Do provided school lunches lead to obesity in children?

1. obesity

1.1. unhealthy

1.2. fatness

1.3. "fat intake"

1.4. "risk factors"

2. children

2.1. kids

2.2. "school children"

3. "school lunches"

3.1. sugar

3.2. snacks

3.3. nutrition

4. "obesity in children"