Sodium Bicarbonate: How Baking Soda Can Support High-Intensity Performance

Most people think of baking soda as something for baking or cleaning. But one of the more researched performance aids in sports science may be the same box sitting in your kitchen. Sodium bicarbonate (plain baking soda) has a surprising ability to buffer the acid that builds up during hard exercise.

Why It Works

During hard, high-intensity efforts like sprints, rowing, or combat sports, your muscles produce acid faster than your body can clear it. As that acidity builds, it interferes with your muscle contractions and creates the burning, fatigued feeling that forces you to slow down.

Baking soda is alkaline, which means it neutralizes acid. Taken before exercise, it raises your blood's buffering capacity, essentially giving your body more ability to soak up and manage that rising acid. The result may be a little more work before fatigue sets in, whether that's an extra rep, a stronger final sprint, or better output during repeated hard efforts.

What the Research Shows

The effect is well established, to the point that major sports nutrition organizations recognize it. Research suggests sodium bicarbonate can improve performance in high-intensity efforts lasting roughly 30 seconds to 12 minutes, across activities like cycling, running, swimming, rowing, and combat sports.

How It's Used

• It's typically taken 1 to 3 hours before hard exercise
• Doses in research usually fall around 0.2 to 0.3 grams per kilogram of body weight (about 0.09 to 0.14 grams per pound)
• Pairing it with a carb-heavy meal and using smaller doses can reduce side effects
• Some people spread smaller doses across a few days leading up to an event instead of taking one large dose
  

What's The Catch?

Baking soda often causes stomach trouble, including bloating, nausea, and cramping. For some people, that discomfort can hurt performance more than the buffering helps. It's very individual, so it's something to test carefully in training, never for the first time on an important day.

It's also high in sodium, so anyone with high blood pressure, kidney issues, heart conditions, or sodium restrictions should skip it or talk to a doctor first.

Baking soda isn't a magic pre-workout, and it's practically useless for easy training. But for the right kind of hard, high-intensity effort, it's one of the cheapest and most researched tools out there. Tested carefully and used in the right moments, it might just give you the edge when you need it most!

Want to Learn More? Check Out:

• https://pubmed.ncbi.nlm.nih.gov/34503527/

‍