While the Duke study found no added benefit to resistance training (aka weight or strength training) when it comes to belly fat, a 2014 study from a Harvard University team found otherwise. Twenty minutes of weights a day was linked to less of an increase in belly fat (particularly for older men). “Engaging in resistance training or, ideally, combining it with aerobic exercise could help older adults lessen abdominal fat while increasing or preserving muscle mass," said the paper’s lead author Rania Mekary.
People with chronically high levels of the stress hormone cortisol tend to carry excess visceral fat. Foods that are high on the glycemic index (GI), which uses a ranking system of 0 to 100, cause more rapid spikes in your blood sugar, in turn triggering the release of cortisol when glucose levels crash. The constant up and down of your blood sugar levels can also lead to insulin resistance — the first step on the road to type 2 diabetes. To help keep cortisol levels stable, choose low-GI foods (with a rating of 55 or less) like beans, lentils, and chickpeas, instead of high-GI options like white rice and potatoes. To find the GI rating of your foods, use the University of Sydney’s database at glycemicindex.com.
And maybe a new mattress, because it’s not just the amount of time you spend sleeping that keeps you lean, it’s also the quality of your sleep. Fat cells in your body produce a hormone called leptin that helps the body keep track of how much potential energy (i.e. fat) it has stored. But leptin is only produced during certain stages of sleep. Miss out on those stages because you’re not resting soundly enough, and you’ll disturb levels of the hormone, leaving your body with no real idea of its energy reserves. Consequently, you’ll end up storing calories rather than burning them.
This Mexican root vegetable contains inulin, a type of fiber that slows down the absorption of blood sugar to help you feel fuller longer, Kellman says. It's also high in magnesium and manganese, two vitamins needed for digestive enzymes to function at their peak. Add chopped jicama to give salads a nice crunch or shred it in your favorite summer slaw.
By now you know to swap out regular yogurt for the Greek stuff and white bread for whole-wheat. But if you don't look closely, a product labeled "Greek" or "whole-wheat" may not be what it seems. A typical one-cup serving of plain Greek yogurt (like Fage 0%) provides 23 grams of protein and 9 grams of sugar, making it a smart choice. But another version of what looks like the same product can have over 18 grams of sugar. Not good, as the American Heart Association suggests women only eat 30 grams in an entire day. The same trickery goes for whole-wheat bread packages — some companies are loading it with high-fructose corn syrup, an unnatural additive that's 20 times sweeter than sugar and not recognized by the brain. Studies show that eating the stuff confuses your body's hormones so you don't realize when you're full, essentially forcing you to overeat when you thought you were making a healthy choice.
The popular "flat belly diets"embrace much of the wisdom found in eating a Mediterranean diet, which helps everything from brain health to hearth health. The basic premise for both diets is eat foods rich in monosaturated fatty acids (MUFA) that may help reduce your belly fat storage. MUFA-rich foods include olive oil, nuts and seeds, avocodos, and fish. Eating yogurt regularly has also been found to be helpful in reducing belly fat.
The researchers explain that people who cook their own meals may simply have other good-for-you habits, like exercising more. However, they concluded that home cooks simply ate more fruits and vegetables (along with a wider variety of foods), have healthier methods of prepping their food, and splurge less on foods high in calories and sugar. No clue where to start? Try these 25 high-protein chicken recipes for weight loss.
In a 2012 study in the journal Obesity, subjects who increased their soluble fiber intake by 10 grams a day—the equivalent of two small apples, one cup of green peas, and one half-cup of pinto beans—reduced visceral fat by 3.7 percent after five years. Even more, participants who also engaged in moderate physical activity (exercising vigorously two to four times a week) experienced a 7.4 decrease in visceral fat over the same period of time.