The myth: Give up bread and pasta and the pounds will melt away
The truth: Low-carb eating plans are a digestive nightmare, because they don't provide enough fiber, which frequently results in severe constipation, says Maye Musk, R.D., a New York City-based dietician. Healthy carbs are also crucial for energy. Stop eating them and you're likely to feel tired and grumpy all the time.
The fix: Eat good-for-you carbs. To make sure you get the nutrients you need, add four servings to your daily diet, suggests Musk. Try a slice of whole-grain bread, one-half cup cooked oatmeal, one-third cup brown rice and one-half cup whole-wheat pasta. Piling your plate with fiber-rich veggies such as spinach, broccoli, peas and asparagus can also help get things moving.
Kind of the opposite of eating a vegetable-based diet—not to be gross, but I always keep a plunger handy.