Background
: There are some reported cases that diet damages the health in adolescent. So we examined the weight and height in adolescent(12=19 years) and investigated the correlation between diet and related factors.

Methods : The relationship between diet and age, sex, height, weight, preferred weight, body mass index, size judgement, percieved overweight was examined in a survey of 570 Incheon schoolchildren from six age groups.

Results : Our results had correlation between diet and body mass index or size judgement. In women, diet correlates with weight, size judgement, perceived overweight(P<0.05). In men, diet correlates with body mass index, size judgement, perceived overweight(P<0.01). Diet do not correlates with age, sex, height, preferred weight.

Conclusion : Diet is significantly correlated with body mass index, size judgement, but not correlated with age, sex in adolescent.