So you’re at the deli counter and ready to order a sandwich. Your stomach’s grumbling for turkey and provolone on whole wheat, with lettuce, tomato and…mayonnaise or mustard? Let’s explore the two condiments.
Basic mayonnaise is a mixture of egg yolk, oil and a bit of lemon juice or vinegar. Mayo is virtually all fat, with the egg yolk providing artery-clogging saturated fat. One tablespoon of regular mayo packs around 90 calories, mostly coming from 10 grams fat (3.5 g saturated fat). Light mayonnaise totals only about 35 calories per tablespoon, with 3 grams fat (0 g saturated fat).
Whether it’s Dijon, honey or deli style, mustard is prepared from the seeds of a mustard plant, blended with spices and vinegar. Mustard is relatively harmless at less than 30 calories per tablespoon and no saturated fat.
So it seems obvious that mustard is a healthier choice than regular mayo, but why not choose light mayonnaise? Some foodies shy away from reduced fat products because added ingredients make the item more processed and less natural. Maybe it’s best to use the real thing, but sparingly? (I’m undecided.) If it’s between regular, full-fat mayo and mustard, go with the mustard. A teaspoon or two adds strong flavor, but negligible calories to your sandwich.