If you’ve ever felt your gas tank run dry halfway through a tough roll or found your arms turning to lead in the third round of sparring, you’ve probably wished for a way to delay muscle fatigue. Interestingly, some are experimenting with a simple kitchen ingredient that might do exactly that: baking soda (sodium bicarbonate).
Sodium bicarbonate acts as a buffer in the body. When you’re pushing hard, whether in jiu-jitsu scrambles or MMA exchanges, your muscles build up hydrogen ions that make them burn and feel heavy. This is the familiar “lactic acid” fatigue. The idea is that baking soda helps neutralize that acidity, buying you more time before fatigue sets in.
Research doesn’t just leave this as gym-bro speculation. A randomized controlled trial looked at boxers taking sodium bicarbonate before performance testing. The results? They showed improved performance and delayed fatigue when compared to placebo groups.
Another study examined high-intensity intermittent exercise under reduced oxygen conditions (similar to the oxygen debt fighters feel under pressure). The bicarbonate group again performed better, confirming its potential in combat sports settings.
Here’s where things get tricky. Internet hacks floating around suggest mixing ½ to 1 teaspoon of baking soda in water 60–90 minutes before sparring. But according to the studies, the effective dose is closer to 0.3 g per kg of body weight. For a 70 kg athlete, that’s about 21 grams, way more than a teaspoon.
The elephant in the room: GI distress. Too much baking soda and you’re running to the bathroom instead of the mats. Nausea, cramping, and bloating are common side effects if you don’t time or measure it right. Some athletes split the dose over an hour or try capsules instead of powder to ease the hit on the stomach.
Practical Takeaway
- Yes, sodium bicarbonate can improve endurance in later rounds.
- The effective dose is 0.3 g/kg bodyweight, not a random spoonful.
- Take it 60–90 minutes before sparring or competition.
- Test it in training first. Never try something new for the first time before a real fight.
- Be prepared for possible stomach issues.
Like all performance hacks, this isn’t a magic tip. But for competitors constantly pushing into fatigue territory, baking soda might be a cheap and legal edge, if you’re willing to stomach it.
References
Siegler JC, Hirscher K. Sodium bicarbonate ingestion and boxing performance. J Strength Cond Res. 2010;24(1):103-108. doi:10.1519/JSC.0b013e3181a392b2. PMID: 19625976.
Deb SK, Gough LA, Sparks SA, McNaughton LR. Sodium bicarbonate supplementation improves severe-intensity intermittent exercise under moderate acute hypoxic conditions. Eur J Appl Physiol. 2018;118(3): 607-615. doi:10.1007/s00421-018-3801-7. PMID: 29344729; PMCID: PMC5805802.
