1. DON'T DRINK SUGAR
A study out of Tufts University in Boston looked at the association between sugar-sweetened drinks and the nutritional habits of 947 adults. Unsurprisingly, those who drank the most sugary beverages, like soda, had a higher risk of obesity and a lower intake of fiber. When you celebrate, opt for wine, beer, or a drink mixed with club soda. "Margarita mix, orange juice, and Coke often have more calories than the alcohol," Dimmick says.2. GO OFF THE SAUCE
Beware of the hidden calories in sauces. Use tomato sauce instead of alfredo on pasta; substitute hummus or mustard for mayo on a sandwich; and make your own salad dressing: Add a little ranch seasoning to plain Greek yogurt, or a dash of olive oil and balsamic vinegar.3. MAKE FIBER YOUR FRIEND
"Multiple studies have shown that fiber is correlated to weight loss as well as weight maintenance," says Jennifer Vimbor, M.S., R.D., founder of Nutrition Counseling Services in Chicago. Fiber passes through your system undigested, so your body has to work harder and longer to move it out, which helps rev your metabolism and give you a feeling of fullness. Aim to eat at least 25 grams of fiber a day: beans, whole grains, fruits and vegetables. (But to keep your GI tract quiet during the day, don't eat fiber two hours before you head out.)4. GO ALL DIY
"Throwing something together for yourself at home is almost always going to involve fewer calories than dining out," Dimmick says. "You can control the ingredients and the portion sizes." For nights you're too rushed to cook, stock your pantry and freezer ahead of time with these staples: vegetable and bean soups, a frozen vegetable pizza, brown rice you can microwave, a can of black beans and salsa (a combo of the latter three make an easy, healthy meal). In order to make a brown-bag lunch as easy as possible, double dinner recipes so that you'll have leftovers. Chili and lasagna--make them both heavy on the vegetables--are especially tasty the day after you make them.5. AVOID THE TOP 3 DIET ROADBLOCKS
Roadblock You're famished.Eat something with protein, carbs, and fiber like plain, fat-free Greek yogurt with a cup of berries. "Don't let yourself get too hungry, as it's hard to stop eating," Eberle says.
Roadblock It's a special occasion!
Celebrate. Moderately. Have a (small) piece of cake. No good comes of trying to "save up" calories. Eat your normal meals and snacks so you're not starving.
Roadblock Gaining back lost weight.
"Trying to stay at your lowest weight is like trying to stay at your peak fitness year round," Fitzgerald says. "When you dial back training, expect to put on a few pounds."