Originally Posted by EnderWiggin
If we're the primary consumer, we can use about 10% of the grain's energy for our own body's processes.
If we're a secondary consumer (ie cow eats grain, we eat cow) then we only get 10% of the cow's energy. That's only 1% of the grain's energy potential.
So yes, it's 10x more efficient to feed people grain.
Except unlike the cow, people can't survive on grain alone.
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