You are what you eat. We’ve known this for a long time. Michael Pollan’s observation took it a step further: you are what what you eat eats. This is especially relevant when choosing grass-fed versus grain-fed beef, or wild versus farmed salmon, for example. A growing awareness of nutrition and neuroscience is helping us understand just how important what you eat (and what what you eat eats) truly is, even if Hippocrates said ‘all disease…