So, we are worried about our diet and eating healthier foods. Think about those who have to rely on handouts. They do get food but often it is very unhealthy. Here is an interesting article about Doctors "prescribing" fresh produce. They only way they can do it is with a partnership with the local food bank... and the local food bank needs help from others.
Or you can find a farmer who wants to farm in the inner city, no, really! You can read about a 1.3 acres working farm in the middle of Indianapolis that helps people who live in a food desert. This farmer turned over half of his 36 acre farm over to his non-profit and raised 420,000 lbs of food for the people who are food insecure. While I worked for Wheat Ridge Ministries (who has given grants to congregations to start community gardens) I visited various churches who provided produce for the local food bank. One, St John Lutheran in Napa, CA is serious about the project and at 15,000 lbs per year is the #1 provider of fresh produce for the local food banks.
See what is happening in your area and perhaps your church could help... Lots of churches are realizing how much grass they cut each week and turning some of it into gardens for local food needs.