Answer & explanation:
Vitamins are substances that the body is unable to produce and therefore need to be part of the diet, since a low amount of these vitamins may lead to some diseases (hypovitaminosis).
Its main sources are fruits and vegetables, but they can also be found in meat, milk, eggs and cereals.
Vitamins play several roles in development and organic metabolism. However, they are neither used as energy nor as cellular replacement material. They work as additives, so they are indispensable to the energy production mechanism and others, but in small quantities.
They may be classified as water-soluble and fat-soluble.
<u>Fat-soluble</u> vitamins include vitamins A, D, E and K. Bile is required for the absorption of fat-soluble vitamins, because the body stores fat-soluble vitamins and an excess intake (hypervitaminosis) can result in symptoms of toxicity.
<u>Water-soluble</u> vitamins include vitamins B and C, which do not depend on bile for absorption, most of which is not stored in the body. Excess water-soluble vitamins are usually excreted in the urine. Excretion, however, does not preclude the possibility of toxicity in response to a mega dosing of water-soluble vitamins.
