I think educating the low-income consumer to understand the value of organically grown and locally grown produce to make them aware about the nutritional deficits of industrially grown food, and the health detriments of eating over processed food. Emphasize quality not quantity(Americans eat too much of the wrong stuff). Once you educate the consumer, they will want to buy locally grown, direct from the farmer and be willing to pay more for it than the junk food. This coupled with acceptance of food stamps will enable farmers to sell to low-income customers.

I had a thought of a program that placed produce grown by market gardeners (maybe an association of these) in neighborhood grocery stores in under-served areas, coupled with lots of outreach in the neighborhood to educate about the benefits of fresh, local food. I don’t know f it would work, but it might. There is a feasibility study opportunity here somewhere.