It is essential for proper immune system and also contributes to the formation of proteins in the body.
Vitamin a deficiency is manifested most often poor vision in the dark, dry eyes and a violation of the cornea. Appearing may also cracked corners of mouth itchy and rough skin, frequent morbidity risk children. Article Resource by Isabel de los rios Diet Solution Program
Excess vitamin A is just as dangerous as the lack thereof. The varied diet usually does not apply; it is associated in particular with the use of vitamin preparations.
There is loss of appetite, nausea, liver disorders, peeling skin or hair loss. The most serious is during pregnancy, when it can cause permanent damage to the fetus!
Substantial amounts of vitamin D, your body can make contact with the skin of solar radiation. To cover the required dose is sufficient to expose the sun face and arms 3 times a week for about 15 minutes.
Also depends on the color of skin – people with lighter complexions can use up to
70% of solar radiation, while those with darker only between 3 and
30%. However, since
in our latitudes is not sufficient year-round sunshine and mostly irregularly or in the sun long enough to be vitamin D supplement as well as from the diet.