As long as this popular crunchy treat isn't doused in movie-theater butter, it makes an excellent weight-loss snack. Not only is popcorn high in fiber, it even delivers some protein. A 1-ounce serving of air-popped corn (about 3½ cups) has 4 grams of fiber, almost 4 grams of protein and clocks in at 110 calories. This combination makes it a snack with staying power. Popcorn is filled with air, so you get a pretty large portion without a lot of calories. You can eat 3 whole cups of popcorn for only 100 calories.
We’ve said it before and we’ll say it again: fat is your friend! To be more specific, healthy fats will be your weight loss friends. Consider adding extra virgin olive oil to your diet and you might see the scale start to tip in your favor. One Journal of Women’s Health study discovered that an EVOO-enriched diet helped participants lose more weight than those on a low-fat diet. Like peanuts and avocados, extra virgin olive oil’s belly-blasting abilities are thought to be a result of the monounsaturated fats it contains.
You can add more veggies to your diet, enjoy your "cheat" foods, and cut back on the calories you’re eating, all at the same time. When Penn State researchers added pureed cauliflower and zucchini to mac and cheese, people seemed to like the dish just as much. But they ate 200 to 350 fewer calories. Those healthy vegetables added low-cal bulk to the tasty dish.
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.
Simply blasting the air conditioner, cracking a window open, or turning down the heat during the winter may help attack belly fat while we sleep, according to a study published in the journal Cell Press. That’s because colder temperatures subtly enhance the effectiveness of our brown fat stores—fat that keeps you warm by helping you burn through the fat stored in your belly. After participants spent 2 hours per day at 62.6 degrees F for six weeks, their brown fat stores increased.

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.

^{High-calorie drinks. Sweetened beverages are full of calories. Drink water this week and avoid all alcohol (wine, beer, and cocktails), juice, sports drinks, sweetened teas, flavored coffee drinks, soda, and commercially flavored water (such as vitamin waters). You can also make flavored water with fresh lemon juice or other fruit if you don't like plain water. Stay hydrated, but avoid drinks that cause weight gain via empty (non-nutritive) calories.}
Lately, we’re noticing protein-packed everything—from breads to nut butter and milk. While you don’t need to load up on weird franken-foods to amp up your intake of the nutrient, if you’re trying to drop a few pounds, then it’s wise to keep some high-protein snacks on hand. Noshing on these can prevent eating something high-calorie every time hunger strikes.
Start the day right with a berry parfait and an English muffin. Put four ounces of low-fat yogurt in a bowl with one tablespoon low-fat granola and ½ cup sliced strawberries. Add one more layer of yogurt and granola and finish it with ½ cup raspberries. You can eat this delicious berry parfait with half a toasted whole wheat English muffin topped with two teaspoons peanut butter.
^{Who knew that fantasizing about eating your favorite candy can actually result in real-life weight loss? A study found that daydreaming about eating an entire packet of the sweet stuff before indulging may cause you to eat less of it. To come to this finding, researchers asked participants to imagine eating three M&Ms versus 30. Then, they conducted a taste test where participants were able to nosh on the chocolate orbs. The results? Those who imagined eating lots of M&Ms ended up gobbling down the least!
Part of the weight loss puzzle has to do with fighting inflammation, and incorporating the spice turmeric into your diet is an excellent way to do that. Like a myriad of other spices, the Indian cooking staple contains anti-inflammatory compounds. In a 2015 study in the journal Clinical Nutrition , researchers gave 117 patients with metabolic syndrome either supplements of curcumin—the active ingredient in turmeric—or a placebo. Over eight weeks, those who received the curcumin saw dramatic reductions in inflammation and fasting blood sugar.}
We’ve already established that friends and family play a key role in motivating you to get in shape and maintain a healthy lifestyle, but it’s also crucial for you to be your own driving force. Luckily, research has shown that doesn’t need to require a tremendous amount of effort. According to a 2015 study in the Journal of Marketing Research , subtle, even subliminal, messages may be more effective at helping us stick to a healthy eating regimen than ongoing, conscious focus. The research showed that people who receive reinforcing notes urging them to eat healthily were more likely to make smarter choices than those who tried to keep their goals top of mind at all times, so grab some Post-Its and start crafting motivational messages!
It’s every chocoholic’s dream: Research now shows that eating moderate amounts of dark chocolate can reduce overall body fat and shrink your waist. A study among women with normal weight obesity (or skinny fat syndrome) who ate a Mediterranean diet that included two servings of dark chocolate each day showed a significant reduction in waist size than when on a cocoa-free meal plan. Researchers say it has to do with the flavonoids, heart-healthy compounds in chocolate that have important antioxidant and anti-inflammatory properties. Just be sure you’re reaching for a bar with at least 70 percent cacao, and stay away from the “alkalized” stuff, which has a significantly reduced flavonoid content.
^{If you haven't jumped on the mushroom bandwagon yet, now's the time. Researchers from the University of Buffalo discovered that portobellos could help you lose weight thanks to their ability to regulate blood sugar (which can help prevent diabetes) and balance hormones. They also concluded that the fungus may help you exercise for longer periods of time, so use it as vegetarian-friendly burger base or toss into a tasty breakfast frittata.
A great source of calcium and important cancer-fighting compounds, broccoli also has loads of filling fiber and will set you back only 30 calories per serving. If eating this cruciferous veggie makes you bloat, try steaming it first, which makes it easier to digest while still preserving the cancer-fighting ingredients that could be lost when you boil or cook it in the microwave.}
Cheese isn’t traditionally thought of as something you consume to encourage weight management, but calcium-rich Parmesan, when eaten in moderation, can help stave off sugar cravings that can easily lead to weight gain. How does that work, you ask? The native Italian cheese contains the amino acid tyrosine (a building block of protein) which has been shown to encourage the brain to release dopamine without any unhealthy insulin spikes. What’s more? The combination of calcium and protein found in dairy products such as Parmesan has been found to increase thermogenesis—the body’s core temperature—and thus boost your metabolism.

