The Relative Biopotency of Fermentation Beta-Carotene, Crystalline Beta-Carotene and Vitamin A for Poultry
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چکیده
منابع مشابه
Twin nutrients for great health: Vitamin A and beta-carotene
But as with vitamin E (which I discussed last week), taking too much of these two nutrients can be bad for you. Birth defects can occur when pregnant women take more than 8,000 IU of vitamin A a day. Liver damage can occur by taking long-term doses of more than 50,000 IU a day. Similarly, a daily intake of 25,000 IU or higher of beta-carotene may increase the risk of cancer (though lower doses ...
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The three beta-carotene intervention trials: the Beta Carotene and Retinol Efficacy Trial (CARET), Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study (ATBC), and Physician's Health Study (PHS) have all pointed to a lack of effect of synthetic beta-carotene in decreasing cardiovascular disease or cancer risk in well-nourished populations. The potential contribution of beta-carotene suppleme...
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Does beta-carotene increase, rather than decrease, human lung cancer rates? A large body of observational epidemiologic study has demonstrated that individuals who eat more fruits and vegetables rich in carotenoids and/or who have higher levels of serum betacarotene have a lower risk of cancer, particularly lung cancer. This inverse relationship has been particularly strong in lung cancer patie...
متن کاملEffects of vitamin E and beta-carotene on sperm competitiveness.
Sperm are particularly prone to oxidative damage because they generate reactive oxygen species (ROS), have a high polyunsaturated fat content and a reduced capacity to repair DNA damage. The dietary compounds vitamin E and beta-carotene are argued to have antioxidant properties that help to counter the damaging effects of excess ROS. Here in, we tested the post-copulatory consequences for male ...
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BACKGROUND: Thalassemia is the most common hereditary disease in the world. Thalassemic erythrocytes are exposed to higher oxidative stress and lipid peroxidation. The aim of this study was to investigate the effects of beta-carotene and vitamin E on erythrocytes lipid peroxidation in beta-thalassemia patients. METHODS: A prospective double-blind, placebo-controlled study of the effect of beta-...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1971
ISSN: 0032-5791
DOI: 10.3382/ps.0500349