IV. Effects of Substances in the Cosmos and in the Human Body
This hydrochloric acid flows about in our stomach and it is greedy for food. When we take food into our mouths it must first be dissolved by the acid in the saliva—ptyalin. This ptyalin is similar to hydrochloric acid. Then, when the food gets to the stomach, there is pepsin, which is somewhat similar to hydrochloric acid. But pepsin is hydrochloric acid which is alive. It absorbs food greedily. If a man has too little hydrochloric acid he has a bitter taste in his mouth. Why? Because hydrochloric acid takes up all foodstuffs greedily and dispatches them to all parts of the body. So when the hydrochloric acid does not work properly, the food which a man has eaten remains in the stomach. Then he has a bitter taste in the mouth when it comes up as gas, and a coated tongue. Some hydrochloric acid must always be active inside us, especially if we are to build up our limbs.