Why Does Vomit Taste Salty? Understanding the Science

Vomit tastes salty because of the presence of hydrochloric acid in gastric juice. Hydrochloric acid is a strong acid that is produced by the stomach to help digest food. When vomit comes into contact with the taste buds on your tongue, the hydrochloric acid activates the salt taste receptors, making the vomit taste salty.