Probiotic drinks, brain-boosting superfoods, gut-healthy snack bars: every day we’re bombarded with information about what and what not to eat. Some foods move abruptly between these categories depending on who you ask: if a gut-healthy snack bar is ultra-processed, does that cancel out its benefits? You’d be forgiven for thinking that every food choice you make has immediate, direct consequences for your health. And, increasingly, your brain. Does broccoli make you brighter? Can a pickle really act as a pick-me-up? There is some scientific truth to this magic. By now you may have heard that people with poorer mental health
