Although baking soda is used commonly in cooking and baking, adverse effects such as increased blood pressure, low potassium, swelling of the feet and legs, and in extreme cases, alkalosis can occur. Baking soda can trigger an allergic reaction for some people.
Baking soda, also know as sodium bicarbonate, contains a high amount of sodium that is responsible for most of its adverse effects. Individuals with existing heart or kidney conditions, high blood pressure or who require a low-sodium diet should avoid consuming sodium bicarbonate. It negatively interacts with a number of prescription and non-prescription drugs. Individuals should talk to a doctor before using sodium bicarbonate to treat any condition.