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(Yes, almost certainly.)

Regardless, these little powerhouses are packed full of protein, healthy fats — and may even improve memory, according to a 2015 UCLA study. The alpha-linolenic acid in walnuts, which is linked to lower blood pressure and cleaner arteries, is one of their secret ingredients.

Pairing walnuts with another brain-friendly food — spinach, which is full of brain-supporting vitamin K, lutein, folate and beta carotene?

It’s a tasty no-brainer.

Walnut and spinach pesto

Ingredients:

• 2 cups fresh baby spinach
• 1 cup basil
• 1 cup walnuts
• 1 cup Parmesan cheese
• 2 cloves garlic
• ¼ cup olive oil

Directions:

Place ingredients in blender and whirl until it reaches desired consistency — slightly chunky to smooth — adding more olive oil as needed.

Want an even bigger brain boost? Serve over oven-roasted salmon, which also has brain-supporting omega-3 fatty acids.