As long as you don't suffer from arachibutyrophobia (the fear of peanut butter sticking to the roof of your mouth), you certainly know the joy of p.b. and jelly squished between two slices of bread. It's one childhood indulgence nobody ever outgrows. And unlike other comfort foods, peanuts (which are legumes, not nuts) are good for you — they're packed with protein and fiber, plus vitamin E, niacin, copper, potassium, selenium, magnesium, and heart-healthy mono- and polyunsaturated fats.

Of course, if you don't buy natural peanut butter, that jar also contains traces of not-so-good-for-you trans fats. Read on for a taste test of the top three best-selling brands and the best-selling natural brand, followed by some peanut-butter facts and a sampler of lesser-known nut butters. Who knew jelly had so many options?