Sodium bicarbonate provides sodium along with bicarbonate, an alkaline buffer that neutralizes excess acids in the body. It is frequently used in sports nutrition to enhance high-intensity performance by reducing lactic acid buildup and supporting muscular endurance.
Functions:
Buffers metabolic acids to maintain blood pH within normal range
Supports skeletal muscle function and delays fatigue during high-intensity exercise
Contributes to fluid and electrolyte balance
Can reduce mild heartburn or gastric acid discomfort
Supports short-term recovery in acid-stressed tissues
Sodium Bicarbonate is an alkaline compound commonly used to support:
Acid–base balance and metabolic alkalinity
Exercise performance and endurance (buffering lactic acid)
Muscle function and cramp prevention
Digestive comfort (acid reflux or heartburn relief)
Electrolyte balance and hydration
Short-term buffering of high dietary acid load
Sodium Bicarbonate is present in baked goods, effervescent sodas and food colourants.
Synergistic Nutrients:
Potassium: Balances sodium intake and supports hydration
Magnesium & Calcium: Support muscle and electrolyte balance
Bicarbonate-producing foods (fruits & vegetables): Enhance acid–base balance
Electrolytes in sports drinks: For hydration and performance
Typical Dosages:
Maintenance / acid-base support: 0.5–1 g/day
Exercise performance / buffering: 0.2–0.3 g/kg body weight, 60–90 min before high-intensity exercise (clinical protocols)
Upper supplemental range: Avoid exceeding 3–5 g/day unless supervised
Divide doses to reduce gastrointestinal discomfort.
May cause bloating, gas, or diarrhea if taken in large doses
Individuals with hypertension, kidney disease, or heart failure should consult a healthcare provider due to sodium load
Avoid combining with other sodium-rich supplements or medications without supervision
NIH Fact Sheet on Sodium: ods.od.nih.gov
McNaughton et al., Sports Med (2016) – Sodium bicarbonate and exercise performance
Siegler et al., J Int Soc Sports Nutr (2016) – Sodium bicarbonate as a buffering agent
Gough et al., Int J Sport Nutr Exerc Metab (2013) – Acute supplementation and athletic outcomes
Sebastian et al., N Engl J Med (1994) – Sodium bicarbonate and acid-base balance