How much more do you need to eat than if you were to smoke? I really don't like smoking it because of the carcinogens it puts in your lungs, yet I don't want to waste all my weed. How much more do you need to eat to get high?
Research has shown that smoking pot does not cause lung cancer. About a gram would work fine, though.
But to answer your question on eating it. I usually put half an O per batch of brownies I make. You'll be nice and blazed outta your mind.