Vitamins A And D

Vitamins A and D are essential nutrients that the body needs to function. Vitamin A is important for vision, immune function, and skin health. Vitamin D helps the body absorb calcium and phosphorus, which are vital for bone health.

Manufacturers add vitamins A and D to foods, especially dairy products like milk, to help people meet their daily intake needs. These vitamins are often added to milk and milk alternatives, as well as some cereals and juices, to fortify them and boost their nutritional value.

The U.S. Food and Drug Administration (FDA) considers vitamins A and D to be safe and effective when used as nutritional supplements. The National Academies of Sciences, Engineering, and Medicine have established upper intake levels for these vitamins to prevent potential adverse effects from excessive consumption. While generally safe, very high doses of vitamin A can be toxic, and excessive vitamin D can lead to high calcium levels in the blood. Both vitamins have been evaluated by international bodies like JECFA and EFSA.