This tea is a weight-loss ninja. The stem, fruit and root bark of the barberry shrub contains berberine–a powerful, naturally occurring, fat-frying chemical. A study conducted by Chinese researchers revealed that berberine can prevent weight gain and the development of insulin resistance in rats consuming a high-fat diet. Previous studies have also found that consuming the plant can boost energy expenditure and help decrease the number of receptors on the surface of fat cells, making them less apt to absorb incoming sources of flubber. For more weight loss foods, check out these 7 Best Foods for Rapid Weight Loss.
Safe and effective weight loss requires you to eat 500 to 1,000 fewer calories than you burn off daily to lose 1 to 2 pounds weekly. Replacing sugary drinks, such as soda, juices, lemonade and sweetened iced teas, with herbal teas can help you meet your weight-loss calorie needs. For example, replacing two 12-ounce cans of soda with 2 cups of herbal tea reduces your energy intake by 300 calories daily, which should help you shed about 1/2 pound per week.
After dinner, wash all the dishes, wipe down the counters, turn out the light, and, if necessary, tape closed the cabinets and refrigerator. Late-evening eating significantly increases the overall number of calories you eat, a University of Texas study found. Learning how to stop late-night snacking can save 300 or more calories a day, or 31 pounds a year.
Mason, A. E., Epel, E. S., Aschbacher, K., Lustig, R. H., Acree, M., Kristeller, J., … Daubenmier, J. (2016, May 1). Reduced reward-driven eating accounts for the impact of a mindfulness-based diet and exercise intervention on weight loss: Data from the SHINE randomized controlled trial. Appetite , 100, 86–93. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4799744/

Yes, but probably not as much as you might hope. A review of studies on five major FDA-approved prescription medications for obesity, including orlistat, shows that any of them work better than a placebo for helping people lose at least 5% of their body weight over the course of a year. Phentermine-topiramate and liraglutide had the highest odds of making that happen.
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