Starting at 29 weeks pregnant and again at delivery, researchers measured the diets and blood levels of omega-3 and omega-6 in 1,250 women, average age 32.
Three years later, scientists measured the thickness of the fat layer (adipose) directly beneath the children’s skin.
Children whose moms got at least 1,160 mg of omega-3s per day, including EPA, DHA and ALA, or who ate two servings of fish per week, were 23 percent and 47 percent, respectively, less likely to be obese than kids whose moms got less of these nutrients.
When blood levels of omega-6 were too high compared to omega-3 at delivery, kids were more likely to be obese by age three.