Vitamin A, also known as Retinol, is a fat-soluble vitamin. It is vital to maintain healthy vision, skin, and hair growth. It plays a pivotal role in the development and maintenance of mucus membranes, and skeletal and soft tissue. In addition, this fat-soluble vitamin plays an important role in immune functions and reproduction.
Vitamin A is found in various animal sources such as meat, eggs, cream and cheese. Foods rich in beta-carotene include bright yellow and orange fruits like apricots and cantaloupe, vegetables such as carrots and pumpkins, and other green leafy vegetables like spinach and broccoli.
The RDA for vitamin A is about 400 mcg for children and 900 mcg for adults. People with too little vitamin A intake are more prone to infectious diseases and vision problems, while too much vitamin A can lead to birth defects.
Recommended intake levels for vitamin A are provided by the Dietary Reference Intakes (DRIs) system. In the below tables the intake levels are presented separately for men and women for different life stages.
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