Science

How Much Sodium Do You Lose?

Sodium is the primary electrolyte lost in sweat.

Research shows that sweat sodium concentration varies between individuals, but many athletes lose approximately 800–1200mg of sodium per litre of sweat. In hot conditions or during prolonged sessions, total sodium losses can be even higher.

This matters because meaningful sweat loss increases electrolyte demand.

Typical Electrolyte Products

Many mainstream electrolyte beverages provide approximately:

• 
  200–500mg of sodium per serve
  

For light activity, this may be sufficient.

However, during heavy sweating, that level may not meaningfully reflect sodium losses.

The Comparison

• Average sweat sodium loss: 800–1200mg per litre
  
• Typical sports drink: 200–500mg per serve
  
• VYTL: 900mg per serve
  

VYTL was formulated to align more closely with real-world sweat losses during demanding training.

Most electrolyte products contain 200–500mg of sodium per serve.

That may be suitable for light activity — but it often falls short during heavy sweating.

Research shows that athletes commonly lose 800–1200mg of sodium per litre of sweat, with even higher losses in hot conditions.

VYTL was formulated with 900mg of sodium per serve to meaningfully support electrolyte replacement during demanding sessions.

This dose was chosen to:

• Replace a substantial portion of sodium lost through sweat
  
• Support fluid balance during high-output training
  
• Help maintain performance in heat and endurance conditions
  
• Provide a serious hydration option for serious training
  

VYTL is not designed as a casual daily hydration drink.

It’s built for sessions where sweat loss is significant and electrolyte demands are higher.

Hydration isn’t just about sodium.

It’s about balance.

VYTL is formulated with three key electrolytes that work together to support performance during demanding activity.

Sodium — 900mg

The primary electrolyte lost in sweat

Sodium plays a central role in maintaining fluid balance during exercise.

When you sweat, sodium is the electrolyte lost in the highest concentration.

Providing 900mg per serve helps support meaningful electrolyte replacement during heavy training and hot conditions.

Potassium — 300mg

Supports muscle function

Potassium works alongside sodium to help maintain normal muscle contraction and fluid balance.

It plays an important role in nerve signalling and muscular performance during sustained activity.

Magnesium — 150mg

Completes the hydration equation

Magnesium contributes to normal muscle function and supports electrolyte balance.

Including magnesium ensures the formula supports performance without relying on sodium alone.

Why Balance Matters

Simply increasing sodium isn’t enough.

Electrolytes function as a system.

Sodium, potassium, and magnesium work together to support fluid balance and muscle performance during exercise.

VYTL was formulated to reflect that balance — delivering a high-sodium dose supported by complementary electrolytes.

Many traditional sports drinks contain added sugar. While carbohydrates can serve a purpose in certain performance contexts, sugar is not required for electrolyte absorption.

Electrolyte transport in the body is primarily driven by sodium-dependent mechanisms. In other words, sodium plays a key role in supporting fluid balance during exercise.

In some training environments — particularly high-intensity sessions or hot conditions — high sugar beverages may not always be preferred. Excess sugar can increase calorie intake and may not suit every athlete’s goals.

VYTL is formulated without added sugar, allowing athletes to control their carbohydrate intake separately if needed.

This makes VYTL suitable for:

• High-output training sessions
  
• Heat exposure and heavy sweating
  
• Low-carb or performance-focused nutrition strategies
  
• Athletes who prefer to fuel and hydrate separately
  

VYTL focuses on electrolytes — not unnecessary fillers.

Osmolality refers to the concentration of dissolved particles in a fluid, and it influences how quickly fluids move through the digestive system and into circulation. Solutions that are excessively high in sugar can increase osmolality, which may slow gastric emptying in some situations. VYTL is formulated with a focus on electrolyte balance rather than added sugars, supporting a hydration approach designed for efficient fluid intake during demanding activity.

VYTL is formulated for individuals who train hard, sweat heavily, and place real demands on their hydration.

It is designed to support:

• High-intensity training sessions
  
• Endurance workouts and long-duration efforts
  
• Training in hot or humid environments
  
• Athletes with high sweat rates
  
• Performance-focused individuals who want precise electrolyte intake
  

VYTL is not positioned as a casual, everyday hydration beverage.

It is built for situations where sweat loss is significant and electrolyte demands are higher.

If your training pushes output, VYTL is formulated to match it.

VYTL was built with a simple principle: formulate based on sweat loss, not shelf trends.

We prioritised meaningful sodium levels, balanced supporting electrolytes, and a formula without unnecessary fillers.

The formulation of VYTL is informed by established research on sweat sodium losses, hydration physiology, and electrolyte balance, including:

• American College of Sports Medicine (ACSM). Exercise and Fluid Replacement Guidelines.
  
• Sawka MN et al. Exercise and Fluid Replacement. Medicine & Science in Sports & Exercise.
  
• Baker LB et al. Sodium Losses in Sweat and Individual Variability.
  
• Shirreffs SM. The Importance of Sodium in Rehydration.
  
• Casa DJ et al. National Athletic Trainers’ Association Position Statement: Fluid Replacement for Athletes.