Fish and healthy pregnancy: more than just a red herring!
In modern Western diets we eat predominantly omega-6 essential fatty acids from vegetable oils, and too little omega-3. The Department of Health recommends doubling the amount of omega-3s we eat. Omega-3 essential fatty acids (EFAs) are derived mainly from fish oils. Omega-3s are believed to help reduce the risks of cardiovascular disease. Among the main materials required for fetal brain and CNS growth in late pregnancy are omega-3s (mainly docosahexaenoic acid [DHA]) and omega-6 EFAs (mainly arachidonic acid [AA]). These come from the mother's diet. Several formulae for preterm infants now contain DHA and AA to aid optimum brain, nerve and retinal development. One manufacturer has begun to include DHA and AA in formulae for term babies. Breast milk contains DHA and AA, derived from the mother's diet. Eating oily fish in pregnancy has been found to have a slight beneficial effect on birthweight and length of gestation. Eating fresh or canned oil-rich fish (e.g. kippers, herring, mackerel, salmon, sardine, pilchards, tuna) twice or three times a week can be encouraged as part of a healthy balanced diet, in pregnancy and for all the family. As well as containing omega-3 polyunsaturates, oily fish is a good source of protein and vitamins A and D. Alternatively, a fish-oil supplement may be taken. Cod liver oil is best avoided during pregnancy, because of concerns over the possible teratogenicity of vitamin A.
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Fish Foundation, Devon.
D000818:Animals; D004041:Dietary Fats; D015525:Fatty Acids, Omega-3; D005260:Female; D005399:Fishes; D006801:Humans; D018673:Nutrition Policy; D009751:Nutritional Requirements; D011247:Pregnancy
D004041:Dietary Fats; D015525:Fatty Acids, Omega-3