Recent studies in Barcelona and Japan point to the same thing - mom’s fish intake during pregnancy determines baby’s brain development. Pregnant mothers who included more fish in their diet had children with better brain function. Seafood has important nutrients and omega-3 and 6 required for brain development. The standard recommendation is 150-600 grams of fish a week for pregnant women. Although seafood comes with the threat of mercury poisoning, the study conducted in Barcelona among 2,000 mothers proves differently.