Maybe it was when Wal-Mart started carrying organic produce, or perhaps it was the introduction of organic Cheetos. Whatever the catalyst, the term organic no longer carries the same cachet it once did. Now, ethically minded foodies, farmers and chefs are looking more closely at "biodynamic" practices to maximize the quality of produce while maintaining a healthy relationship with the earth. Based on principles espoused by Rudolf Steiner in the mid-1920s, biodynamic farming is like organic farming in that it eschews the use of pesticides and herbicides, but takes it one step further by incorporating a spiritual element. Astrological timetables are used to determine optimum planting and harvesting times, and cow horns are filled with manure and buried in the earth to improve the soil. If Whole Foods had a location at Stonehenge, this is what they would stock. —Chris Johns