… vitamin E deficiency characterized by neurologic abnormalities, especially ataxia and eventually
death if vitamin … as to why humans require vitamin E is that it is a fat-soluble antioxidant. …

Probably the first nutritional deficiency disease to be clearly recognized was night blindness.
The ancient Egyptians, as indicated in the Papyrus Ebers and later in the London Medical …

A variety of studies have suggested that vitamin D protects against cancer. This seemingly
intuitive proposition is supported by neither epidemiological nor molecular evidence. In fact, …

Vitamin D: The Calcium Homeostatic Steroid Hormone provides a continuing coordinated
group of edited critiques of the dynamic state of the science and art of nutrition. The most …

… by the action of sunlight on a vitamin D precursor in the skin; niacin … ; vitamin A can be
synthesized from precursor carotenoids, and some of the B vitamins and substances with vitamin K …

Vitamin A. … Studies the immunologic capabilities of vitamin A and the carotenoids.
Antioxidant protection against oxidative free radical attack; Functions of vitamin A at the …

Key Points 1. Retinoids are one of the most effective classes of agents for promoting cell
differentiation, and therefore are of strong interest for cancer prevention and cancer therapy. …

Vitamin D3 is synthesized in the skin during summer under the influence of ultraviolet light of
the sun, or it is obtained from food, especially fatty fish. After hydroxylation in the liver into 25…

… [6] A meta-analysis published in 2007 showed that vitamin D supplementation … vitamin D
and summarize the mechanisms that are presumed to underlie the relationship between vitamin …

Stepp (1909) first described a lipid-soluble compound, present in egg yolk, which was essential
for life. A compound with similar biological activity was later found in butterfat, egg yolk, …