types of vitamins and their functions pdf

Types of vitamins and their functions pdf

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Biological significance of vitamins

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Vitamins: Their Functions and Sources

Biological significance of vitamins

The tables below list the vitamins , what they do in the body their functions , and their sources in food. Water-soluble vitamins travel freely through the body, and excess amounts usually are excreted by the kidneys. The body needs water-soluble vitamins in frequent, small doses. These vitamins are not as likely as fat-soluble vitamins to reach toxic levels. But niacin, vitamin B6, folate, choline, and vitamin C have upper consumption limits.

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.

Vitamins help our bodies grow and develop normally. The best way to get enough vitamins is to eat a balanced diet with a variety of foods. Knowing about different vitamins and what they do can help you to make sure you get enough of the vitamins that you need. Antioxidants are substances that may prevent or delay some types of cell damage. Examples include beta-carotene, lutein, lycopene, selenium, and vitamins C and E.

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If you're like most kids, you've probably heard at least one parent say, "Don't forget to take your vitamin! Vitamins and minerals are substances that are found in foods we eat. Your body needs them to work properly, so you grow and develop just like you should. When it comes to vitamins, each one has a special role to play. For example:. There are two types of vitamins: fat soluble and water soluble.

Vitamins help your body grow and work the way it should. There are 13 essential vitamins — vitamins A, C, D, E, K, and the B vitamins thiamine, riboflavin, niacin, pantothenic acid, biotin, B 6 , B 12 , and folate. Vitamins have different jobs to help keep the body working properly. Some vitamins help you resist infections and keep your nerves healthy, while others may help your body get energy from food or help your blood clot properly. By following the Dietary Guidelines , you will get enough of most of these vitamins from food. Like vitamins, minerals also help your body function. Minerals are elements that our bodies need to function that can be found on the earth and in foods.

Diet generally supplies remaining need. Green, leafy vegetables, cabbage-type vegetables and milk. WATER-SOLUBLE VITAMINS. Vitamin B1. Thiamine. DRI.

Vitamins: Their Functions and Sources

Vitamin , any of several organic substances that are necessary in small quantities for normal health and growth in higher forms of animal life. Vitamins are distinct in several ways from other biologically important compounds such as protein s, carbohydrate s, and lipid s. Although these latter substances also are indispensable for proper bodily functions, almost all of them can be synthesized by animals in adequate quantities. Vitamins, on the other hand, generally cannot be synthesized in amounts sufficient to meet bodily needs and therefore must be obtained from the diet or from some synthetic source. For this reason, vitamins are called essential nutrients.

Most people, apart from vegans, have a three to five year supply in their bodies. Vitamin B1 Thiamin It helps your body turn food into energy. Introduction Our interest in vitamins, dietary supplements, and nutritional biochemistry began in

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Vitamin C and its supplements have marked effect on reducing the risks of cancer, cardiac and respiratory diseases. Vitamin deficiency can cause health problems. So it should be taken in required quantities through other sources such as the food we take, vitamin capsules etc.


  • Alcides A. 19.04.2021 at 16:54

    PDF | The aim of this chapter is to summarize key literature findings regarding the role of micronutrients, mainly vitamins and minerals in health.

  • Guipetnewstu1976 20.04.2021 at 13:39

    WATER SOLUBLE VITAMINS AND FUNCTIONS. COENZYMES AND Vitamins are of different chemical nature. These are forms of vitamin D are D2.

  • Dagoberto Z. 24.04.2021 at 09:59

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  • Miadee 29.04.2021 at 00:20

    Vitamins are a group of substances that are needed for normal cell function, growth, and development.


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