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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.