cheers to vegans

This fact lends more credence to the advantages of a vegetarian diet. 
For example, 1350 kilograms of corn and soybeans is capable of supporting one person if converted to beef. However, 1350 kilograms of soybeans and corn utilized directly without converting to beef will support 22 people --> (link below )

At each level of the food chain, about 90% of the energy is lost in the form of heat

http://www.earthonlinemedia.com/ebooks/tpe_3e/biogeography/trophic_levels_and_food_chains.html
http://utahscience.oremjr.alpine.k12.ut.us/sciber08/8th/bio_ener/html/enrgyflo.htm