Effect of supplementation with vitamin A or plant carotenes on plasma retinol levels among young Egyptian males.
Thirteen young Egyptian males with initial low plasma retinol level were divided into three groups and received single oral vitamin A dose of 200,000 IU, or carotene supplement in the form of boiled spinach leaves, providing roughly 617 RE/day or carrots providing 394 RE/day. The three supplements were equally effective, when the plasma retinol level was measured 40 days later. On a price basis, the vitamin A capsules and the carrots were much cheaper than the spinach supplement.
National Research Center, Department of Nutrition, Giza.
L
L
Hussein
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M
el-Tohamy
D000293:Adolescent; D002338:Carotenoids / Q000008:administration & dosage* / Q000494:pharmacology; D002648:Child; D003365:Costs and Cost Analysis; D004534:Egypt; D006801:Humans; D008297:Male; D009753:Nutritive Value; D014675:Vegetables; D014801:Vitamin A / Q000008:administration & dosage* / Q000097:blood* / Q000494:pharmacology
D014801:Vitamin A; D002338:Carotenoids