Do more dairy
Women who ate low-fat dairy products, such as nonfat yogurt and low-fat cheese, three to four times a day lost 70 percent more fat than low-dairy dieters, according to a study published in the journal Obesity Research. "Calcium serves as a switch that tells your body to burn excess fat faster," explains study author Michael Zemel, M.D., director of the Nutrition Institute at the University of Tennessee in Knoxville. Sorry, but you won't reap the same benefits from calcium-fortified O.J. Research shows that you get the best results from dairy products themselves, not fortified foods. Aim for 1,200 mg, which includes about three servings of dairy a day.
Take up a new sport
Are you like Old Faithful when it comes to your morning walk or evening jog? Know this: The more you do an activity, the more your body adapts to it, so you burn fewer calories. If you want to light a fire under your metabolism, consider cross-training. For example, if you normally walk, try biking instead. "Since you're not used to working all those different muscles, it's a more intense workout, which can translate into a greater metabolic after-burn because your body is working harder to recover and get oxygen to all your tissues," says Carol Espel, M.S., an exercise physiologist for Equinox Fitness Clubs in New York City.
Break out the lemon wedges: Regular fish eaters tend to have lower levels of the hormone leptin -- good because high levels of leptin have been linked to low metabolism and obesity, says Louis Aronne, M.D., an obesity specialist at the New York Presbyterian Weill Cornell Medical Center. Try to consume three to four servings of a fatty fish, such as salmon, tuna or mackerel, each week.
Stress may contribute to abdominal fat, according to several studies, including a recent one at the University of California, San Francisco. "When you're stressed, hormones like cortisol stimulate your appetite, slow your metabolism down and encourage fat storage inside your abdomen," explains Shawn Talbott, Ph.D., director of the Nutrition Clinic at the University of Utah. So what's a frazzled girl to do? "Find an activity that reduces stress for you, whether it's listening to soothing music or taking yoga, and do it daily," advises Talbott.
Read more: 21 Ways to Burn Fat Faster - Redbook