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Which vitamin is produced in the body with the help of sunlight?
A. Vitamin A
B. Vitamin D
C. Vitamin C
D. Vitamin K
Correct Answer Is Option = Vitamin D
Notes / Explanation
The vitamin that is produced in the body with the help of sunlight is vitamin D, which is unusual among the vitamins because, while most vitamins must be obtained from food, this vitamin can be made by the body itself when the skin is exposed to sunlight. Vitamins are substances that the body needs in small amounts in order to function properly, and they are usually obtained from the food that we eat. Vitamin D, however, has the special feature that it can be produced within the body when the skin is exposed to the rays of the Sun, for a substance in the skin is converted into vitamin D under the action of sunlight, so that spending time in the sunlight helps the body to make this vitamin. Vitamin D can also be obtained from certain foods and from supplements, but sunlight is an important natural source of it. Vitamin D plays a very important role in the health of the body, particularly in relation to the bones and teeth, for it helps the body to absorb and make use of certain minerals, especially the mineral that is needed to build and maintain strong bones and teeth. Because of this, a lack of vitamin D can lead to problems with the bones. In children, a serious lack of vitamin D can lead to a condition in which the bones do not develop properly and become soft and weak, so that they may become bent or deformed, a condition known as rickets. In adults, a lack of vitamin D can lead to weak and painful bones. For this reason, it is important to have an adequate supply of vitamin D, whether through exposure to sunlight, through the diet, or through supplements where necessary. Because sunlight is an important source of the vitamin, people who do not get enough exposure to sunlight may be at greater risk of a deficiency. The study of the vitamins, their sources and functions, and the diseases caused by their lack is a common topic in examinations. For PPSC and other competitive examinations, the key points to remember are that the vitamin produced in the body with the help of sunlight is vitamin D, that it is made in the skin under the action of sunlight and can also be obtained from certain foods, that it is important for the bones and teeth because it helps the body to make use of the mineral needed to build them, and that a serious lack of it causes the condition known as rickets in children.
