Vitamins And Their Functions PdfBy AimГ© M. In and pdf 22.04.2021 at 20:32 3 min read
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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.
- Vitamins: Their Functions and Sources
- What are fat-soluble vitamins?
- Vitamins and Minerals
- Basic Vitamins: Water-Soluble and Fat-Soluble
A Harvard Health article.
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.
Vitamins: Their Functions and Sources
The list of vitamins and minerals below can give you an understanding of how particular different types of vitamins and minerals work in your body, how much of each nutrient you need every day , and what types of food to eat to ensure that you are getting an adequate supply. The recommendations in this vitamins chart are based largely on guidelines from the Institute of Medicine. Recommended amounts of different types of vitamins may be expressed in milligrams mg , micrograms mcg , or international units IU , depending on the nutrient. Unless specified, values represent those for adults ages 19 and older. Disclaimer: As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
What are fat-soluble vitamins?
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PDF | The aim of this chapter is to summarize key literature findings regarding the role of micronutrients, mainly vitamins and minerals in health.
Vitamins and Minerals
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.
Basic Vitamins: Water-Soluble and Fat-Soluble
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.
Vitamins are a group of substances that are needed for normal cell function, growth, and development. There are 13 essential vitamins. This means that these vitamins are required for the body to work properly. They are:. Each of the vitamins listed below has an important job in the body.
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. For example, there are eight vitamers of vitamin E : four tocopherols and four tocotrienols. Some sources list fourteen vitamins, by including choline ,  but major health organizations list thirteen: vitamin A as all- trans - retinol , all- trans -retinyl-esters, as well as all- trans - beta-carotene and other provitamin A carotenoids , vitamin B 1 thiamine , vitamin B 2 riboflavin , vitamin B 3 niacin , vitamin B 5 pantothenic acid , vitamin B 6 pyridoxine , vitamin B 7 biotin , vitamin B 9 folic acid or folate , vitamin B 12 cobalamins , vitamin C ascorbic acid , vitamin D calciferols , vitamin E tocopherols and tocotrienols , and vitamin K phylloquinone and menaquinones.