Permaculture

Transparent food production. Free from chemicals. Do it yourself. 
To produce enough food for a 4-strong family, only about 0.2-0.4 acres of land required. Instead of the monoculture, cultivating the holy trinity of wheat, maize and rice, mankind should focus on a more balanced diet. Practicioners of permaculture recommend a list of at least 40 different plants. Doing gardening has other advantages, like building communities and eliminating the need of exercises. If you add a couple of hens and a goat for cheese, you can provide a variety of protein source, too.