Vitamin A supplementation is a global health strategy to eliminate vitamin A deficiency and its tragic consequences. Because vitamin A can be stored in the body for a few months, young children only need two high-dose supplements a year. Children should receive their first vitamin A capsule at six months of age. Maternal VAD is also a problem in many countries, as it causes night blindness during pregnancy and babies born with vitamin A deficiency.
Carotenoids, retinol and vitamin E and the risk of benign proliferative breast disease and breast cancer. Since 1994, Nutrition International has been leading the global effort to reduce deaths among children under five by ensuring that vitamin A supplements reach developing countries around the world. A double-masked, randomized clinical trial on high-dose vitamin A and vitamin E supplementation after photorefractive keratectomy. If the vitamin A needs (through supplementation, fortification, or an appropriate diet) of children under five years of age in areas with vitamin A deficiency are met, overall mortality rates could be reduced by up to 23 percent.
It is necessary to increase access and intake of vitamin A-rich foods among vulnerable populations to reduce VAD, including through fortified foods. Vitamin A supplements and the severity of pneumonia in children admitted to the hospital in Dar es Salaam (Tanzania). A double-blind, randomized clinical trial on the effect of vitamin A and zinc supplementation on diarrheal diseases and respiratory tract infections in children in Mexico City, Mexico. Trials on vitamin A supplementation in infants and children aged 6 to 59 months have revealed rare, transient and mild adverse symptoms (irritability, headache, fever, diarrhea, nausea and vomiting).
Vitamin A or beta-carotene supplementation reduces, but does not eliminate, maternal night blindness in Nepal. Antioxidant vitamin and mineral supplements to slow the progression of age-related macular degeneration. Vitamin A supplements ameliorate the adverse effect of HIV-1, malaria and diarrheal infections on child growth. Ultraviolet irradiation of human skin causes functional vitamin A deficiency, which can be prevented by prior treatment with transretinoic acid.
The relationship between serum levels of antioxidant vitamins C and E, retinol and carotenoids with lung function in the general population. Randomized trial that evaluated the effect of vitamin A supplementation on pregnancy outcomes and early mother-to-child transmission of HIV-1 in Durban, South Africa. Association of vitamin A deficiency with squamous intraepithelial lesions of the cervix in women infected with human immunodeficiency virus.