Some coffee, butter, and oil gives you a similar feeling to amphetamines? I don't suppose you've blind-tested any of it?
I have no experience with Adderall, but when I tripled my fat intake, I did notice diminished mind-fog before I knew people claimed it had positive cognitive effects.
I have often benefited from recommendations for Things I Didn't Know I Wanted.
Given that Less Wrong is a community of unusually intelligent, critical, and self-improvement-focused people, I suspect we can generate a pretty helpful thread of product recommendations — perhaps even a monthly thread of product recommendations.
Rules: