6. Fast once a week: While regularly underfeeding your body completely messes with your hormone balance, there’s sufficient research to suggest that intermittent fasting (IF)—or going without any food for set intervals—can actually help your insulin sensitivity and burn more fat. Researchers at LSU, for example, found that when people fasted all day, every other day, their fat oxidation increased and they actually lost 4 percent of their body fat in just 22 days. There are a lot of ways to go about IF, from fasting for 12 to 16 hours every day, to going 24 hours once a week. (Learn more about it here.)
Drink cold water: Staying hydrated period is important to keep your systems sharp, but adding ice to your water can help give your fat-burning potential a boost. German researchers found that drinking six cups of cold water can raise your BMR—that’s your resting metabolism—by roughly 50 calories a day because your body has to work to heat the H2O to body temperature.
How to do a Turkish get-up: Holding one kettlebell by the handle with both hands, lie on your side in a fetal position. Roll onto your back and press the kettlebell up toward the ceiling with both hands until the weight is stable on one loaded side. Release your free arm and free leg to a 45-degree angle with your palm facing down. Slide the heel of the loaded side closer to your butt to firmly grip the floor.
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.
2. Beta-alanine: This one doesn’t directly burn fat, but it does help you work out harder and longer, which in turn lets you melt that extra layer. The non-essential amino acid converts to carnosine, which is one of the strongest buffers against your muscles getting fatigued. Because carnosine keeps your muscles from calling it quits, studies have found beta-alanine can help your performance during HIIT, increase strength, and even help you gain more muscle to then reap all those metabolism boosts.
2. Go to sleep earlier: A study in BMC Public Health found that people who racked up insufficient sleep on the reg were more likely to have a higher BMI. Meanwhile, researchers from the University of Chicago found that sleep loss causes decreased glucose tolerance and insulin sensitivity (those processes that cause your body to shuttle nutrients into fat cells instead of muscle cells) as well as elevated levels of ghrelin—the hunger hormone—and cortisol, the stress hormone that encourages your body to store fat. What’s more, the less you sleep, the less testosterone your body is able to produce. In short, skimping on sleep messes with all the hormones that help extra fat off your body—so hit the hay already. Shoot for at least 7 hours a night, more if you’re training hard because your body needs more time to repair and rest.
If you’re only getting a minimal amount of sleep each night, that leaves more time for you to snack and make otherwise unhealthy decisions that could affect your weight loss. Although it will vary from person to person on how much sleep you actually need to be most effective (and therefore make progress toward your weight loss goals), the ideal number is typically 7 or 8 hours, says Dr. Cheskin.
If you've been lifting moderately heavy weights but are still looking to drop belly fat, it's time to pick up the intensity by using heavier weights and cutting down on rest time between reps, says Tyler Spraul, CSCS, a certified strength and conditioning specialist and the head trainer at Exercise.com. "Lifting heavy is where you see more an afterburn effect. Your body continues to burn calories even after you leave the gym," Spraul says. Just be sure that your technique doesn't suffer as you increase your weight, which can lead to injury. If you're new to strength training, this 15-minute total-body workout is a great place to start.