Pregnant women will be asked to consume dietary supplements (2 capsules, from the Pennington Biomedical Pharmacy) each day during pregnancy. They will begin taking the capsules around 17 weeks of pregnancy and take them each day until their babies are born. Women will be randomized to one of two groups. Randomization means they will be put into a group by chance, similar to flipping a coin. One group, the placebo group of the study, will take capsules containing oil '1 ' which is a mixture of corn and soy oils . The other group, the supplement group, will take capsules containing oil '2' which is an algal oil. Both oils are found in our diets. Neither the subject nor the study staff will know which group women are in.