As we age, production of digestive enzymes and all-important hydrochloric acid weakens. This is the main reason why the elderly often have trouble digesting foods. Hydrochloric acid is particularly important, since without it, our naturally-produced enzymes like pepsin never become activated and functional. Betaine HCl is the stable, supplement form of hydrochloric acid, safe and effective when taken orally. NOW Betaine also includes pepsin enzyme to supplement your natural production. Hydrochloric acid supplements can be an enormous help to those who feel bloated and uncomfortable after any meal, but should be used with caution when heartburn or acid reflux are present.