Sorry but neither of those things somehow render the foods and chemicals we ingest meaningless! Nobody's saying that. The things we ingest have a profound

Sorry but neither of those things somehow render the foods and chemicals we ingest meaningless! Nobody's saying that. The things we ingest have a profound influence on us. However, the connection between our brains and the things we inject is extremely circuitous. "Reasonable connections" often don't apply, and things we do might often have the opposite effect of the one we intend. All that said, I think personal experimentation with supplements (within safe limits) is a very good thing. I have tried a bunch!