Use an adult energy needs calculator to estimate your calorie intake needs; then subtract the 500 to 1,000 calories for weight loss. For example, a 28-year-old woman who is 5 foot, 9-inches tall weighs 175 pounds and is lightly active -- less than an hour a day -- burns about 2,400 calories daily. She'll burn about 2 pounds of fat in a week if she eats 1,400 calories daily, or 1 pound a week if she eats 1,900 calories a day.
Although you do want to increase your walking over time, this doesn’t necessarily mean that you have to be working your way up to a more intensive form of cardio like swimming or running. “Moving on to new exercises is not something someone should feel they have to do unless their goals change and a new exercise is needed to support those goals,” says Gagliardi. “Walking alone can be progressed by changing the distance, speed, terrain, and by adding intervals.”
But you'll lose the most fat by doing HIIT, or high-intensity interval training. This training technique involves working at full throttle for short intervals -- typically 10 seconds to a minute -- then recovering at a slow pace or resting for a minute or two. It increases your metabolism after a workout, since your muscles need to work hard to get "back to normal." HIIT also burns more belly fat than traditional, steady-pace cardio, according to Penn State University.
Each slice of grapefruit you add to your salad acts like a match to spark your body’s fat-burning ability. A study published in the journal Metabolism found that those who ate grapefruit for six weeks lost a full inch off their waistlines. What’s behind the belt-tightening effect? The fruit is rich in phytochemicals, bioactive compounds that recent research shows stimulate the production of a hormone called adiponectin, which is involved in the breakdown of body fat. Japanese research suggests the smell of the juicy fruit can “turn on” calorie-burning brown fat cells, promoting the breakdown of body fat while reducing appetite.
Berries are packed with polyphenol antioxidants that will help burn fat—and prevent it from forming—as well as boost your workout benefits by improving blood flow to your muscles. According to a Texas Woman’s University study, mice that ate three daily servings of berries had 73 percent fewer fat cells. Pop some of the blue guys into your next smoothie and boost the fat-burning potential: blueberries are a potent source of resveratrol, an antioxidant which an International Journal of Obesity study showed could convert excess harmful white fat in mice into calorie-burning beige fat, which correlated with a 40 percent decreased risk for obesity. And when it comes to the sugar content in fruit, berries rank favorably on the list but are still a powerful way to curb cravings for sweets.