David Perlmutter said this quote

The best diet for overall health, and specifically for heart, brain, and cancer risk reduction, is a diet that's aggressively low in carbohydrates with an abundance of healthful fat, and this is the central theme of 'Grain Brain.'

~ David Perlmutter

Fat is your friend. The brain thrives on a fat-rich, low-carbohydrate diet.

~ David Perlmutter

Shoot for a total of no more than 80 grams of carbs in your daily diet. This means favoring vegetables that grow above ground like kale, broccoli, spinach, and cauliflower as opposed to those that store carbohydrate in the form of starch like potatoes and beets.

~ David Perlmutter

The Mediterranean diet is rich in fruits and vegetables while low in sodium. It is also enriched with olive oil, high in antioxidants as well as monounsaturated and polyunsaturated fats.

~ David Perlmutter