A longtime enemy of doctors and dieters, pork has been coming around as a healthier alternative of late–as long as you choose the right cut. Your best bet is pork tenderloin. A three-ounce serving of pork tenderloin has slightly less fat than a skinless chicken breast; It has 24 grams of protein per serving and 83 milligrams of choline. In a study published in the journal Nutrients, scientists asked 144 overweight people to eat a diet rich in fresh lean pork. After three months, the group saw a significant reduction in waist size, BMI and belly fat, with no reduction in muscle mass! They speculate that the amino acid profile of pork protein may contribute to greater fat burning.
All animal proteins are also a good source of tryptophan, which is a precursor to the neurotransmitter serotonin. “If you struggle with mood or stress, it’s important to boost the production of serotonin to stabilize your mood, curb emotional eating, and keep stress-induced snacking at bay," especially when you’re trying to lose weight, says Cording. But when it comes to portions, opt for a 100 gram serving, which is about the size of a deck of cards, for reference.
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. (Struggling to get that shut-eye? This doctor-approved breathing exercise will help you fall asleep fast.)

Stop treating your kitchen like an all-night diner and you’ll stop seeing those unwanted pounds piling onto your frame, too. The results of a study published in Cell Metabolism found that mice who only had access to food during an eight-hour period stayed slim over the course of the study, while those who ate the same number of calories over a 16-hour period gained significantly more weight, particularly around their middle. When you’re finished with dinner at night, shut the fridge and don’t look back until morning — your belly will thank you. When you do head back to the kitchen in the A.M., make sure the best healthy kitchen staples for cooking are there waiting for you.
Instead of satisfying your sweet tooth with some refined sugar, turn to berries and enjoy a slimmer waistline in no time without exercise. Berries are loaded with antioxidants, which can help reduce inflammation throughout the body, and research from the University of Michigan reveals that rats given a cherry-rich diet shaved off a significant proportion of their belly fat when compared to a control group. Berries like strawberries, raspberries, blueberries, and blackberries are also loaded with resveratrol, an antioxidant pigment that has been linked to reductions in belly fat and a reduced risk of dementia, to boot. 
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