Dietary deficiency of cobalamin resulting in tissue deficiency in white individuals is unusual. However, several patients with dietary deficiency who were neither vegan nor Hindu have been described. This report describes the case of a 14 year old boy who was a white non-Hindu with a very low intake of cobalamin, which was not apparent until a detailed dietary assessment was performed. The pati...

More than half of the population of the United States uses “dietary supplements.” The Dietary Supplement Health and Education Act of 1994 (DSHEA) (P.L. 103-417) set up a unique regulatory framework in an attempt to strike the right balance between providing consumers access to dietary supplements that they may choose to use to help maintain and improve their health, and giving FDA the necessary...

BACKGROUND For older men and women, the Estimated Average Requirement (EAR) and Recommended Dietary Allowance (RDA) for protein are not known with confidence. Data from the limited research studies available suggest that the EAR and RDA might be greater than the assumed 0.66 and 0.80 g protein x kg body wt(-1) x d(-1), respectively. OBJECTIVE This study assessed the effect of age on the EAR a...

Vitamin and mineral supplementation is often prescribed by physicians to meet the additional nutrient requirements of pregnancy. In order to partially ascertain the effectiveness of these prenatal supplements, the retention of calcium and iron was determined in pregnant women consuming supplemented or unsupplemented self-selected diets. The retention of phosphorus and magnesium, minerals not in...

The effect of dietary betaine supplementation on energy partitioning in growing pigs under energy-restricted dietary conditions was assessed. The effect of betaine on the adaptation in energy metabolism of pigs over time after a change in diet and housing also was studied. Six groups of 14 group-housed barrows were assigned to one of two experimental diets: control or betaine-supplemented (0 or...

Most endurance athletes train for many hours per week to compete in events which generally last no longer than 23 h. However, there are exceptions and these include the full-course triathlon in which competitors swim 2.5 km (l.Smiles), cycle 180km (112miles) and finally run 42.2 km (26.2 miles). Elite athletes win this competition in a little over 8 h. In cycling, there are competitions which l...