"It is not widely understood how much more energy, land, water, and other resources are required to produce animal foods versus plant foods. In California, for example, it takes roughly 25 gallons of water to produce a pound of lettuce, tomatoes, potatoes or wheat; 49 gallons for apples; 815 gallons for chicken; 1,630 gallons for pork; and a whopping 5,214 gallons of water for a pound of beef. You would save more water by not eating one pound of California beef than you would by not showering for six months."