Surprise, surprise! Mayonnaise is a condiment that easily packs on the pounds. It may add a bit of tang to your turkey sandwich, but is it worth the 10 grams of fat and 90 calories you get for every tablespoon? Probably not. If mayonnaise is a must in your house, make the switch to a low-fat version. Otherwise, try to substitute it with mustard.
Flickr user little blue hen