The way our food is grown, transported, processed, marketed, and ultimately eaten is not sustainable — for the environment or our health. Diet, together with a sedentary lifestyle, cause obesity, diabetes, heart attacks, and cancers that result in several hundred thousand deaths each year. Raising livestock uses enormous amounts of energy to grow and transport feed; cattle feedlots stink up vast areas; and the animal manure often pollutes waterways. The animals generally endure miserable conditions, as do the packinghouse workers.