27 January 2017
22 October 2014
The study analyzed data of the US National Health and Nutrition Examination Survey (NHANES) to investigate a potential association between serum vitamin B12 and folate concentrations and intakes of B vitamins with body fat by in 1131 Mexican American children between 8 and 15 years of age (1). The data showed that participants with higher blood concentrations of vitamin B12 and folate as well as participants with increased intakes of thiamine, riboflavin and folate had a significantly lower risk of developing obesity.
The researchers commented that the findings for intakes suggest that some B vitamins may play a role in the development of fat cells (adipogenesis) through their important roles in energy homeostasis, thermoregulation, and bio-energy metabolism. B vitamins generally are required for metabolism of fats and carbohydrates and for improving lipid and lipoprotein metabolism. Deficiencies in B vitamins may affect energy metabolism, leading to increased production of reactive oxidants and increased inflammatory responses, and may also promote fatty acid production (lipogenesis), leading to increased adiposity (2). A number of earlier studies already reported an association between adiposity and both serum concentrations of vitamin B and intake of B vitamins among children (3, 4). The new results, if further confirmed, could have important implications for the development of interventions that more effectively reduce childhood and adolescent obesity in populations such as Mexican American children who may be at a greater risk of obesity, the scientists concluded.
27 January 2017
18 July 2014
According to a new review from Iran significant increases in blood vitamin D concentrations are achieved with daily supplement doses of at least 800 IU for a minimum of 6 to 12 months.
13 April 2012
A new review says that supplementation with omega-3 fatty acids does not seem to reduce the risk of cardiovascular events and mortality for patients with a history of cardiovascular disease. Experts criticize that the review did not include many studies that showed a preventive effect.