What is provitamin?

provitamins are precursors of vitamins. These are eating substances that can be converted by normal metabolic processes into active vitamins. Depending on the involved provitamin and vitamin, the converting process occurs in different parts of the body with different levels of efficacy.

The vitamins themselves are organic nutrients necessary for human life in small quantities. Eleven of the 13 vitamins are supplied with food and two require additional conditions. For example, vitamin D is formed inside the body after exposure to the skin of ultraviolet light. Many vitamins also have provitamins that help people provide the necessary vitamins through other diet channels. These foods include animal and fish products, especially liver and several dairy products, including whole milk, butter and cheese. Many people receive their daily vitamin AZ an important other source: provitamin A, also known as kartenoids. Cartenoids can be found in many sheeps and vegetables, especially those that are red, orange, yellow or greeNo.

Not all fruits and vegetables containing these cartonoid pigments also contain provitamin A, but many do it, including carrots, spinach, green turnip and palm oil. Beta-carotene, provitamin and the most important in the diet of most people can be found in this vegetable, as well as dark yellow gourd, pumpkins, sweet potatoes, tomatoes, broccoli and beet green. Other smaller sources of beta-carotene include most fruit, summer squash, zucchini squash, beans, cabbage, corn, peas and many kinds of nuts.

beta-carotene is converted into vitamin and in a human body with a yield of about 40 to 50 percent and provides up to half the necessary vitamin most people. Individuals with intestinal disorders that change or reduce fat absorption in the diet are less capable of absorbVAT Vitamin A and beta-carotene.

Another Important provitamin is 7-dehydrocholesterol, also Known as provitamin D. As Staved Above, The Formation of Vitamin D Requires Ultraviolet Light, Which Acts on Provitamin d Degrees South Also Must Ingest Dietary Vitamin d

provitamin B5, or panthenol, is alcohol form of vitamin B5. When panthenol was absorbed through the skin, it turns into vitamin B5. It can then moisturize and heal the skin.