… study show that the serum levels of /J-carotene and vitamin A are decreased in AD patients
when compared with controls. However, the serum levels of a-carotene were normal. There …

… The primary objective of the study was to evaluate the effects of supplemental vitamin E and
β-carotene on the incidence of lung and other major cancers (23). In all, 29,133 White males …

… on levels of the three vitamins in normal, free-living adults. Higher levels of serum vitamin
A among males than among females and higher lev- els of serum carotene in females than in …

… β-carotene intake. An alternative explanation is that serum β-carotene levels reflect not only
β-carotene … been shown for vitamin A and other serum vitamins and minerals. In children, …

… β-carotene on the total dietary intake of vitamin A is complicated, because the efficiency of
conversion of β-carotene … role of β-carotene in fulfilling the recommended intake for vitamin A …

… The antioxidants α-tocopherol, the dominant component of vitamin E, and β-carotene contribute
to … It has been argued that low β-carotene or α-tocopherol serum concentrations may not …

… half of the total vitamin A activity obtained from American diets (2). Although serum vitamin
A is not considered a reliable indicator of dietary intake, the serum carotenoid content is …

… It is not clear that the crude serum vitamin E values should be disregarded, since they may
… of our findings, we recognize that serum vitamin E and beta-carotene may be only indirectly …

… High concentrations are contraindicated in subjects with vitamin K-associated blood … of
vitamin E over long periods requires additional investigation. Toxicity of beta-carotene also is low. …

… We observed no significant linear correlation between serum vitamin D metabolite and
serum β-carotene either at baseline or at follow-up in the placebo or β-carotene groups. At …