This year the British Heart Foundation's Food4Thought campaign is tackling the threat of childhood obesity with the help of superstar street dancer Akai.
It's been shown obese children are more likely to become obese adults. And obesity in adults is associated with an increased risk of type 2 diabetes and heart disease.
We're encouraging parents, kids, teachers and politicians to all think carefully about the food the next generation are eating, and the amount of exercise they're getting each day.
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