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Most runners who use baking soda around hard efforts test about 0.2–0.3 grams per kilogram of body weight in training long before race day.

No standard baking soda amount is advised for bladder infection, since evidence-based treatments from a clinician are safer and more reliable.

A common home dose is 1/2 teaspoon of baking soda dissolved in at least 4 ounces of water for short-term relief of mild heartburn.

A standard tub usually takes 1/4–2 cups of baking soda, with lower amounts for kids and sensitive skin and higher amounts for short adult soaks.

Most healthy adults should keep daily baking soda use for heartburn under around 3½ teaspoons and only rely on it for short stretches of time.

Most sitz baths use about 1 to 2 tablespoons of baking soda in a shallow basin of warm water for gentle perineal relief.

Most healthy adults should keep daily baking soda for heartburn under about 3 teaspoons, dissolved in water and split into several spaced doses.

For short-term heartburn relief, adults use 1/2 teaspoon of baking soda dissolved in water per dose, with limits on how often and how much.

A simple starting point is a 1:1 ratio by volume, which creates a controlled fizz that lifts grime without excess residue or waste.

Most recipes can swap about 3 teaspoons baking powder for each teaspoon baking soda, but expect gentler lift and slightly different flavor.