Vitamin Supplements: Hype or Assist for Wholesome Eating. The FNB has established ULs for preformed vitamin A that apply to both food and supplement intakes 5 The FNB primarily based these ULs on the amounts related to an elevated threat of liver abnormalities in women and men, teratogenic results, and a spread of poisonous effects in infants and children.
Website online 10 lists the nutrient content of many meals and provides a comprehensive list of foods containing vitamin A in IUs organized by nutrient content material and by food title , and meals containing beta-carotene in mcg organized by nutrient content and by food identify.
Goodman GE, Thornquist MD, Balmes J, Cullen MR, Meyskens FL, Omenn GS, et al. The beta-carotene and retinol efficacy trial: incidence of lung cancer and cardiovascular disease mortality throughout 6-12 months follow-up after stopping β-carotene and retinol supplements.
Essentially the most significant impact of lengthy-time period, excess beta-carotene is carotenodermia, a harmless situation in which the skin becomes yellow-orange 1 , 24 This condition can be reversed by discontinuing beta-carotene ingestion.
Pregnant girls need additional vitamin A for fetal growth and tissue maintenance and for supporting their own metabolism 19 The World Well being Organization estimates that 9.eight million pregnant girls around the world have xerophthalmia as a result of vitamin A deficiency thirteen Different effects of vitamin A deficiency in pregnant and lactating girls include increased maternal and infant morbidity and mortality, increased anemia threat, and slower toddler progress and improvement.