A study in the journal Cell  found that our gut microbes are just as affected by changes to our circadian clock as we are. When we shift our sleep-wake cycles, our gut flora changes, and beneficial bacteria are replaced by the growth of bacteria that have been linked to obesity and metabolic disease. When traveling across different time zones, it’s important you travel armed with healthy, fiber-rich snacks your gut will love.

When it comes to eating for weight loss, fiber is the number one nutrient that belongs on your radar. The Cleveland Clinic says women should aim for the recommended 25 to 30 grams per day, and one of the easiest ways to do that is by loading your plate with broccoli. The veggie contains 16 grams per bunch! If you don't like eating it solo, sneak it into the dishes you already love, like this Fusilli with Broccoli Pesto recipe.

You already know that a perfect diet doesn't exist, but many of us still can't resist the urge to kick ourselves when we indulge, eat too much, or get thrown off course from restrictive diets. The problem: This only makes it more difficult, stressful, and downright impossible to lose weight. So rather than beating yourself up for eating foods you think you shouldn't, let it go. Treating yourself to about 200 calories worth of deliciousness each day — something that feels indulgent to you — can help you stay on track for the long haul, so allow yourself to eat, breathe, and indulge. Food should be joyful, not agonizing!

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.
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.
If you’re on a quest to jumpstart weight loss, why not kick your metabolism into overdrive by sneaking spicy foods into your diet. Capsaicin, the active ingredient in cayenne pepper that gives it its spiciness, revs up your metabolism in a way that’s conducive to weight loss. In fact, according to a study in the American Journal of Clinical Nutrition, those who supplemented their diet with capsaicin consumed 200 fewer calories during their next meal.

Not much of a coffee drinker? Tea is also a natural diuretic, and types of herbal tea such as dandelion or fennel root can also lend a hand. In fact: When a recent study compared the metabolic effect of green tea (in extract) with that of a placebo, researchers found that the green-tea drinkers burned about 70 additional calories in a 24-hour period.

Yogurt is protein-packed and full of probiotics, which are good for gut health and may help your weight-loss efforts. Your gut health can impact your weight, and eating more fiber and probiotics helps keep your gut bacteria happy, which can be good for your metabolism (read more about your gut-weight connection). Go Greek for more protein; plus, research from Appetite found that consumption of Greek yogurt was associated with reduced appetite and increased satiety. Just keep an eye on added sugars in flavored yogurts, which only add calories. Instead, use fresh fruit to sweeten plain yogurt.
Grapes were basically made to be snacked on, and always having some on hand could be great for your weight loss goals — a study published in PLOS Medicine found the sweet fruit can aid in shedding unwanted pounds. If you're trying to resist a calorie-heavy dessert, try tossing a bunch into the freezer so you can pop a few whenever you're craving something sweet.
Another weight-loss-friendly substitute to keep in mind is favoring salsa over ketchup. While ketchup typically has around 19 calories and 4 grams of sugar per tablespoon, fresh tomato salsa has about 5 calories per tablespoon, no added sugar, and is packed with nutritious veggies. Tomatoes, for example, are loaded with fat-blasting fiber and vitamin C, a deficiency of which Arizona State University researchers associated with increased body fat and larger waists. If you can handle spice, toss some jalapenos in your salsa to rev up your metabolism. For more on how you can switch your metabolism into overdrive, check out the best ways to boost your metabolism!
You can avoid a mindless binge by adding visual traffic lights to your snack. Researchers at the University of Pennsylvania and Cornell University gave one set of students a bowl of uniform yellow chips, while another group had their regular snack layered with differently colored chips. Students who had their snack segmented ate 50 percent less than those with a uniform bowl.
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!
Health experts across the world vouch for green tea for a reason – it is amazingly healthy. Green tea is known to boost the calorie-burning mechanism in our body. According to a study, green tea can indeed help you lose weight (15) (you might have to drink about seven decaff cups a day). Green tea contains loads of antioxidants, the most potent of them being the catechins that have been found to boost metabolism and reduce body fat (16).
Good news for carb lovers: Scientists discovered an easy way to slim down any bowl of rice by as much as 60 percent! And the best part is that you don’t need a fancy lab or a PhD. to make the slimmed-down dish. Here’s how to whip it up: Add a teaspoon of coconut oil and a half cup of non-fortified white rice to a pot of boiling water. Cook it for about 40 minutes, stick it in the refrigerator for 12 hours and enjoy the rice either cold or reheated. How does such a simple cooking hack—that adds fat, no less—slash calories? When the rice begins to cool, its glucose molecules form tight bonds called “resistant starch.” This type of starch, as the name implies, is resistant to digestion, meaning that the body is not able to absorb as many calories or as much of the glucose (a nutrient that’s stored as fat if it’s not burned off) from each molecule. While you may be hesitant to add the oft-vilified oil to your pot, it actually plays an integral role in the process. As the rice cooks, the fat molecules find their way into the rice and act as an additional digestion barrier. Best of all, the research team found that reheating the rice didn’t change the levels of resistant starch (as it does with pasta and potatoes), deeming this calorie-slashing cooking hack safe for leftovers, too.
Yogurt is protein-packed and full of probiotics, which are good for gut health and may help your weight-loss efforts. Your gut health can impact your weight, and eating more fiber and probiotics helps keep your gut bacteria happy, which can be good for your metabolism (read more about your gut-weight connection). Go Greek for more protein; plus, research from Appetite found that consumption of Greek yogurt was associated with reduced appetite and increased satiety. Just keep an eye on added sugars in flavored yogurts, which only add calories. Instead, use fresh fruit to sweeten plain yogurt.