Production Efficiency: Soybeans produce more pounds of usable protein per acre of farmland than all other forms of complete protein. When comparing land impacted by production and end product, soy protein offers a protein solution that is 17 times more effective.
Energy Efficiency: A fundamental way to examine the environmental cost of food production methods is to evaluate the total energy use involved in production. Soy is an efficient source of protein based on return of energy use compared with proteins from other sources.
(via we-are-all-earthlings)
Source: veganhealth
