It's also an excellent substitute for baking soda in a 1:1 ratio, however, it lacks the salt found in sodium bicarbonate ...

Can you substitute baking powder for baking soda? Related: Baking Soda Vs. Baking Powder: What's The Difference? Baking soda, ...

So if you can’t always rely on using the similar sounding baking agent as a substitute ... potassium bicarbonate (though, you’d also want to add more salt to offset the lack of sodium).