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Heavy junk food diets lead to lower IQ

Source:University of Adelaide Release Date:2012-08-09 190
Food & Beverage
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Study shows that children who were breastfed at six months and had a healthy diet at 15 and 24 months had an IQ up to two points higher by age eight

ADELAIDE – Children fed healthy diets in early age may have a slightly higher IQ, while those on heavier junk food diets may have a slightly reduced IQ, according to new research from the University of Adelaide. The study of more than 7000 children compared a range of dietary patterns, including traditional and contemporary home-prepared food, ready-prepared baby foods, breastfeeding, and 'discretionary' or junk foods.

Led by University of Adelaide Public Health researcher Dr Lisa Smithers, the study looked at the link between the eating habits of children at six months, 15 months and two years, and their IQ at eight years of age.

"Diet supplies the nutrients needed for the development of brain tissues in the first two years of life, and the aim of this study was to look at what impact diet would have on children's IQs," Dr Smithers said.

Children who were breastfed at six months and had a healthy diet regularly including foods such as legumes, cheese, fruit and vegetables at 15 and 24 months, had an IQ up to two points higher by age eight.

"Those children who had a diet regularly involving biscuits, chocolate, sweets, soft drinks and chips in the first two years of life had IQs up to two points lower by age eight.

"We also found some negative impact on IQ from ready-prepared baby foods given at six months, but some positive associations when given at 24 months," Dr Smithers said.

Dr Smithers says this study reinforces the need to provide children with healthy foods at a crucial, formative time in their lives.Air Jordan XI 11 Wool

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