There are vegan sources of Omega-3 fatty acids, flax seeds being the most common. And yes, vegan mothers should pay attention to their diet, just like omnivore

There are vegan sources of Omega-3 fatty acids, flax seeds being the most common. And yes, vegan mothers should pay attention to their diet, just like omnivore mothers. "It is suggested that vegans and vegetarians should use oils with a low ratio of linoleic to linolenic acid in view of the recently recognized role of docosahexaenoic acid [DHA] in visual functioning. If known pitfalls are avoided, the growth and development of children reared on both vegan and vegetarian diets appears normal." http://ajcn.nutrition.org/content/59/5/1176S.short http://ajcn.nutrition.org/content/59/5/1176S.short