Baking soda as supplement?

Baking soda (sodium bicarbonate) may help delay fatigue during intense exercise; it can also be used gently for oral hygiene.

• Workouts: Start with ¼–½ teaspoon dissolved in water, taken roughly 20–60 minutes before exercise. Start low and increase cautiously if needed: timing varies by person, and higher amounts can cause significant gastric distress. 1 2
• Teeth: Baking soda mixed with water can help disrupt biofilm and may make teeth look somewhat whiter. It is considered relatively low-abrasion; brush gently with a soft toothbrush rather than scrubbing hard. 3