> To my utter surprise, something as stupidly simple as coffee blended with butter with coconut oil (or MCT) first thing in the morning did unbelievable things for mental productivity.
Eat food. Mostly plants. Not too much. If that doesn't work for you, talk to a doctor.
Not helpful. Michael Pollen's pithy advice is a rather trite and even he will say it's misleading adage. For example, if one ate mostly starchy or sugary plants, they'd probably be a lot less healthy than someone who ate mostly wild game and greens. Nutrition is incredibly complicated and variable.
Eat food. Mostly plants. Not too much. If that doesn't work for you, talk to a doctor.