Results 311 to 320 of about 23,811,925 (358)

Vitamin D deficiency.

New England Journal of Medicine, 2007
Once foods in the United States were fortified with vitamin D, rickets appeared to have been conquered, and many considered major health problems from vitamin D deficiency resolved. But vitamin D deficiency is common.
M. Holick
semanticscholar   +1 more source

The Role of Vitamin A in Wound Healing.

Nutrition in clinical practice, 2019
Vitamin A is an essential micronutrient that comes in multiple forms, including retinols, retinals, and retinoic acids. Dietary vitamin A is absorbed as retinol from preformed retinoids or as pro-vitamin A carotenoids that are converted into retinol in ...
M. Polcz, A. Barbul
semanticscholar   +1 more source

Dietary Reference Intakes for Calcium and Vitamin D

Pediatric Clinical Practice Guidelines & Policies, 2016
Calcium and vitamin D are two essential nutrients long known for their role in bone health. Over the last ten years, the public has heard conflicting messages about other benefits of these nutrients—especially vitamin D—and also about how much calcium ...
A. Ross   +3 more
semanticscholar   +1 more source

Vitamin D deficiency aggravates COVID-19: systematic review and meta-analysis

Critical reviews in food science and nutrition, 2020
There is still limited evidence regarding the influence of vitamin D in people with COVID-19. In this systematic review and meta-analysis, we analyze the association between vitamin D deficiency and COVID-19 severity, via an analysis of the prevalence of
M. Pereira   +4 more
semanticscholar   +1 more source

When is a vitamin NOT a vitamin?

Nutrition & Food Science, 1984
Vitamin C is well known in a nutritional context for being one vital component of the mixed diet we all need for survival. But vitamin C also has value in influencing the organoleptic qualities of foods.
openaire   +2 more sources

Vitamins | Vitamin B6

2011
Vitamin B6 represents a group of substances with vitamin B activity and these substances are derivatives of 3-hydroxy-2-methylpyridine: pyridoxine (alcohol), pyridoxal (aldehyde), and pyridoxamine (amine), and their 5′-phosphorylated forms. Pyridoxal-5′-phosphate serves mainly as a coenzyme for about 100 enzymes in amino acid metabolism including ...
D. Nohr, H.K. Biesalski, E.I. Back
openaire   +2 more sources

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