Daily consumption by women of 600 milligrams docosahexaenoic acid (DHA) -- an omega-3 fatty acid found in prenatal vitamins fish-oil supplements and fish -- can prevent high blood pressure in their children caused by obesity suggests a study. Prenatal DHA exposure appears to programme the developing foetus to be protected against the blood pressure elevating effects of obesity in childhood said Susan Carlson Professor at the University of Kansas. To better understand the team included over 170 women with low-risk pregnancies in the clinical trial and the children were followed through up to six years. Half of them were randomly