The Claim

Sodium bicarbonate at a dosage of 0.3 g/kg body weight increases post-exercise blood lactate levels to 15.1 mmol/L in non-professional cyclists, indicating enhanced hydrogen ion buffering capacity during high-intensity exercise and reduced intramuscular acidosis.

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.

How it works
1 study reviewed
In plain English

Taking sodium bicarbonate at 0.3 grams per kilogram of body weight before exercise raises blood lactate levels to 15.1 mmol/L after exercise in non-professional cyclists, which corresponds to increased buffering of hydrogen ions and lower muscle acidity during intense effort.

See the scientific wording

Sodium bicarbonate at 0.3 g/kg body weight increases post-exercise blood lactate levels to 15.1 mmol/L in non-professional cyclists, suggesting enhanced hydrogen ion buffering capacity during high-intensity exercise, which may delay fatigue by reducing intramuscular acidosis.

Why this might work

When sodium bicarbonate is swallowed, it enters the blood and raises the level of bicarbonate ions, which pull hydrogen ions out of muscle cells. This reduces acid buildup inside the muscles, allowing more energy to be made from sugar without slowing down. As a result, more lactate builds up in the blood because the muscles keep producing it, and the person can keep exercising longer before getting tired.

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 dose of baking soda before cycling helped non-professional riders pedal longer and left more lactate in their blood, which means their bodies were better at handling the acid that builds up during hard exercise.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.