Gastrointestinal disorders are another common cause of unexplained weight loss – in fact they are the most common non-cancerous cause of idiopathic weight loss. Possible gastrointestinal etiologies of unexplained weight loss include: celiac disease, peptic ulcer disease, inflammatory bowel disease (crohn's disease and ulcerative colitis), pancreatitis, gastritis, diarrhea and many other GI conditions.
Don’t let extra hours lounging in bed stand between you and a flatter belly. While getting enough sleep can help boost your metabolic rate, sleeping in may undo any benefit you’d enjoy from catching a few extra winks. One study reveals that late sleepers who snoozed past 10:45 in the morning ate nearly 250 more calories over the course of the day, despite eating half as many fruits and vegetables as their early bird counterparts. Even worse, they chowed down on more salty, sugary, and trans fat-laden fast food than those who woke up earlier. If you happen to head out of the house early, you’re in for an additional metabolic boost; researchers at Northwestern University have found that people exposed to just a short period of early morning sunlight had lower BMIs than their late-waking counterparts.
It’s a little counterintuitive, but consuming calories after you’ve just burned them appears to be vital to fat-burning. Your muscles need a combo of protein and carbs to replenish energy stores and build new muscle. In one study, people who downed a 270-calorie shake with 24 grams of protein and 36 grams of carbs after their workout lost about four more pounds of fat and built more lean muscle than those who didn’t refuel post-exercise. Eating protein after a workout may help with lean muscle gains and could also help to prevent overeating later in the day, says Lesli Bonci, RD, a nutritionist and owner of Active Eating Advice. Find out what fitness instructors eat post-workout.
One study from the University of Adelaide in Australia suggests you may lose more weight when you work out towards the end of your menstrual cycle, as opposed to right when a new one begins. That’s because the hormones estrogen and progesterone tell your body to use fat as an energy source. "Women burned about 30 percent more fat for the two weeks following ovulation to about two days before menstruation," study author Leanne Redman says.
6. Selenium: This mineral is crucial to regulating your thyroid, the gland in your neck that regulates your metabolism. What’s more, the thyroid is responsible for producing hormones crucial to an efficient and balanced metabolism. Since selenium is commonly found in seafood like tuna and oysters, most land-locked folks could benefit from a supplement of the stuff.
Stroll around the block for 15 minutes and you’ll torch nearly three times as many calories as you would by sitting for the same amount of time, says a new study in the Journal of Physical Activity and Health. Plus, walking after a big holiday meal will help aid digestion. In the mood for a longer stroll? These three 40-minute walking workouts from celebrity trainer Harley Pasternak will help you burn even more calories.
Fiber is a type of carbohydrate that your body can't digest, and it helps regulate the body's use of sugar as it slowly passes through your digestive system. Increasing your daily fiber intake can result in greater satisfaction after meals, less blood-sugar spiking and crashing, and subsequent reductions in the amount of calories eaten for the rest of the day. When trying to trim belly fat, aim to get at least 25 grams of fiber in your diet each day. Foods that are rich in fiber include pulses, like lentils and beans; apples and pears, with the skin; nuts and seeds; and cruciferous vegetables like broccoli and Brussels sprouts. Try this recipe for Tabbouleh with Chickpeas for a fiber-packed side dish or a one-dish dinner!
"Refined grains like white bread, crackers, and chips, as well as refined sugars in sweetened drinks and desserts increase inflammation in our bodies," says Patton. "Belly fat is associated with inflammation, so eating too many processed foods will hinder your ability to lose belly fat." Natural foods like fruits, vegetables, and whole grains are full of antioxidants, which have anti-inflammatory properties and may therefore actually prevent belly fat, Patton says.
Find ways to reduce your stress. People under excess stress tend to make less healthy food choices, and they may also burn fat more slowly. Excessive stress is bad for your skin, it's bad for your sleep, it's bad for relationships — it's just bad overall. So find a healthy way to get rid of it! You’ll feel better no matter how much it helps you in losing body fat.
Also some research shows that the human body is primed to consume most of its calories during daylight hours. But the lifestyle is problematic for many: Because family meals and dinners with friends often are scheduled for after sunset, "people who try to stop eating after 7pm can’t do it every day for the rest of their lives," says Dr. Seltzer, who supports an alternative strategy: Eating a hearty meal at your regular dinnertime.
Yes, you can dance your way slim! Grooving hard while celebrating with pals can blast even more calories than running, swimming, or cycling, per recent research from the University of Brighton in England. Dancing for an hour can burn anywhere from 200 and 600 calories, while also helping to build strength, increase flexibility, and even slow the aging process.
Once your body adapts to the stress you put on it, it's time to change the stress. Personally, I'd only run for a long distance if I were being chased by a hungry lion, so it's unlikely you'd catch me on the treadmill. I prefer to do weight training circuits combined with calisthenics, sprints, and jumps to keep things interesting. You can mix things however you wish, as long as you find it challenging.
At its core, burning fat comes down to the process of lipolysis—the breaking down of fat lipids, explains Seedman. This happens in the mitochondria of the muscles, or the powerhouses of the cells, responsible for generating the energy our cells need to do their jobs. Exercise has been shown to improve mitochondria function, which then promotes fat breakdown, Seedman adds. Plus, working out helps regulate pretty much all the hormones that optimize fat loss.