How important is it for an infant to be given a DHA-containing infant formula if the mother cannot breastfeed?

The American Dietetic Association and the Dietitians of Canada have recommended that all infant formula should provide DHA during the first year of life to infants who are not being breastfed for whatever reason. In 2008, the World Association of Perinatal Medicine Dietary Guidelines Working Group advised that DHA should be present at 0.2-0.5% of total fat in infant formula if breastfeeding is not possible.