"Fructose has (rightly so) gotten a bad rap lately for its role in promoting central obesity or belly fat," says St.John. "However, fructose found in whole foods like fruit does not act so sinisterly in the body. Fresh or frozen raspberries contain a great deal of fiber, which helps to regulate the body's insulin response and also reduce belly fat." If a fresh pint comes with a steep price tag at your local grocer, consider buying 'em frozen: they're cost-effective, last practically forever, and are picked at the peak of freshness.
You hate 'em anyway, so…you're welcome. Experts say that isolated abdominal exercises, like crunches, are a waste of time (kind of like these moves). "It's better to try ones that strengthen your core while burning more total calories," says Katy Bowman, a biomechanist and author of Diastasis Recti: The Whole Body Solution to Abdominal Weakness and Separation. Because if you're only strengthening the muscles on the top layer of your stomach — which is all a crunch targets — your stomach may end up looking thicker. Instead, try hanging from a tree branch the next time you take the kids to the park, and keep your stomach tight while you dangle. Or play with the kids, daring them to roll like a log without using their arms or legs, and see who gets across the living room fastest. Not only will you get in a mini workout, but you'll also have fun bonding time with them, too.
Here’s a shocker: When a group of U.K. researchers told 30 women to avoid chocolate, then packed them into a room filled with the stuff; the women were much more likely to sneak a bite than individuals who hadn’t been given the order. Blame the allure of the forbidden: The more you tell yourself you can’t eat something you love, the more you’re going to want it.
Research also shows that workouts involving high-intensity interval training (HIIT) can help reduce excess fat around your middle. Besides working your core, try incorporating a day or two of more vigorous exercise into your weekly schedule. (You can start with these three beginner routines.) Keep in mind that you can lower your total body fat percentage even by moving around more at work, according to another study.
Belly fat also responds to a lower-calorie diet that's full of healthy, unprocessed foods. Go for lean protein, fresh produce and whole grains at meals. When you have just a week to lose as much as possible, ban all sweetened drinks -- including soda and juice -- bakery treats and ice cream. Also avoid refined grains, such as pizza and white bread, as well as alcohol. Keep your portion sizes to just 2 to 4 ounces for meats and other proteins and about 1/2 cup for grains. Over the long term, these dietary revisions help you drop belly fat.
This is what's known as insulin resistance. Basically, when your body doesn't respond well to insulin, it actually makes more of the stuff, according to the National Institute of Diabetes and Digestive and Kidney Diseases. And that can lead to fat storage, especially around the middle of your body. That's where protein comes into play: A diet high in protein may protect you against insulin resistance, says Aronne.