News
Genes may play a role in vitamin D deficiency
10 June 2010
Gene variants may indicate a risk of having low levels of vitamin D, suggests a new study.
07 September 2015
Obese individuals typically present raised levels of the blood vessel-constricting protein endothelin ET 1, which has a range of serious negative effects on their cardiovascular health. A new study has found that normal ET 1 levels can be restored with a three-month daily dose of 500 mg vitamin C.
Elevated levels of the blood vessel-constricting protein endothelin ET 1 are found in the blood vessels of obese people. This restriction of blood flow increases the individual’s risk of vascular disease. ET 1 increases pulmonary hypertension and has many other negative effects on cardiovascular health, such as platelet activation, stimulated production of free radicals, pro-inflammatory actions, and mitogenesis (1).
ET 1 activity can usually be reduced by taking regular exercise. However, this can be difficult or impractical for some severely obese people and indeed it is reported that more than half of obese individuals in the USA do not take regular exercise.
A new study by Dr Dow of the University of Colorado Boulder, CO, involving a cohort of 35 sedentary, obese adults has found that supplementation with a daily intervention of 500 mg vitamin C (in controlled release form) over three months helps to restore normal ET 1 levels. It is therefore suggested that daily supplementation with a high dose of vitamin C would be of benefit to obese individuals who are unable to undertake regular exercise.
10 June 2010
Gene variants may indicate a risk of having low levels of vitamin D, suggests a new study.
24 April 2015
In 2013, a paper from Brasky et al suggested a link between intake of marine omega 3 fatty acids and the risk of developing prostate cancer. A new, comprehensive meta-analysis from Alexander et al which included studies using both self-reported dietary intake and biomarker studies did not support an association between marine omega 3 fatty acid intake and prostate cancer.
23 July 2012
According to a new systematic review, milk and cereal products fortified with iron and a combination of other micronutrients, such as vitamin A and zinc, are more likely to help reduce iron-deficiency anemia in children than foods fortified with iron alone.