[xx] The amount of water, land and fuel used for differing diets varies greatly from the types of foods consumed, amount consumed and the geographical region where the food was raised. Taking into consideration that 1lb of beef requires upwards of 2500 gallons of water to produce compared to only 25 gallons for 1lb of wheat, the water footprint of a person consuming a high meat diet could be 100x greater than that of a person consuming only plant foods. The same applies for land and oil use. Many arid areas of the world can not support 1 cow per 2 acres and require 50+ acre per cow, compared to a crops such as potatoes that can produce 50,000lbs+ per acre. The energy/fuel inputs are similar. 1 calorie of beef can take 27x more energy to produce than soybeans.