Thickener

Thickeners are substances that increase the viscosity of a liquid without substantially changing its other properties. They are often derived from natural sources like plants (starches, gums) or animals (gelatin), or can be synthesized. Their production typically involves extraction, purification, and sometimes modification of the raw material.

Manufacturers add thickeners to improve the texture and consistency of foods, making them feel smoother and more stable. They prevent ingredients from separating and create a desirable mouthfeel. Thickeners are commonly found in sauces, gravies, jams, jellies, dairy products, and baked goods.

In the US, many common thickeners are Generally Recognized As Safe (GRAS) by the FDA or approved as food additives. When consumed in typical amounts as part of a balanced diet, they are not associated with adverse health effects. International bodies like JECFA and EFSA have evaluated many thickeners. While generally considered safe, some individuals may experience digestive discomfort from very high intakes of certain types, such as sugar alcohols.