Baking-Soda Ingredient May Lower Risk of Premature Death

Older people may be at increased risk of premature death if they have low levels of bicarbonate, a main ingredient in baking soda, in their blood, a new study suggests. The reason for the link isn't exactly clear, but it may have to do with the ill effects of having slightly acidic blood, the researchers said. Bicarbonate, a base, is a natural byproduct of metabolism that the body uses to regulate the pH level of the blood.