Science & Research

Every ingredient.
Every dose. Backed by research.

RITHM was formulated around ingredients and nutrients studied for hydration, electrolyte replacement, endurance, and mental performance under stress.

Hydration & Sodium Loss

0.5–1.5L
fluid lost per hour during exercise
500–1500mg
sodium lost per hour through sweat
+2%
dehydration level that affects reaction time & focus

Key Ingredients

Electrolyte Complex

Fluid balance · Nerve signaling · Muscle function

  • Maintains fluid balance and prevents cramping
  • Supports nerve signaling and muscle contractions
  • More effective than water alone for rehydration
  • Sodium is the primary electrolyte lost in sweat

Keefe et al. Appl. Sci. 2024, 14, 10103

Coconut Water Powder

Natural hydration · Potassium · Minerals

  • Contains potassium, sodium, chloride and minerals
  • Supports hydration similarly to traditional sports drinks
  • Natural source for athletes seeking clean ingredients
  • Supports nerve signaling and mental performance

O'Brien et al. Nutrients 2023, 15, 4308

Taurine

Endurance · Fatigue reduction · Muscle function

  • Supports muscle function and hydration
  • May help maintain performance in long workouts
  • Studied for endurance in hot conditions
  • Reduces fatigue during intense exercise

Li et al. Nutrients 2025. PMCID: PMC12252039

Tyrosine

Focus · Alertness · Stress performance

  • Precursor to dopamine and key neurotransmitters
  • May preserve mental performance under stress
  • Relevant during competitive pressure and fatigue
  • Helps athletes stay sharp late in games

Precursor to dopamine, norepinephrine, and epinephrine

L-Theanine

Calm focus · Stress reduction · Attention

  • Promotes calm, steady focus without jitters
  • May support attention and reduce stress feelings
  • Smooths out overstimulation
  • Ideal for athletes needing focus without anxiety

Amino acid found naturally in green tea leaves

Why it matters for athletes

Reaction time
Dehydration slows response speed when it matters most
Coordination
Electrolyte loss disrupts muscle signaling and control
Concentration
Mental fatigue sets in as hydration drops late in games
Endurance
Performance compounds when hydration and focus align

Research Citations

[1]Keefe, M.S.; Benjamin, C.L.; Casa, D.J.; Sekiguchi, Y. Importance of Electrolytes in Exercise Performance and Assessment Methodology After Heat Training: A Narrative Review. Appl. Sci. 2024, 14, 10103. https://doi.org/10.3390/app142210103
[2]O'Brien, B.J.; Corr, L.; O'Brien, W.; Cummins, A.G. Coconut Water: A Sports Drink Alternative? Nutrients 2023, 15, 4308. https://doi.org/10.3390/nu15194308
[3]Li, J. et al. Effects of Nutritional Supplements on Endurance Performance and Recovery: A Review. Nutrients 2025. PMCID: PMC12252039.
Sodium & Athletic Performance

Sodium & Athletic Performance

Why Sodium?

Sodium isn't just a seasoning — it's a critical electrolyte that powers how athletes train, compete, and recover.

500MG
Min sodium lost per hour
2KMG
Max sodium lost per hour
20%
Daily Value per serving

What Sodium Does

Essential Functions For Your Body

  • Fluid Balance

    Regulates water retention and distribution across cells — keeping you hydrated during intense activity.

  • Muscle Function

    Every contraction — from a sprint to a heavy lift — depends on sodium to transmit nerve-to-muscle signals.

  • Blood Volume

    Maintains the blood volume needed to deliver oxygen and nutrients to working muscles at peak efficiency.

  • Nutrient Absorption

    Actively transports glucose and amino acids across the gut wall — accelerating energy and protein uptake.

Sweat Science

Athletes Lose More
Sodium Than Most

During exercise, sweat carries significant sodium. Failing to replace it leads to performance-robbing consequences.

Muscle Cramps Early Fatigue Reduced Endurance Impaired Focus Hyponatremia Poor Recovery
20%
Daily Value
Per serving

Why This Matters
For Athletes

  • Maintain hydration during prolonged training
  • Support strong, coordinated muscle contractions
  • Speed up recovery between sessions
  • Keep energy levels stable from start to finish
Pro Tip

Pair this product with adequate water intake around workouts. Sodium helps your body hold onto the fluids you drink — making every sip count.