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.
High-intensity interval training (HIIT) is a great belly-blasting option for those who already feel comfortable in the gym because it helps you drop fatty tissue and build muscle simultaneously. “High-intensity interval training is when you perform an exercise at or close to your maximum ability for a short period of time and then take a brief respite and do it again. HIIT should usually be done on a 2:1 interval, meaning if you did an exercise for one minute, you rest for 30 seconds and then repeat,” explains Dr. Alex Tauberg, DC, CSCS, EMR in 50 Ways to Shrink Your Belly. To use HIIT to shrink your belly, do workouts that engage your core such as abdominal crunches or bridges. “By performing core workouts using a HIIT plan, you can burn calories and build muscle at the same time,” Alex adds. “This can be a great way to flatten that stomach when you don’t have too much time to work out.”

When you’re done cooking, portion out just enough for your meal and pack the rest away. Putting your food away asap will not only keep it fresh for future meals but it will also deter you from mindlessly nibbling and eating more than the desired portion size. Same goes for when you’re dining out: Ask for a to-go box along with your meal, that way you can pack away the leftovers and aren’t tempted to overeat. When noshing on the leftovers at your next meal, you can also experiment with adding some additional fiber or protein to give the dish a nutritional boost.

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.

We’ve already discussed the weight loss benefits of avocado oil, so it should come as no surprise that the mothership has its own fat-blasting properties. Though avocados get a bad rap for being high in calories, they’re actually loaded with heart-healthy monounsaturated fats that make you feel less hungry. Need proof? A study in Nutrition Journal found that participants who ate half a fresh avocado with lunch reported a 40 percent decreased desire to eat for hours afterward. What’s more? Unsaturated fats, such as those found in avocados, have been linked to preventing the storage of belly fat.

While overnight oats remain a healthy and trendy breakfast, there’s one healthy oatmeal trend that’s also making waves: Zoats! The funny-sounding name actually describes a very straightforward (but delicious) dish made from shredded fiber-filled zucchini, oatmeal, milk, spices and nutrient-packed add-ins such as nuts and fruit. We love how the dish makes it easy to add veggies to your morning meal—somewhere it’s rarely found. Another win: Adding zucchini to your oatmeal adds bulk to your breakfast bowl without the need for extra cereal, ultimately saving you calories.
Drinking enough water can help you stay slim, too. Research from the American Chemical Society in Boston found that having two 8-ounce glasses of water before a meal while also reducing portion sizes could help you lose weight and keep it off. Not to mention, water fills you up, curbing your appetite: "In addition to slightly boosting your metabolism, drinking water before meals has been shown to help you eat less without trying," says Sass.
^{Well, who doesn’t love snacking? But the problem is, we snack on stuff we are supposed to stay away from. How about healthy snacking? You can carry with you something nutritious every time you step out of your home. Fruits, granola bars, or even a packet of plain popcorn – anything similar can serve the purpose. These contain fewer calories and are far better than those high-calorie ones (17).}
As far as spices go, saffron is one of the most expensive ones around, but it’s also a substance that preliminary research suggests can contribute to weight loss. According to a study published in the journal Antioxidants  saffron extract may inhibit weight gain in a number of ways similar to how antioxidants function. The research suggests the colorful spice could decrease calorie intake by blocking dietary fat digestion, act as an antioxidant and suppress inflammation, suppress food intake by increasing satiety, and enhance glucose and lipid metabolism. Though scientists aren’t totally sure what makes saffron so weight loss friendly, they suspect it has something to do with crocetin and crocin—two antioxidant-rich compounds found in saffron that give it its distinct color.

In addition to blasting belly fat, you should also be working out and trying to build up your muscle mass. Even when you’re at rest, your body is constantly burning calories, and the “resting metabolic rate” is much higher in people with more muscle. That’s because every pound of muscle uses about six calories a day just to sustain itself. If you can pack on just five pounds of muscle and sustain it, you’ll burn the caloric equivalent of three pounds of fat over the course of a year, and be even closer to obtaining that lean physique you’ve always wanted.

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.
“I wish people knew that almond milk is no nutritional match to cow’s milk. In addition to being a great source of calcium and potassium, a cup of cow’s milk has eight grams of protein, which is about the same as a whole egg. Almond milk has only 1.5 grams of protein and can have added sugar when people buy the flavored or sweetened versions. Protein is important for making us feel full and energized longer, and that’s key for being able to have a productive weekday morning,” Libby Mills, MS, RDN, LDN, Spokesperson for the Academy of Nutrition and Dietetics tells us in 22 Top Weight Loss Tips, According to Nutritionists.
Sure, trampolines are built for kids, but as an adult, using one for rebounding is a great way to flatten your tummy and get rid of excess fat. “Not only is it a great cardio workout (which is the first step to tightening up your midsection) but it makes your core work like crazy so you are getting the cardio plus the toning: everything you need for a tight tummy!” explains Hope Pedraza, a Certified Personal Trainer through American College of Sports Medicine in 50 Ways to Shrink Your Belly. To get a comprehensive workout using a mini trampoline, Pedraza suggests jumping, lifting your knees up high, twisting, adding some light weights to move around while you’re jumping, and moving in all directions in different planes.
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.
Think of each almond as a natural weight-loss pill. A study of overweight and obese adults found that, combined with a calorie-restricted diet, consuming a little more than a quarter cup of the nuts can decrease weight more effectively than a snack comprised of complex carbohydrates and safflower oil—after just two weeks! (And after 24 weeks, those who ate the nuts experienced a 62% greater reduction in weight and BMI!) For optimal results, eat your daily serving before you hit the gym. A study printed in The Journal of the International Society of Sports Nutrition found that almonds, rich in the amino acid L-arginine, can actually help you burn more fat and carbs during workouts. Fill up, but don’t fill out: Use these Eat This, Not That!-recommended 10 Daily Habits That Blast Belly Fat.