Peppers May Increase Energy Expenditure In People Trying To Lose Weight
Imagine your delight while enjoying your favorite Mexican food perhaps a fully loaded bean burrito topped with an ample supply of thinly sliced jalepeño peppers. What happens when you bite into a few more peppers than you bargained for? Does this thought conjure up the thought of a little heat? Perhaps even a bit of sweat on the brow? Indeed, food scientists can tell you that hot peppers contain a substance called capsaicin that not only adds spice to our foods but can actually cause your body to heat up. They hypothesize that plants evolved to contain capsaicin because it protected them from being eaten by insects and other pesky predators. On the contrary, cuisines worldwide rely on capsaicin-packing peppers to add pungency and zing to many traditional foods, and “pepperheads” often choose their meal to purposefully turn up the heat. But scientists are learning there is more than meets the eye (or should we say taste buds) when it comes to peppers. In fact, there is growing evidence that the body-heat-generating power of peppers might even lend a hand in our quest to lose those extra inches accumulating around our collective national waistline. And fortunately for those of us who don’t appreciate the “burn” of hot peppers, there are plants that make a non-burning version of capsaicin called dihydrocapsiate (DCT) that could have the benefits of peppers without the pungency.
In a study designed to test the weight-loss potential of this DCT containing, non-spicy cousin of hot peppers, researchers at the UCLA Center for Human Nutrition set out to document its ability to increase heat production in human subjects consuming a weight-loss diet. Under the direction of David Heber (Professor of Medicine and Public Health), they recruited 34 men and women who were willing to consume a very low-calorie liquid meal replacement product for 28 days. The researchers then randomized the subjects to take either placebo pills or supplements containing the non-burning DCT pepper analog. Two dosage levels of DCT were tested. At the beginning and end of the study, body weight and body fat were assessed, and the researchers determined energy expenditure (heat production) in each subject after he or she consumed one serving of the test meal. On Tuesday April 27, Heber and his research team will present their results at the Experimental Biology 2010 meeting in Anaheim, CA. This presentation is part of the scientific program of the American Society for Nutrition, home to the world’s leading nutrition researchers. Read more
Emotions Can Sabotage Weight Loss Progress
How many times have you, after a particularly hard day, reached for some chocolate or ice cream? It’s common for many people, but for those trying to lose weight, it can be detrimental to their long term success, and most weight-loss programs never even address it.
They focus on choosing healthier foods and exercising more, but they never answer a key question: how can people who have eaten to cope with emotions change their eating habits, when they haven’t learned other ways of coping with emotions?
Researchers at Temple’s Center for Obesity Research are trying to figure out the answer as part of a new, NIH-funded weight loss study. The new treatment incorporates skills that directly address the emotional eating, and essentially adds those skills to a state-of-the art behavioral weight loss treatment.
“The problem that we’re trying to address is that the success rates for long-term weight loss are not as good as we would like them to be,” said Edie Goldbacher, a postdoctoral fellow at CORE. “Emotional eating may be one reason why people don’t do as well in behavioral weight loss groups, because these groups don’t address emotional eating or any of its contributing factors.” Read more