The Claim

Ingestion of 0.3 g/kg body weight of sodium bicarbonate prior to high-intensity cycling significantly improves time to exhaustion by approximately 76.4 seconds and increases post-exercise blood lactate levels to 15.1 mmol/L in non-professional cyclists compared to placebo or lower doses.

Source: High doses of sodium bicarbonate increase lactate levels and delay exhaustion in a cycling performance test.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
49score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Non-professional cyclists who consume 0.3 grams of sodium bicarbonate per kilogram of body weight before intense cycling experience a 76.4-second increase in time to exhaustion and reach 15.1 mmol/L of blood lactate after exercise, compared to those who take a placebo or lower doses.

See the scientific wording

Ingestion of 0.3 g/kg body weight of sodium bicarbonate prior to high-intensity cycling significantly improves time to exhaustion by approximately 76.4 seconds and increases post-exercise blood lactate levels to 15.1 mmol/L in non-professional cyclists, compared to placebo or lower doses, suggesting enhanced buffering of metabolic acidosis during intense exercise.

Why this might work

When sodium bicarbonate is swallowed, it enters the blood and increases the level of bicarbonate, which pulls acid out of muscles and into the bloodstream. This keeps the muscles less acidic, so they can keep producing energy and contracting forcefully for longer. Even though more lactic acid is made, the acid does not build up inside the muscles, so fatigue is delayed.

Verified mechanismbased on 1 study

What the research says

1 study

  1. Study: High doses of sodium bicarbonate increase lactate levels and delay exhaustion in a cycling performance test.

    Taking a specific amount of baking soda before a hard bike ride helped regular cyclists pedal 76 seconds longer and left more lactate in their blood, which may help them fight muscle burn. The study proved it works better than taking less.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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