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A study in Denmark found that taking fish oil supplements during pregnancy possibly decreased the risk of wheezing disorders in children.
The study observed 736 pregnant women in their third trimester, with one group taking 2.4 grams of fish oil (15 to 20 times more than what most Americans consume) and another group taking a placebo. Researchers conducted follow-ups three years after the babies were born and then again two years after.
Results showed that of the children whose mothers took the fish oil supplements, 16.9 percent had asthma by age 3. By comparison, 23.7 percent of children whose mothers did not take fish oil developed asthma during the same time period.
