During pregnancy, we already know that a mother's diet can have an impact on their pregnancy. According to a Time magazine briefing, the babies of pregnant women who consumed fish oil during pregnancy were healthier than those who did not. For the study, researchers randomly gave 1,000 pregnant women daily supplements to take, some placebo and some fish oil. Once the babies were born, they were evaluated at 1 month, 3 months and 6 months. At 1 month, the babies who's mothers had consumed fish oil were a whopping 24 percent less likely to have cold symptoms, such as coughing and nasal congestion than those who didn't. At 3 months the babies were 14 percent less likely to be sick. At 6 months, the babies weren't less likely to get sick, but the colds didn't last as long.