If you have an appointment with psychiatrist Drew Ramsey, there’s no guarantee that you’re going to walk out of there with a bottle full of pills. Sometimes you’ll emerge with a recipe for a blueberry-avocado-kefir-nut smoothie. Or a shopping list for how to make kale pesto. Ramsey is leading the charge in a relatively new branch known as nutritional psychiatry. Physically, we can see the difference between someone with a good diet versus a poor diet, the external symptoms of nutritional deficiency are obvious, and so you don’t have to stretch the imagination too far to imagine the difference it might make internally, particularly to your cognitive abilities and your mental health.