Comparative studies on brain health supplements needed

This article does a pretty good job of listing all of the various diets that are "good" for your brain and explaining why each of them work. Here are all of the particulars mentioned: boosting vitamin and mineral intake, increasing the time interval between meals, rosemary herb, alpha-lipoic acid, acetyl-L-carnitine, omega-3's EPA and DHA, calorie restriction, intermittent fasting, turmeric (which contains curcumin), physical exercise (especially if it's fun), meditation, lifestyle changes to reduce stress, and generally anti-oxidant rich foods.

That is just one article (what about blueberries?), and that is just for the brain. But what if you want to have a healthy heart, or a healthy liver? Well there's also a bunch of stuff you need to eat for that.

I'm sick of hearing what's good. I have a limited amount of time, a limited amount of money, and a limited amount of mental effort I'm willing to spend planning my diet. From now on, I want to hear about what is best.