1. Source: http://www.foodforthebrain.org/smart-kids/how-to-build-a-healthy-brain.aspx#eef
2. Source: http://www.nhs.uk/Livewell/Goodfood/Pages/fish-shellfish.aspx
3. Source: http://www.whattoexpect.com/toddler-nutrition/brain-food-for-kids.aspx#