Fish oil Supports Brain Development, and Visual and Nervous System Function. Nordic Naturals Children's DHA is a small, chewable cod liver oil supplement flavored with strawberry essence. Children's DHA is a delicious way for children to supplement their diet with the essential brain nutrient, DHA. Molecularly distilled for purity, Children's DHA contains only naturally existing vitamins A and D. It is recommended for children 3 and up, but under the advice of my naturopath I give it to my daughter in a half dose. I tried them and they do taste like strawberry. I want to give her brain/ visual and nervous system function every boost I can safely. She eats well, but doesn't get enough DHA in a week.