The FDA regards sodium bicarbonate as “Generally Recognized as Safe” (GRAS) for use as a food additive, active ingredient in toothpaste, and antacid. Baking Soda makes a solution alkaline, meaning it's able to neutralize acid. It's ability to neutralize acid helps treat conditions related to high acidity in bodily fluids, such as indigestion, which is caused by too much acid in the stomach. People commonly use sodium bicarbonate for indigestion. It is also used for stomach ulcers, athletic performance, kidney damage, dental plaque, tooth discoloration, and many other conditions, but there is no good scientific evidence to support many of these uses.
