He holds a silver tin of emerald-green spinach that could also be a pot of money.

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Pratt lists salmon, broccoli, spinach, berries and green tea as a few of his favorites.

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If you can only eat one vegetable, make it a leafy green like spinach or kale (each 13 cents per oz.).

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Palm Greens went so far as to create a smoothie called the "Bradley's Ultra Green" which includes spinach, kale, mint, ginger, probiotic, bananas, aloe vera, apple juice and Spirulina.

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In particular, it is important to regularly consume dark green leafy vegetables including spinach, romaine lettuce, or kale which are good sources of vitamin K, E, and C, as well as beta-carotene rich, orange-colored vegetables such as carrots, sweet potatoes, and squash.

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Dark green leafy vegetables like kale, romaine lettuce and spinach, which are good sources of vitamin E, seem to be particularly important in protecting your brain.

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