While you may think you’re doing yourself and your waistline a favor by stocking up on sugar-free goodies, the well-meaning habit is likely doing more harm than good. In a 2012 study in The American Journal of Clinical Nutrition, researchers found that those who drank diet beverages had higher fasting glucose, thicker waists, lower HDL (good) cholesterol, higher triglycerides, and higher blood pressure. In other words, sugar-free cookies, soda, and the like may seem like the healthier option, but they contribute to a bulging belly and negatively impact your health in multiple ways.
When grabbing grub at a fast-food restaurant, the “combo” or “value meals” are typically less expensive and make you feel like you’re getting a better deal, but oftentimes they’re also nutritional nightmares. A study in the Journal of Public Policy & Marketing  shows that compared to ordering à la carte, you pick up a hundred or more extra calories by opting for the aforementioned cheap “value meals.” That’s because, when you order items bundled together, you’re likely to buy more food than you need or want, and end up overeating as a result. To keep your weight in check, order your food piecemeal instead.
Exposure to light at night doesn’t just interrupt your chances of a great night’s rest, it may also result in weight gain, according to a new study published in the American Journal of Epidemiology. As crazy as it may seem, study subjects who slept in the darkest rooms were 21 percent less likely to be obese than those sleeping in the lightest rooms. The takeaway here is a simple one: Turn off the TV and toss your nightlight.

Napping may be an easy way to catch up on some missed shut-eye, but dozing off in the middle of the day does nothing to aid weight loss. In fact, research has found that people burn fewer calories when they sleep during the day and log their waking hours after the sun’s gone down. To come to this finding, researchers at the University of Colorado at Boulder studied 14 healthy adults for six days. For two days, study participants slept at night and stayed awake during the day, then they reversed their routines to mimic the schedules of night owls. When participants slept during the day, researchers found that they burned 52 to 59 fewer calories than they did while catching their Zzzs in the evening—likely because the schedule messed with their circadian rhythm, the body’s internal clock that plays a major role in metabolism function. If your circadian rhythm is out of whack, a separate study by University of Colorado Boulder researchers suggested spending a weekend in the wilderness to get it back on track.

To jumpstart your weight loss, we’ve selected some nutritious eats, like salsa, that are lower-calorie substitutes for less healthy choices (we’re looking at you, ketchup). And other weight loss foods, such as watermelon, contain certain compounds that have been scientifically proven to reduce the size of your waist and help reduce body fat. Scroll down below for a list of a few dozen best weight loss foods, and get even more health-conscious inspiration from this list of these dinner ideas that don’t need a recipe!
Compared to other nut varieties, pine nuts tend to be on the pricier side, but adding them to your shopping cart could be a good investment for your health. Research suggests that the fatty acids in these little nuts could increase satiety hormones, helping you feel full. They're also packed with vitamin B1 and manganese, a mineral that helps your body metabolize carbohydrates and protein.
On top of its 4 grams of belly-filling fiber, a cup of hearty oatmeal delivers as much protein as an egg. In other words, the popular breakfast food is an excellent weight loss tool. In fact, according to a study in the Annals of Nutrition and Metabolism, scientists found that having oatmeal for breakfast resulted in greater fullness, lower hunger ratings, and fewer calories eaten at the next meal compared with a serving of ready-to-eat sugared corn flakes, even though the calorie counts of the two breakfasts were identical. For ways to get more fiber, sprinkle some berries and chia seeds on top of your oatmeal, but be sure to stay away from fattening syrup and sugar.

When many of us have too many options to choose from, we often become flustered and make the wrong decision. Same goes for food. If you have a few different boxes of cereal and a handful of flavors of potato chips, you’re likely to eat more of the packaged stuff. Limiting your options to just one can cut down on your grazing habits and prevent a snack attack.

Your favorite childhood snack is good for your grown-up self, too. Because peanut butter is a great source of protein and healthy fats, it can curb hunger and keep you feeling full long after you're finished eating. Having small snacks during the day that include a lean protein such as peanut butter with complex carbs (like an apple or banana) can also help keep your metabolism running smoothly.
But if navigating these choices seems confusing, that’s where Eat This, Not That! comes in. What really works are making little lifestyle tweaks, simple moves that help you slash calories, boost nutrition and build a healthy foundation. We’ve gathered up some of the easiest, most effective new tricks and tactics to help you shed those unwanted pounds and slim down for good.
“Calorie counting is not the only game in town when it comes to weight loss. Chemical counting should also be part of our decision-making process. Processed foods, plastic bottles, lotions, non-organic dairy, and many other items in our daily lives contain endocrine disruptors that can lead to hormonal imbalance and stubborn weight gain,” Jennifer Cassetta, clinical nutritionist, personal trainer, and expert from ABC’s “My Diet Is Better Than Yours” tells us in 22 Top Weight Loss Tips, According to Nutritionists.

What if we told you that you could make 20 percent of your belly disappear this year—poof, just gone? Penn State University researchers compared those who consumed avocado oil with those who consumed a flax-safflower oil blend. Those on the canola oil diet—just three tablespoons daily did the trick—lost nearly 2 percent of their belly fat in just one month. For more ways to enjoy big, bold flavors, burn flab with these healthy fats.