Can I take baking soda in water for overall health?

You can.... ..but I can't tell you it is absolutely beneficial. Proponents suggest it works as an antacid and antiseptic, which may ease stomach and digestive troubles. Some say the increased alkalinity may combat some diseases including kidney stones and gout. But baking soda can interact with other medicines and supplements, and also contains sodium. Most would only use for heartburn. Discuss with your doc.