In what way, more efficient? From pizza stuff and chocolate, respectively. Not as mind-blowing as one would expect. However... There have also been talks about 3D-printing human organs for replacement purposes, done with actual tissues. While imperfect, it builds path for building food out of basic materials. The difference between alchemy and this is that you start with gold rather try to turn it around. Or lead, if that's what you're aiming for. Boron. Whatever your heart desires. Then share your secret. I find it an extremely expensive lifestyle to maintain, financially, and I don't even buy this much meat to begin with. For the same price, I can get a kilogram of chicken breasts, which allows me a few meals, each a few days' worth of nutrition when mixed with grains - or I can get a day's worth of assorted nuts. And don't even get me started on bulgur and shit. it will have to more efficient then normal meat in its energy consumption to compete with normal meat.
What do you mean print a pizza and chocolate ? from what ?
I also save money sticking to this diet.