Is ascorbic acid the same as baking powder?

No, ascorbic acid and baking powder are not the same. Ascorbic acid, also known as vitamin C, is a nutrient that acts as an antioxidant and is commonly used in food preservation and health supplements. Baking powder, on the other hand, is a leavening agent that typically contains a combination of an acid (such as cream of tartar) and a base (like baking soda) to help baked goods rise. They serve different purposes in cooking and nutrition.