What do vitamins do in the body? Vitamins are one of the 6 types of elements needed to keep the body healthy. Carbohydrates, proteins, fats, water and minerals needed by the body are also vitamins. Vitamins play a role in keeping the body healthy, increasing immunity and activating the brain to increase positive thinking and ability. There are two types of vitamins, fat soluble and water soluble. Fat-soluble vitamins are A, D, E and K, while water-soluble vitamins are C and B complex. Vitamin types and foods Vitamin A softens the skin. It helps to keep eye power normal, to grow bones and teeth. It also works to give fertility and immunity and prevent vision problems. There are two types of vitamin A, 'active vitamin A' and 'beta carotene'. Active vitamin A is also known as retinal. Liver, chicken and beef, milk, eggs are its main sources. Beta carotene vitamin is found in fruits and vegetables, which is called carotenoid. This vitamin is found in abundance in dark yell
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