Fri, Jul-21-17, 22:07
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Registered Member
Posts: 220
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Plan: Atkins/LCHF
Stats: 209/185/185
BF:reducing
Progress: 100%
Location: Toronto, Canada
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VITAMIN A
Quote:
Other Names:
3-Dehydroretinol, 3-Déhydrorétinol, Acétate de Rétinol, Antixerophthalmic Vitamin, Axerophtholum, Dehydroretinol, Déhydrorétinol, Fat-Soluble Vitamin, Oleovitamin A, Palmitate de Rétinol, Retinoids, Rétinoïdes, Retinol, Rétinol, Retinol Acetate, Retinol Palmitate, Retinyl Acetate, Rétinyl Acétate, Retinyl Palmitate, Rétinyl Palmitate, Vitamin A Acetate, Vitamin A Palmitate, Vitamin A1, Vitamin A2, Vitamina A, Vitamine A, Vitamine A1, Vitamine A2, Vitamine Liposoluble, Vitaminum A.
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Recommended Dietary Allowance (RDA) levels for children and adults have been established: children 1 to 3 years, 300 mcg/day (1000 units); 4 to 8 years, 400 mcg/day (1300 units); 9 to 13 years, 600 mcg/day (2000 units); men 14 years and older, 900 mcg/day (3000 units); women 14 years and older, 700 mcg/day (2300 units); pregnancy 14 to 18 years, 750 mcg/day (2500 units); 19 years and older, 770 mcg/day (2600 units); lactation 14 to 18 years, 1200 mcg/day (4000 units); 19 years and older, 1300 mcg/day (4300 units).
Tolerable Upper Intake Levels (UL) for vitamin A have also been established. The UL is the highest level of intake that is likely to pose no risk of harmful effects. The ULs for vitamin A are for preformed vitamin A (retinol) and do not include provitamin A carotenoids: infants and children from birth to 3 years, 600 mcg/day (2000 units); children 4 to 8 years, 900 mcg/day (3000 units); 9 to 13 years, 1700 mcg/day (6000 units); 14 to 18 years (including pregnancy and lactation), 2800 mcg/day (9000 units); adults age 19 and older (including pregnancy and lactation), 3000 mcg/day (10,000 units).
Vitamin A dosage is most commonly expressed in units, but dosage in micrograms is sometimes used.
http://www.webmd.com/vitamins-suppl...-vitamin+a.aspx
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