Baking Powder (Best Option)
3 teaspoons per 1 teaspoon of baking sodaBaking powder contains both an acid and a base, allowing it to react in the wet environment of a marinade to produce carbon dioxide, which helps tenderize meat by breaking down proteins and increasing pH slightly. This mimics baking soda's effect on texture and flavor balance.
Use slightly more baking powder than baking soda to achieve similar leavening and tenderizing effects. Be cautious not to overuse, as excess can impart a metallic or bitter taste.
Compared to baking soda, baking powder is milder and may result in a slightly less pronounced tenderizing effect, but it maintains the marinade's intended texture and flavor profile effectively.