Acid

Acids are compounds that typically taste sour. They can be naturally present in foods like lemons (citric acid) and vinegar (acetic acid), or they can be produced industrially through fermentation or chemical synthesis. Acids are widely used in the food industry for various purposes.

Acids are primarily used to regulate acidity and enhance flavour in foods, often providing a tart or sour taste. They can also act as preservatives by lowering pH, which inhibits microbial growth. Common examples include citric acid in sweets and soft drinks, and acetic acid in pickles and sauces.

Acids used in food are generally considered safe when consumed in typical amounts. While excessive intake of any substance can have adverse effects, acids at permitted levels are not typically associated with significant health concerns for the general population. Some research has explored the role of dietary acids in dental erosion, but this is usually linked to frequent consumption of acidic beverages.