Hold the mayo (and other sandwich tips)

5 calorie-saving tipsDitch the mayo: Save 180 calories.

Substitute low or no-fat Greek yogurt for mayo: Save 165 calories and about 20 grams of fat.

Cut out bacon: Save 150 calories (but, really, who would want to do that?).

Ask for one slice of cheese instead of two: Save 100 calories.

Go open-face: Save 100 calories.

Use antioxidants to send your sandwich's nutrition through the roof. Here are some tips:

Look for color. The darker or more vivid, the more nutritious your choice.

Slip in yellow or red peppers. They have twice the level of vitamin C as green peppers.

Top with sprouts. They're a powerful source of protein and vitamin C.

Include chile peppers. These peppers, which fuel the fire in cayenne pepper, may also have an effect on appetite. Some studies have found that people who eat meals with plenty of this spice feel less hungry as a result.

Sprinkle in cilantro. Technically a dark, leafy vegetable, it has beta carotene and plenty of vitamins, including A and K. It also contains a natural antibiotic, which may help in warding off illness.