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Omega-3s are important during pregnancy, and pregnant women are recommended to eat fish in order to help them meet their nutrient needs. However, certain fish have a high content of contaminants, such as mercury, and can interfere with the optimal development of the baby. Here is more information on the subject so you can make informed choices!
Omega-3 fatty acids are considered essential because they must be consumed through food to meet the body’s needs. There are three types of omega-3 fatty acids, alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Omega-3s are particularly important during pregnancy and breastfeeding since they constitute key nutrients to support brain development in the fetus. Studies show that proper consumption of DHA during pregnancy can help reduce the risk of preterm delivery, low birth weight and perinatal death.
DHA and EPA are found in oily fish while ALA is found in certain plant foods. The following table presents the most frequently eaten fish which have a substantive content of DHA. It should be noted that some eggs are enriched in DHA and ALA and can thus provide an interesting amount of omega-3.
|Type of seafood (cooked portion)||DHA Quantity (mg)*|
|Atlantic salmon (120 g)||1748|
|Herring (120 g)||1326|
|Cod (120 g)||1104|
|Blue Mackerel (120 g)||839|
|Pink salmon, canned (120 g)||817|
|Sardines, canned in oil, with bones (106 g)||648|
|Rainbow trout (120 g)||624|
|Light tuna, canned (120 g)||235|
|Halibut (120 g)||186|
|Scallops (12 medium size)||162|
|Oysters (6 medium size)||124|
|Shrimp (various types), 12 medium size||84|
|Snow crab, canned (120 g)||79|
*Values calculated from the Canadian Nutrient File
Although there is no dietary reference intake (DRI) or adequate intake (AI) established for omega-3s, experts recommend an intake of 300 mg of DHA per day during pregnancy and breastfeeding. Major health organizations recommend that pregnant and breastfeeding women consume at least two servings per week of low-mercury fish as well as a DHA supplement of at least 200 mg per day.