Create a seven-day meal plan. This meal plan should include three main meals (breakfast, lunch, dinner), scheduled at the same time of day, as well as two small snacks (between breakfast and lunch, and lunch and dinner), also schedule at the same time of day. This will ensure you eat at a consistent time for all seven days and do not skip or miss a meal. Eating about 1,400 calories a day, combined with daily exercise, can lead to healthy weight loss.[4]

Going gluten-free may be a popular trend, but unless you're actually gluten-intolerant or have celiac disease, plenty of reasons exist to continue eating whole grains. They're a tasty way to fill up on both soluble and insoluble fiber, which help you feel full for longer and keep bowel movements regular (oats, barley, and bulgur are especially high sources). Whole grains can also help prevent weight gain: in one study, women who ate whole grains like wheat germ and dark bread had a 49% lower risk of "major" weight gain over time.
A fat-burning superfood, grapefruit contains a compound that can lower the fat-storage hormone insulin, which in turn can lead to weight loss. In fact, eating half a grapefruit before each meal could help you lose up to a pound a week—even if you don't change anything else about your diet. Because grapefruits are 90% water, which fills you up, they also act as a natural appetite suppressant.
Tart cherries are grown exclusively in Michigan, but if you’re able to get your hands on them there is strong evidence to suggest they can help you achieve your weight loss goals. Need proof? Researchers at the University of Michigan conducted a 12-week study that found that rats fed tart cherries showed a 9 percent belly fat reduction over those fed a standard western diet. Scientists believe this is because tart cherries are especially high in anthocyanins, a type of flavonoid with strong antioxidant activity. These and other flavonoids found in tart cherries have also been shown to have anti-inflammatory effects.

Spirulina is a powdered, high-protein seaweed supplement. The dried stuff is about 60 percent protein, and, like quinoa, it’s a complete protein, meaning it can be converted directly into muscle in the body and is thus a great weight loss tool. A tablespoon of the blue-green algae delivers 8 grams of metabolism-boosting protein for just 43 calories, plus half a day’s allotment of vitamin B12, which in and of itself can give you more energy and boost your metabolism. Try tossing some spirulina into a smoothie and watching the pounds melt off. For more skinny smoothie ideas, check out this list of smoothie recipes for weight loss!

The best diet for losing weight is Weight Watchers, according to the experts who rated the diets below for U.S. News. Volumetrics came in second, and the Flexitarian Diet, Jenny Craig and the vegan diet were third on this overall weight loss ranking list, which takes into account short-term and long-term weight loss scores. Some other diets performed as well or better in our rankings for enabling fast weight loss, but long-term weight loss is more important for your health.