background: micronutrient deficiency is one of the major public health problems in the middle east affecting economic, political and social development of countries. the three commonest micronutrient deficiencies belong to iron, iodine and vitamin a.  methods: we conducted a systematic review of published english articles in the middle east countries using databases from pubmed, world health or...

More than 60% of the adult US population now meets the criteria for being overweight or obese. Gastric bypass surgery has become a popular and effective way to combat this medical problem. Despite the success of these procedures, they are associated with many complications, including malnutrition, neurological compromise, and vitamin deficiency. Research has determined that even with multivitam...

Vitamin A and D deficiencies and insufficiencies are prevalent worldwide in developed and developing countries. Vitamin metabolites are functionally intertwined in that they are high-affinity ligands for related receptors of the nuclear receptor superfamily. The effects of vitamin A deficiencies (VAD) on antibody responses to respiratory virus vaccines have already been demonstrated. Of particu...

BACKGROUND Deficiencies of vitamin A, iron, and zinc are prevalent worldwide, affecting vulnerable groups such as lactating women and infants. However, the existence of concurrent deficiencies has received little attention. OBJECTIVE The aim was to investigate the extent to which deficiencies of vitamin A, iron, and zinc coexist and the nutritional relation between lactating mothers and their...

Vitamin and mineral levels were determined in the eggs of ostriches and compared with poultry standard values as an indicator point. Deficiencies or excesses of vitamins and/or minerals in the laying hen, and thus in the egg, can lead to infertility, poor hatchability and early chick health problems. Specifics are described. Also, information on vitamin and mineral deficiencies is given.

B vitamins are the precursors of essential metabolic cofactors but are prone to destruction under stress conditions. It is therefore a priori reasonable that stressed plants suffer B vitamin deficiencies and that certain stress symptoms are metabolic knock-on effects of these deficiencies. Given the logic of these arguments, and the existence of data to support them, it is a shock to realize th...