With our new 21-Day Tummy plan, you will be eating more anti-inflammatory foods, especially those rich in magnesium, and fewer carb-dense foods and FODMAPs (rapidly fermentable carbohydrates that can aggravate your gut). This plan helped my fellow testers and me shrink our stomachs (by up to 4 1/2 inches in one case!) and ease our tummy troubles. At least two people stopped taking prescription drugs for heartburn entirely, and GI symptoms disappeared completely for several testers.
Moves like the tolasana and the eight subsequent ones we did that day are representative of a shift that ab exercises have taken in the past decade or so. Previously there was a tendency to isolate the abdominal muscles to give each one an individual workout — crunches for your rectus abdominis, bicycles for the obliques — but as Olson points out, that's not the way it works in real life. "When you're reaching up to get something, picking up a baby or bending down, you need all the muscles to work together," she says. "Instead of targeting each one, you should aim for functional fitness, where the muscles work as a unit."

They also aren't the only culprit. Just sitting for long periods of time (at your desk job, during Netflix marathons) can wreck your waistline. "When you slouch, the front of your body is rounded, just as it would be in a crunch," says Sean Wells, a physical therapist, certified personal trainer, and exercise expert for the online weight-loss and wellness program BistroMD. "So you're still conditioning your rectus to be in this shortened state—but often, it's also weak."
With our new 21-Day Tummy plan, you will be eating more anti-inflammatory foods, especially those rich in magnesium, and fewer carb-dense foods and FODMAPs (rapidly fermentable carbohydrates that can aggravate your gut). This plan helped my fellow testers and me shrink our stomachs (by up to 4 1/2 inches in one case!) and ease our tummy troubles. At least two people stopped taking prescription drugs for heartburn entirely, and GI symptoms disappeared completely for several testers.

Speaking of fiber, another great source of the satiating nutrient is hummus and vegetables. Dippable veggies such as carrots, bell peppers, and broccoli are packed with fiber and an array of other vitamins, and they pair perfectly with the creamy chickpea dip, which has 2.5 grams of fiber per ¼ cup. By skipping unhealthy cheesy dips in favor or hummus, you’ll be doing your belly (and the rest of your body) a massive favor.
But regardless of how tight your ab muscles are, they can't erase belly fat that lies above (subcutaneous) or below them (visceral fat). Those you'll have to burn off—and according to Olson's research, the best belly fat-melting method is Tabata intervals. Maximum-effort cardio intervals raise your level of adrenaline, the fight-or-flight hormone that's the secret sauce to burning fat.

The diet to lose belly fat focuses on healthy carbs, such as whole grains, fruits and vegetables, and lean sources of protein such as seafood, poultry, lean red meat and beans. It needs to be low in saturated fat, trans fat and refined carbs such as white bread, soda and sweets. Eat three meals a day, with each meal being about the same size, plus one snack. Eating regularly controls hunger and keeps energy levels up.
In this book, we look at all of the ways you can improve your own gut health, starting with the food you eat. My diet recommendations, meal plans, and recipes will help feed and protect your gut microbes. And we look at the many other steps you can take to support your beneficial bacteria, from avoiding unnecessary antibiotics to changing the way you think about dirt and germs. Even the choices you make about how you bring your children into the world can have an impact on your family’s microbiomes.
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