This product provides additional acidity to the stomach since Betaine HCL releases hydrochloric acid after swallowing, the same acid that is produced naturally by the stomach. These tablets are designed to dissolve in the stomach where the acidity is required. As we age, our natural production of hydrochloric acid can decline, but its importance for the breakdown of food in the gut remains unchanged. Hydrochloric acid has several different functions; for example, it sterilises the ingested food and activates a powerful enzyme called pepsin that breaks down protein, as well as allowing vitamin B12 to be extracted from foodstuffs. Suitable for both men and women, daily intake is 1 to 3 tablets. Please read the cautions.