Carbs get a bad reputation. The popularity of low-carb diets has led many people to limit them or cut out carbs altogether. But carbs are actually great brain food—when you choose the right ones.

Carbohydrates are your body's preferred energy source and are essential to a healthy diet. Although experts try to avoid ...

Of the three macronutrients, carbohydrates now receive most of the negative press. The last two issues of this column concerned fats and protein. For many years, fats were the bad boy of the three.