USDA Supporting Obesity?

Not so, says this study:

A careful examination of the linkages between farm policy, food prices, and obesity in the United States demonstrates that U.S. farm commodity subsidy policies have had very small effects on obesity. This finding is driven by three key factors. First, with a few exceptions, farm subsidies have relatively small and mixed impacts on prices of farm commodities in the United States. Second, the share of the cost of commodities in the cost of retail food products is small, and continues to shrink over time. Third, food consumption patterns do not change substantially in response to small changes in food prices.

I don't expect the food movement to change their views; it's very hard to correct errors.