This is an interesting post on an economic analysis done by two USDA economist on the consumption effect on fruits and vegetables given a 10% subsidy.
The author makes the following interesting statement:
Last but by no means least, I don’t think it makes a ton of sense to talk about subsidizing fruits and vegetables without talking first about un-subsidizing corn, soy and the corn ‘n soy derivatives that artificially drive down the price of Fritos and Big Macs. The policy argument for subsidizing healthy eating is convincing enough to me, but obviously is going to fly in the face of widely held anti-paternalist sensibilities. The case against subsidizing unhealthy eating, by contrast, is totally unimpeachable.
The entire post and responses: