He says "no coffee". Apparently it's neither natural enough nor "pure brain-food" enough.
Piracetam is another popular nootropic. It's cheap, well-studied (as nootropics go, anyway), and probably pretty benign.
My unrequested advice is that if you're thinking about taking nootropics, you should probably make sure you're eating reasonably well and getting enough sleep and exercise first. Then consider the trade-offs.
