Baking Soda for Exercise Performance

Research suggests that sodium bicarbonate supplementation does not appear to meaningfully improve exercise performance, based on evidence from a meta-analysis of seven randomized controlled trials in racehorses and a small randomized controlled trial in humans exercising at high altitude. Both lines of inquiry found that while sodium bicarbonate reliably raises blood bicarbonate levels and improves measurable markers of the body's acid-base buffering capacity, these physiological changes did not translate into statistically significant gains in running or sprint performance. Studies indicate that the evidence, at least across these specific contexts, points consistently toward a null performance effect. Limitations worth noting include the small human sample size in the altitude study, potential interference from gastrointestinal side effects commonly associated with sodium bicarbonate, and the possibility that the conditions tested — high altitude and equine treadmill protocols — may not fully represent the range of exercise scenarios where buffering capacity could theoretically matter.