Interesting proposition...<p>I grew up in a health-food family-religious culture and didn't find that it helped me much.<p>In fact later on I found that sweet things really seem to help my productivity sometimes. I went all Warren Buffett on my diet and lost 36% of my body weight by eating meals that were just a handful of chocolate bars, things like that. At a certain level of cutting for extreme weight loss, it's important that food can be reverse-psychology, pouty food if it needs to be.<p>Overall the best thing I do for productivity is prepare my meals (completed projects) in advance. It's a metaphor but that's the most direct path I can draw from food to creativity.<p>I feed on completed-project energy, so I prepare my stages, communications, and techniques in advance and keep them ready in an organizational system.<p>This prevents me from overeating (workaholism) and emotional eating (procrastination).<p>OK my metaphor is breaking now. :-)<p>Chemicals & hydration, ergonomics and own-software though...those seem like another matter and really do seem to help with productivity.<p>I also like veggies while on a cut. I love how much cabbage I can eat. Pickles, cabbage, cauliflower...OK the latter makes me want to hurl these days but I used to eat a LOT of that...<p>How about you? What is really helping your brain these days and what's that feel like?