Speaking of things you find in the sea, oysters have also been shown to contribute to weight loss thanks to their impressive zinc content. One study found that obese people who consumed 30 milligrams of zinc per day—the equivalent of just six raw oysters—had lower BMIs, weighed less, and showed improvements in blood cholesterol levels. If oysters aren’t your thing, spinach, pumpkin seeds, and mushrooms are also excellent sources of zinc.
There's a reason (well actually, many reasons) why lentils are considered one of the world's healthiest foods. With 13 grams of protein and 11 grams of fiber per serving, this legume—another member of the pulse family—will keep you feeling full for hours in between meals. They're a great source of fat-burning resistant starch, too, with 3.4 grams in a half-cup serving.
“This warming—or cooling—beverage serves a dual purpose. Not only is it full of antioxidants and other healthy phytochemicals, but it has the benefit of slightly increasing your metabolism,” says Harris-Pincus. Sipping tea in the evening instead of snacking, or trading in your PSL for a cup of green tea will lower your calorie intake and help you burn a few extra calories. Just be sure to keep it unsweetened.
The nutritional content of this tasty spread may freak you out, but there's no reason to be afraid of fat! Fat helps make food taste delicious and keep you satiated, so it's actually good news that 1 tablespoon of almond butter has 9 grams of the stuff. Even better, adding almond butter to a carb-based food can help stave off a blood sugar spike thanks to its fat and protein (2 grams per tablespoon).

When it comes to condiments, mustard is about as healthy and low cal as it gets, and the pungent yellow stuff that contains about 5 calories per teaspoon has also been found to stimulate weight loss. Scientists at England’s Oxford Polytechnic Institute found that eating just one teaspoon of mustard can boost the metabolism by up to 25 percent for several hours after it’s been consumed. Researchers attribute this to capsaicin and allyl isothiocyanates, phytochemicals that give the mustard its characteristic flavor. So instead of reaching for the sickeningly sweet ketchup, make sure you have mustard on hand at your next BBQ.
Blueberries are lousy with antioxidants, satiating fiber, potassium, and more, and according to researchers at the University of Michigan, the colorful fruits may also encourage weight loss. In a study of laboratory rats, scientists found that after 90 days the rats who consumed blueberry-enriched powder as 2 percent of their diet had less abdominal fat, lower triglycerides, lower cholesterol, and improved fasting glucose and insulin sensitivity, than the rats who didn’t consume any blueberry-enriched powder.
Carbs are not the nutritional Voldemort. Actually, certain healthy carbs can help you lose weight—and air-popped popcorn is one of them. “Portion-wise, it has a lower calorie per unit volume than many other snacks,” Lauren Harris-Pincus, M.S., R.D.N., and owner of Nutrition Starring You, told SELF in a previous article. You get more bang for your caloric buck, and since popcorn is made up of complex carbs, it’ll digest more slowly, keeping you fuller longer.
^ Wang, X; Ouyang, Y; Liu, J; Zhu, M; Zhao, G; Bao, W; Hu, FB (Jul 29, 2014). "Fruit and vegetable consumption and mortality from all causes, cardiovascular disease, and cancer: systematic review and dose-response meta-analysis of prospective cohort studies". BMJ (Clinical Research Ed.). 349: g4490. doi:10.1136/bmj.g4490. PMC 4115152. PMID 25073782.
Here’s more reason to add avocado to everything. “Most of the carbohydrate content in avocados comes from fiber (1/3 of an avocado provides 11 percent of our daily fiber needs), and it also contains monounsaturated fat, which is known as a ‘good’ fat and [is] important for heart health,” says Zigler. Together, the healthy fats and fiber will keep you full to avoid mindless munching throughout the day.

Yes, peanut butter is high in calories, but if you stick the real stuff—a tasty combo of peanuts and maybe a touch of salt—the legumes can earn a place as one of the best foods for weight loss. In addition to providing you with belly-slimming monounsaturated fats, tummy-filling fiber, and metabolism-boosting protein, peanuts also contain genistein, a compound that helps turn down the genes for obesity and reduces your body’s ability to store fat.
Fruit and vegetables are low in calories and nutrient dense, which means they are packed with vitamins, minerals, antioxidants, and fiber. Focus on eating the recommended daily amount of at least five servings of fruit and vegetables and it will naturally fill you up and help you cut back on unhealthy foods. A serving is half a cup of raw fruit or veg or a small apple or banana, for example. Most of us need to double the amount we currently eat.
If giving up pasta is the hardest part of making changes to help lose weight, zucchini noodles are a healthier alternative, Michalczyk says. "I like to think of them as pasta's lower-carb and higher-in-nutrition cousin because zucchini is a good source of vitamins A and C, fiber and potassium for only about 33 calories per zucchini,” says Michalczyk. You can use in zoodles, much on as is with some dip, roast them, or add to salads.

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.
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