Nutrition does effect cognition: malnutrition, skipping breakfast, lack of home cooked meals, lack of breastfeeding all can have negative associations. See below: <br><br>1) Nutrition and Children’s Intelligence Quotient (IQ): Systematic review - 2014 Hasanain Faisal Ghazi<br><br>2) The role of nutrition in children's neurocognitive development, from pregnancy through childhood - Literature review - 2013 - Anett Nyaradi