is it more efficient for people to eat plant products or animal produts? why?

Answer 1

Efficient for the environment or for people?

Answer 2

for people

Answer 3

http://www.jiskha.com/display.cgi?id=1220809803.1220810284

Answer 4

Here is an interesting article from a scientific source: EArly humans scavanged for meat.
http://www.americanscientist.org/issues/pub/2002/11/a-worms-view-of-human-evolution/2

Answer 5

Is it more efficient for people to eat plant products or animal products? Why?