip side, plain water or low-sodium drinks can be hypotonic. In this case, your stomach actually pulls sodium from your blood to help absorb fluid.
Over time this can contribute to:
- Hyponatremia
- Cramping
- Dehydration
- Overheating
The INFINIT Difference: Osmo-FIT™ Technology
Our patented Osmo-FIT™ system ensures your mix stays in the optimal osmolality range — delivering hydration, carbohydrates, electrolytes, and even protein in a single, easy-to-digest bottle. You get everything you need without overwhelming your gut.
Because even the best ingredients in the world won’t help if they’re too concentrated to absorb. (Think trying to race after eating a cheeseburger — same vibe.)
If you want a custom formulation built exactly for your physiology, sweat rate, and goals, you can work directly with our Registered Dietitians to design your own all-in-one mix.
INFINIT 101: CARBOHYDRATES
Carbohydrates power your muscles during training and racing. But how your body absorbs them depends on the type of carbs you take in.
Glucose and fructose use different intestinal transporters, which means when you consume both together, you can absorb more total energy per hour than with glucose alone. This is the key advantage behind modern high-carb fueling strategies.
Why This Matters
Most athletes comfortably take in 30–60g of carbs per hour, but absorption of glucose alone tends to cap out around 60–66g/hr.
When glucose and fructose are combined, athletes can push carb intake into the 90–120+ g/hr range — supporting higher power output, steadier energy, and improved late-race performance.
Every INFINIT Fuel + Hydration blend already uses pure cane sugar (sucrose) — a natural 50/50 glucose + fructose source — allowing your body to tap into both carb transport systems. That means smoother absorption, more available fuel, and fewer GI issues compared to glucose-only fueling.
For athletes looking to push into true high-carb territory, INFINIT created:
:PREMIUM Fructose Fuel (2:1 Glucose:Fructose)
A scientifically balanced, ultra-high-carb formula designed for athletes who want to fuel at 90–120+ grams per hour. This mix leverages a 2:1 glucose-to-fructose ratio — the current gold standard for maximizing carb absorption while staying easy on the gut.
Because it contains more fructose, it tastes sweeter than our traditional salty/light blends, and athletes should always “train the gut” before race day.
Sodium is the primary electrolyte lost in sweat and the key to maintaining fluid balance, muscle function, and performance.
Baseline Recommendations
Most athletes need 300–600 mg of sodium per hour during sustained activity. But that’s only a starting point.
Sweat Rates Vary… A Lot
Some athletes lose 800–1500+ mg of sodium per hour, especially:
- Heavy sweaters
- “Salty sweaters” (notice salt crust on clothing/skin)
- Hot-weather and long-course athletes
Some athletes lose very little:
- Very light sweaters
- Athletes training in cold weather and at low intensities
- Cold water swimmers
Why INFINIT Allows Complete Sodium Customization
We let athletes dial in sodium anywhere from everyday levels to extreme sweat losses — up to high-sodium, long-course formulations for athletes who need it most.
If you don’t know your numbers, our Sweat Test Coaching program can measure your sweat rate and sodium concentration so you can fuel with precision instead of guesswork.
INFINIT 101: Protein During Exercise
Protein isn’t about fueling — it’s about satiety.
During long endurance sessions (3+ hours), adding a small amount of protein can help:
- Reduce mid-ride hunger
- Stabilize perceived exertion
- Prevent “taste fatigue”
- Support muscle preservation during ultra-distance activity
Our protein-containing formulations use a light touch, enough to curb hunger and stabilize flavor, but still isotonic and easy to digest.
INFINIT 101: Post-Workout Recovery
Training breaks your body down. Recovery is where you build it back stronger.
The Recovery Window
Within 30–60 minutes post-workout, your muscles are primed to absorb nutrients and replenish glycogen.
What You Need After Training
- Carbohydrates to restore glycogen
- High-quality protein (whey isolate) to repair muscle
- Electrolytes to replace what was lost
- A formula your stomach can handle after hard work
INFINIT recovery products like
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Complete Recovery
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Nighttime Recharge
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Create Your Own Protein
These products are built on this principle — clean, complete recovery blends with the right balance of carbs and protein, plus anti-inflammatory ingredients like tart cherry to help you bounce back.
Why Infinit Works
Every INFINIT product, whether it’s a ready-to-use blend or a fully customized mix, is designed around these core principles:
✔ Scientifically grounded osmolality
✔ All-in-one formulas to eliminate guesswork — No extra gels, bars, salt tabs needed.
✔ Easy digestion, even at race intensity
✔ Customizable to your energy needs, sweat rate, hunger level, taste preferences and more.
✔ Simple fueling you can rely on, no matter the distance
Because when you fuel smarter, you perform better — period.
If you want help dialing in a formula built for your sweat rate, your stomach, and your goals, our team of Registered Dietitians is here to help design your perfect mix.