• Anti-oxidants
• Fatty fish with omega-3 fatty acids
• Water-soluble fiber in oats and barley
• Nuts
• Probiotics

They’ve all been shown to improve your blood lipid profile and help prevent heart disease.

Now Swedish researchers, writing in the journal Nutrition and Metabolism, prove that they make you smarter, too.

The scientists gave subjects a heart-healthy diet with these food components, then compared them to subjects eating a diet with identical ratios of carbohydrates, fats and protein but missing these healthy additions.

After only four weeks, the group eating the nutritionally enhanced diet performed better on tests of brain function.

Looking for extra brain power? Start with your dinner plate.