Eating unhealthy food, could lead to poor academic performance and behaviour in students, finds a new study.
The researchers were astonished to see that the inspection ratings soar when these fatty foods were replaced with a healthy eating regime.
The study serves as a blessing in disguise for students as well as parents who can now find the secret to good grades in their own kitchens, reports the Daily Express.
It showed that serving fresh food instead of harmful "trans fats" found in most processed foods had a quick effect on pupils' academic achievement and behaviour.
"Very quickly they found that serving a child good food at lunchtime makes them four times more likely to concentrate in the afternoon," said Emma Noble, director of Food For Life Partnership (FFLP).
FFLP director Libby Grundy was delighted at the link between performance and diet in children but was worried that cuts to local authority school meal budgets may see the reintroduction of ready meals in schools.
"With one in 10 children classed as obese just as the programme looks as if it has reached the tipping point, cuts to school meal budgets could undo all the good work," she explained.