Background: Animal models and observational studies have suggested a favorable role of vitamin D in male reproduction. However, randomized clinical trials investigating the effect of vitamin D supplementation on male fertility are limited. Therefore, this study aimed to examine the effect of vitamin D supplementation on semen quality, reproductive hormones, and anthropometric measurements in vi...

vitamin b12 (cobalamin) is an essential coenzyme for nucleic acid synthesis. animal protein is the major dietary source of vitamin b12. deficiency of vitamin b12 leads to megaloblastic anemia, degeneration of the brain, spinal cord, peripheral nerves, and abnormalities of epithelial tissues. two factors are necessary for the cure of megaloblastic anemia: one in food (extrinsic factor) and one i...

Background. Exercise has significant affects on free radical production. Objective. The objective of the present study was to explore the effect of vitamin C supplementation on lipid peroxidation and lactate levels in sedentary individuals who performed exhaustion exercised. Methods. 10 healthy sedentary male athletes participated to study. They were supplemented with 300 mg oral vitamin C (L...

vitamin d is important for the development, growth, and mineralization of the skeletal in neonates and children. vitamin d is essential for intestinal absorption of calcium. vitamin d is metabolized to 25-hydroxyvitamin d and then to 1,25-dihydroxyvitamin d. pregnant women in developed countries often have insufficient serum concentrations of 25-hydroxyvitamin d and a supplementation of vitamin...

Background. Even though immunisation coverage is tracked through the district health system in South Africa (SA), limited information available regarding interventions linked to Expanded Programme on Immunisation (EPI) and impact nutritional status of children <5 years age. 
 Objectives. To describe immunisations, vitamin A supplementation deworming among old an urban area Nelson Mandel...

background: migarine is the most common headache around the world including iran. in recent years, vitamin d deficiency has been shown to a global health problem. a few studies have been determined inverse association between serum levels of vitamin d with a headache. so, in this study, we investigated the effect of vitamin d supplementation on symptoms and c-reactive protein(crp) among patient...

conclusions vitamin d repletion for 12 weeks increased serum vitamin d concentrations and improved β-cell activity in vitamin d-deficient type ii diabetes with no significant changes in hba1c or insulin sensitivity. results median [iqr] 25(oh)d levels increased significantly in the vitamin d group as 58.1 [48, 67.3] nmol/l (p = 0.002). there was no significant difference in the change of hba1c ...

background: iron deficiency anemia is one of the major causes of morbidity and mortality worldwide. evidences from epidemiological and clinical studies suggest a possible correlation between antioxidant levels and the anemic disease risk. the present work is to investigate antioxidant levels and lipid peroxidation in anemic patients. methods: a number of 30 patients (15 males and 15 females) we...