Vitamins be introduced into our body through food, we can not synthesize them. The only small exception is vitamin D3, which our skin can in ultraviolet sunlight to synthesize than one form of cholesterol - 7-dehydrocholesterol. But those amounts are insufficient, especially for children and adolescents, pregnant and lactating women. More over, in elderly skin synthesis of vitamin D decreases.
Various factors affect the body's needs of these vital substances. The additional intake of vitamins play a role in prevention of possible deficits in many diseases and disorders is needed and the elderly.
Vitamin deficiency affects certain organs / skin, mucosa, muscle, skeleton. / And a function / growth and development, fertility, mental and physical capacity. A deficiency of vitamin A, B1, C can cause reduced appetite, and this has delayed the metabolism of the body which is the most powerful prerequisite for obesity. Prolonged vitamin deficiency causes reduced capacity, poor health.
Although vitamins are not drugs, some of them in high doses have a therapeutic effect - niacin in hypercholesterolemia / high cholesterol / vitamin B1, migraine.
Other research shows that certain vitamins play a role in treatment and prevention of certain diseases. It is such a significant correlation between vitamin E and cardiovascular risk, but science still lead discussions. Certainly it is proven that folic acid, vitamin B6 and vitamin B12 effectively reduce serum homotsisterina which is an independent risk factor for heart attack. There is evidence for protective effects on the heart of beta carotene and vitamin C has been confirmed that prolonged high intake of beta carotene in smokers increases the risk of lung cancer.
Additional vitamin E helps reduce loss of bone mass in postmenopausal osteoporosis and senile. Area of future research is protective role of vitamin K against osteoporosis. It is known that antioxidant vitamins C and E reduce the risk of developing moleculna degeneration. There is evidence for protective effect of lutein and zeaxanthin on eye health.
The undisputed fact is that taking folic acid for pregnant women reduces the risk of congenital neural abnormalities in infants. Taking antioxidant vitamins and multivitamin supplements enhances immunity.
Vitamins
