While no crunch in and of itself will get rid of belly fat, abdominal exercises are the “finishing moves” to sculpt the abs once you’ve removed excess fat via diet and exercise, Holland says. Spend the majority of your workout focusing on the rest of your body, and dedicate no more than 10 percent of your time on abs work. So if you work out for an hour, plan six minutes of abs exercises and give the rest of your time to strength training and/or cardio.
Stoke your body with meals that combine belly-friendly fiber, lean protein, and healthy fats so you never feel hungry. We’ll stay largely carb-light, but now you’re ready to reintroduce sweets to your diet, with a delicious dessert every other day. Meals feature an ideal balance of 40 percent carbs, 30 percent protein, and 30 percent fat, which research indicates is the best mix for decreasing inflammation and improving digestion. It’s the combination we recommend you stick with for life.
The best part? Instead of cranking out dozens of crunches, we’re about to make-under your ab routine. For the first two weeks, do two to three circuits of the first four moves; together they hit all four ab muscle groups. “You’ll reach your goal faster if your workout builds on intensity and total reps done over time,” Olson explains. These moves get a little harder and the reps get higher for week three, plus there’s an exercise added in. Same for week four, except this time you’ll add two more moves to your session. By that week, expect two to three circuits of seven moves with the max challenge and reps. No sweat—you’ll be ready.
Yep, you read that right. High-water foods like fruits and veggies will fill you up faster, says Jaclyn London, M.S., R.D., C.D.N, Nutrition Director at the Good Housekeeping Institute. Start your meal with soup, salad, or her favorite pick: Pre-dinner sliced crudité and spicy hummus. The combo of capsaicin (a spice in hot peppers) and the chickpeas' soluble fiber can help curb hunger.
Want to get a flat tummy fast? This plan from best-selling author Liz Vaccariello may help you beat belly bulge in less than a month. The secret? Your body’s weight-loss weapon: stomach bacteria. Scientists have identified a relationship between imbalanced digestive bacteria and weight gain. This 21-day plan will help you optimize your gut and get slim at the same time!
Stand with feet together, arms out at your sides like airplane wings. Exhale, and lift the right leg forward and up. At the same time, sweep the arms forward at shoulder level and round your spine, like a cat. The navel should feel as though it's pressing toward the spine. Inhale, open back up, and return to the starting position. Repeat with your left leg. Switch between sides for 20 reps.
Whereas many beverages can increase your waistline (see above), there is one that is guaranteed to trim your tummy: water. Drinking plain ol' H2O works because staying fully hydrated tells your body it's okay to release any extra water it's retaining, decreasing the accompanying bloat. Plus, drinking water has been proven to reduce cravings for sweets, lower your appetite, and help you feel satiated faster.
Begin in downward facing dog. Extend your left leg up to the ceiling, pointing your toes. Shift your weight forward and begin to lower your hips into a plank pose but instead of putting your left toes down, bend your left knee into your chest, lifting your abs into your spine during the entire movement. Press your hips back up and extend your left leg behind you as you return to downward facing dog. Repeat 10 times with the left leg, 10 with the right.

The last protein you’ll be cooking this week is another lean meat, pork tenderloin. Congratulations! You made it through the week without red meat! The average American eats about 3.3 oz of red meat per day. Eating too much red meat has been linked to chronic, inflammation, heart problems, cancer, and an unhealthy gut, so our flat-belly plan eschews the stuff. That doesn’t mean you shouldn’t have it, though! Experts recommend having only 3 servings of red meat a week—but make sure it’s grass-fed beef, not grain-fed. This source is teeming with heart-healthy omega-3s and fat-burning conjugated linoleic fatty acids. It’s also lower in inflammatory saturated fats.
"Researchers are now discovering that gut bacteria also seem to play a role in the complex process of weight loss and weight gain," he writes. "We don't know exactly how much impact our Little Buddies have on our weight, but we're learning enough to believe that understanding the connection more fully may help us as we confront the obesity epidemic in the United States — and in our own bodies."
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