I live in a city with a 1/4 acre plot (including my house's footprint). I have managed to grow a garden between my neighbor's house and my own that is about 8ft by 40ft. I picked up an old 1940's canner from Ebay and am able to can so much food from my garden that I have to give some away before the next year's harvest. One can only eat so many tomatoes. In the fall I get bags of apples given to me from people who would otherwise throw them away as yard waste. I turn some into applesauce and juice the rest. I drink it all year round. Over all, this process makes for a very busy couple weeks in August and September with another busy week in October. This process proves to be just a supplement to my food intake. Much of what I eat is still from the industrial complex. But the added bonus of this process is that it has given me a taste for "real" food and has made me more conscientious about what I eat. I read labels religiously now.