OBJECTIVE To investigate the prevalence of vitamin A deficiency among schoolchildren from a rural area in the Distrito Federal, Brazil, and to correlate this with rates of anemia and malnutrition. METHODS From a total of 179 students, the study recruited 155 schoolchildren (5 to 18 years), whose parents gave permission for blood tests. Plasma retinol concentration was assayed by high resoluti...

OBJECTIVE To investigate vitamin D levels in patients with non-specific musculoskeletal pain, headache, and fatigue. DESIGN A cross-sectional descriptive study. SETTING A health center in Oslo, Norway, with a multi-ethnic population. SUBJECTS A total of 572 patients referred by a general practitioner (GP) for an examination of hypovitaminosis D who reported musculoskeletal pain, headache,...

I . The variability in the purchase and consumption of vitamin C in the diet of people living in the United Kingdom has been studied using the Annual Reports of the National Food Survey Committee and new observations gathered independently. 2. The sources of variability examined have been family household composition, social class, seasonal and week-to-week sampling variation. 3. The distributi...

Over the past 2 years there has been a radical change in standard clinical practice with respect to vitamin D. As a result of a growing body of knowledgeable physicians are assessing the vitamin D nutritional status of their patients and prescribing aggressive repletion regimens of a vitamin D supplement. The present paper summarizes some basic information about this essential nutrient and revi...

OBJECTIVE: There is increasing evidence that vitamin D can be protective against the development of multiple sclerosis (MS), but it may also be beneficial for the clinical course of the disease. Our objective was to prospectively investigate if 25-hydroxy-vitamin D (25OH-D) levels are associated with exacerbation risk in MS in a study with frequent serum measurements. METHODS: This was a prospe...

OBJECTIVE To assess the effect of an improved local ingredient-based gruel fortified or not with selected multiple micronutrients (MM) on Hb concentration of young children. DESIGN In a nutrition centre that we opened in their villages, children received either MM supplement (containing iron, zinc, vitamin A, vitamin C and iodine) with the improved gruel (MMGG) or the improved gruel only (GG)...

In previous experiments,2 an unsuccessful attempt was made to acclimate monkey cord virus to white rats, which had been made completely vitamin B1 deficient by feeding them a vitamin B1 free diet for 30 days prior to the start of the experiment. It was thought that our failure might have been due to the fact that we did not have the animals in a proper state or stage of deficiency; perhaps the ...

CLINICAL QUESTION Are antioxidant supplements associated with higher or lower all-cause mortality? BOTTOM LINE Antioxidant supplements are not associated with lower all-cause mortality. Beta carotene, vitamin E, and higher doses of vitamin A may be associated with higher all-cause mortality.

The present investigation was undertaken to assess the effects of sublethal concentrations of zinc (0.1 and 0.2 mgl(-1)) on the nutritional value of fish Channa punctatus after exposure for 135 days. The parameters studied were, levels of total proteins, glycogen, total lipids, cholesterol and vitamins (A and D) in the muscle. Total proteins, glycogen, total lipids and vitamin D show highly sig...