File Name: list of vitamins and their functions in hindi.zip
A vitamin is an organic molecule or a set of molecules closely related chemically, i. Essential nutrients cannot be synthesized in the organism, either at all or not in sufficient quantities, and therefore must be obtained through the diet. Vitamin C can be synthesized by some species but not by others; it is not a vitamin in the first instance but is in the second. The term vitamin does not include the three other groups of essential nutrients : minerals , essential fatty acids , and essential amino acids.
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Contact your local county Extension office through our County Office List. Print this fact sheet. For more information on water-soluble vitamins, see fact sheet 9. The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity than water-soluble vitamins when consumed in excess. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals. However, taking vitamin supplements that contain megadoses of vitamins A, D, E and K may lead to toxicity. The recommendation for vitamin A intake is expressed as micrograms mcg of retinol activity equivalents RAE.
Written and peer-reviewed by physicians—but use at your own risk. Read our disclaimer. Vitamins are a group of chemically diverse organic compounds that an organism requires for normal metabolism. Apart from a few exceptions e. Vitamins are micronutrients that do not provide energy like macronutrients but instead have very specific biochemical roles. They can also enable cell signaling vitamin A and gene transcription vitamins A and E or function as hormones e.
We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Fat-soluble vitamins are vitamins A, D, E, and K. They are present in foods containing fats. The body absorbs these vitamins as it does dietary fats. They do not dissolve in water.
Symptoms include hair loss or brittle hair, skin rashes and fungal infection.
Камень рвал кожу на запястьях. Шаги быстро приближались. Беккер еще сильнее вцепился во внутреннюю часть проема и оттолкнулся ногами. Тело налилось свинцовой тяжестью, словно кто-то изо всех сил тянул его .
А когда пыль осела, тело Танкадо попало в руки местной полиции. Стратмор был взбешен. Халохот впервые сорвал задание, выбрав неблагоприятные время и место.
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