Antioxidants Vitamin A

Vitamin A is a fat-soluble nutrient essential for vision, immune function, and cell growth. It occurs naturally in foods like liver, fish oils, eggs, and dairy products, and as beta-carotene in fruits and vegetables. Industrially, it can be synthesized or extracted from natural sources.

Vitamin A is added to foods as a nutrient supplement to help consumers meet their daily requirements. It is often found in fortified products such as cereals, milk, and margarine, as well as in some baked goods and nutritional bars.

In the US, Vitamin A is generally recognized as safe (GRAS) when used as a nutrient. The National Academies have established upper intake levels for preformed vitamin A. Excessive intake of preformed vitamin A can be toxic, while beta-carotene is generally considered safe. The WHO and EFSA have also evaluated vitamin A and its precursors.