Retinol (depicted) and retinal play a biological role in vision, but most of the effects of vitamin A are exerted by retinoic acid, which binds to nuclear receptors and regulates gene transcription. Vitamin A …

Apr 24, 2023 · This article discusses vitamin A, including its benefits, food sources of the vitamin, and the effects of deficiency and toxicity.

What is vitamin A? Vitamin A is important for your health. It plays many different roles in the body: It may help keep skin healthy. It may help keep good night vision. It is part of normal bone growth.

Vitamin A is a fat -soluble vitamin. Its different forms are often called "retinoids." They include retinol, retinal, retinoic acid, and retinyl ester. Vitamin A is needed for the proper...

Nov 9, 2022 · We all need a healthy dose of vitamin A. This essential nutrient is critical for a healthy immune system, good vision and proper growth and development.

Jan 21, 2025 · Vitamin A helps form and maintain healthy teeth, skeletal and soft tissue, mucus membranes, and skin. It is also known as retinol because it produces the pigments in the retina of …

Vitamin A is important for eyesight and immunity. Learn how much you need, good sources, deficiency symptoms, and health effects here.

Apr 17, 2025 · Vitamin A is a nutrient the body uses to support growth, vision and cell function. It's also called retinol or retinoic acid. Vitamin A has antioxidant properties. Antioxidants are substances that …

The evidence suggests that eating a variety of foods rich in vitamin A, especially fruits and vegetables, is protective from certain diseases, though the health benefit of vitamin A supplements is less clear.

Oct 15, 2025 · Vitamin A is a fat-soluble essential nutrient that supports healthy vision, skin, immunity, growth, and reproduction. People need to get it from foods rich in preformed vitamin A or carotenoids …