Here’s a bummer for anyone hoping hoodia pills (made from a South African plant) will whittle their waistline: A study found that most weight-loss supplements don’t work. A researcher reviewed products claiming to block fat or carb absorption, increase metabolism, reduce body fat, or suppress the appetite and found that many supplements had no randomized clinical trials-the best way to determine a drug or supplement’s effectiveness-to prove their claims. And those tested showed at most a 4-pound drop in weight compared with people taking placebos. A safer, more effective way to lose weight: Eat fewer calories and exercise more.
Source: Diabetes Forecast Magazine July 2012/ International Journal of Sport Nutrition and Exercise Metabolism, April 2012
Science has again shown the importance of a good night’s sleep. Twenty-one people without diabetes got only six hours of shut-eye a day, at odd hours, for three weeks. By the end, their sleep-deprived bodies were making an average of 32 percent less insulin after a meal than they did at the study’s start, leading to higher blood glucose that reached prediabetic levels in some people. What’s more, the drowsy participants ended up with a lower metabolic rate, which would translate into a weight gain of almost 13 pounds over a year, the researchers say. After a nine-day recovery period, participants’ blood glucose metabolism returned to normal. Theses findings suggest a link between sleep schedules, obesity, and type 2 diabetes.
Source: Diabetes Forecast Magazine July 2012/ Science Translational Medicine, April 11, 2012.