One of the biggest mistakes women make when trying to figure out how to lose belly fat: too many crunches, too little cardio. No matter how toned your abs are, your belly won't look flat until you get rid of the layer of fat on top of them, says Jessica Smith, a certified personal trainer and star of fitness DVDs. For that, you need to rev your calorie burn. Interval training, in which you alternate high-intensity bursts of activity with easier bouts, has been shown to zap more belly fat than steady-paced moderate workouts.
A 2018 study among more than 600 adults who were tracked for a year concluded that while there are different paths to weight loss, the advice to limit added sugars and refined grains, add more veggies to your plate, and eat more whole foods — in other words, focusing on the quality of your diet — is the way to go. People who followed this advice lost weight without worrying about calories.
Eat Breakfast Every Day. One habit that's common to many people who have lost weight and kept it off is eating breakfast every day. "Many people think skipping breakfast is a great way to cut calories, but they usually end up eating more throughout the day, says Elizabeth Ward, MS, RD, author of The Pocket Idiot's Guide to the New Food Pyramids. "Studies show people who eat breakfast have lower BMIs than breakfast-skippers and perform better, whether at school or in the boardroom." Try a bowl of whole-grain cereal topped with fruit and low-fat dairy for a quick and nutritious start to your day.