You are what you eat, the saying goes, and now a study suggests that the oft-repeated adage applies not just to physical health, but to brain power as well. Researchers compared the fatty acid profiles of breast milk from women in over two dozen countries with how well children from those same countries performed on academic tests. Their findings show that the amount of omega-3 docosahexaenoic acid (DHA) in a mother's milk is the strongest predictor of test performance. It outweighs national income and the number of dollars spent per pupil in schools.
