Pace around your office while talking on the phone or run into the bank to cash your check instead of using the drive-thru. When researchers at the Mayo Clinic fed a group of volunteers an extra 1,000 calories a day over the course of eight weeks, they found sedentary individuals gained eight times more weight than those who fidgeted a lot during the day.
Craving something sweet? This fruit — along with colorful radishes, tomatoes, and carrots — contains arabinogalactans, a plant-based fiber and prebiotic that feeds the friendly bacteria that help your metabolism function optimally. The fiber also kills E. coli and klebsiella — two types of bad bacteria associated with carrying excess weight, Kellman says. Chop kiwi into grilled chicken salads or purée into smoothies for a colorful and sweet kick.
While probiotics encourage the growth of good bacteria, prebiotics feed the ones you already have. When you eat prebiotic foods like onions and leeks, they produce butyrate, a metabolic wonder drug that improves insulin sensitivity and increases the amount of fat you burn, says Rafael Kellman, M.D., author of The Microbiome Diet. Now that it's summer, pop either on the grill to bring out their sweetness. Drizzle with olive oil, salt, and pepper and cook until golden.
Don’t buy your tickets to Bonnaroo just yet; the kind of acid that will help you slim down is the stuff right inside your cabinet. A 12-week study published in Bioscience, Biotechnology, and Biochemistry reveals that obese study subjects who made vinegar part of their diet dropped more belly fat than a control group, and other research suggests that acidic foods, like vinegar, can increase the human carbohydrate metabolism by as much as 40 percent.
Noam Tamir, C.S.C.S, founder of TS Fitness, also says that metabolic resistance training and high-intensity interval training is a solid way to reduce fat all over, including belly fat. “These [types of exercise] help to burn calories during the workout, and they also give you that after-burn effect,” he says. “Plus, they help to change your body composition by increasing your muscle mass.”