منابع مشابه
Vitamin C bioavailability.
The above brief review indicates that the bioavailability of vitamin C in humans is complex and that our current understanding of that process and factors that influence it are incomplete. It is important that an overall pharmacokinetic scheme be developed and tested to completely describe the complex dispositional and absorption processes of the vitamin. Such information will provide a better ...
متن کاملSkin bioavailability of dietary vitamin E, carotenoids, polyphenols, vitamin C, zinc and selenium.
Dietary bioactive compounds (vitamin E, carotenoids, polyphenols, vitamin C, Se and Zn) have beneficial effects on skin health. The classical route of administration of active compounds is by topical application direct to the skin, and manufacturers have substantial experience of formulating ingredients in this field. However, the use of functional foods and oral supplements for improving skin ...
متن کاملVitamin B12 sources and bioavailability.
The usual dietary sources of vitamin B(12) are animal foods, meat, milk, egg, fish, and shellfish. As the intrinsic factor-mediated intestinal absorption system is estimated to be saturated at about 1.5-2.0 microg per meal under physiologic conditions, vitamin B(12) bioavailability significantly decreases with increasing intake of vitamin B(12) per meal. The bioavailability of vitamin B(12) in ...
متن کاملBioavailability of vitamin B₁₂ in cows' milk.
The natural source of vitamin B₁₂ in human diets comes from animal products. For example, one glass (250 ml) of milk provides approximately 50 % of the RDA (2·4 μg/d). It was hypothesised that the provision of vitamin B₁₂ from milk is more efficiently absorbed than the synthetic form used in vitamin supplements. Pigs (n 10) were used as a model for intestinal absorption of vitamin B₁₂ in humans...
متن کاملVitamin E: antioxidant activity, biokinetics, and bioavailability.
INTRODUCTION ..................................................................................... 357 ANTIOXIDANT ACTIVITY ....................................................................... 358 Free Radicals and Oxygen." Lipid Peroxidation and Antioxidants ...................... 358 BIOKINETICS AND BIOAVAILABILITY ..................................................... 361 New Methodology: ...
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ژورنال
عنوان ژورنال: Journal of Nutritional Science and Vitaminology
سال: 1992
ISSN: 0301-4800,1881-7742
DOI: 10.3177/jnsv.38.special_446