The United States Government has a well intentioned program, the National School Lunch Program.
The problem is, as your grandmother told you "the path to hell is paved with good intentions.
It turns out the government programs for healthy eating are associated with increased childhood obesity.
So basically we are wasting tens of millions in tax dollars employing hundreds of federal bureaucrats and the sum of all of this government spending is achieving nothing. Kids who don't participate in the program don't have higher rates of obesity than kids that do.
So why not get rid of the program because parents seem to be producing results on their own that government can't improve on, and if we end the program we won't waste the tens of millions accomplishing NOTHING! ]
Here are the abstracts of the two studies
Benjamin Campbell et al.
American Journal of Agricultural Economics, July 2011, Pages 1099-1130
Abstract: The National School Lunch Program’s effect on children’s diets has been
extensively studied. Results have tended to be inconclusive regarding the effectiveness of the program. Utilizing more specific treatment groups, we find that participants in the National School Lunch Program do not consume a higher-quality diet at lunch than children choosing not to participate, even though the program is offered — but rather consume a higher quantity of foods while consuming similar amounts at other meals. Furthermore, children attending schools not participating in the National School Lunch Program have dietary outcomes that are not significantly different from program participants.
Abstract: In this paper, we study the impact of child care subsidy receipt on low- income children’s weight outcomes in the fall and spring of kindergarten using data from the Early Childhood Longitudinal Study, Kindergarten Cohort. Our results suggest that subsidy receipt is associated with increases in BMI and a greater likelihood of being overweight and obese. Using quantile regression methods, we find substantial variation in subsidy effects across the BMI distribution. Specifically, child care subsidies have no effect on BMI at the lower end of the distribution, inconsistent effects in the middle of the distribution, and large effects at the top of the distribution. Our results point to the use of non-parental child care, particularly center-based services, as the key mechanism through which subsidies influence children’s weight outcomes.