Slimming (or detoxing) teas are advertised as a surefire and healthy way to lose weight. These teas usually come with a list of instructions that may include eating healthy, eating a lot less than you should, and/or exercising vigorously, all of which naturally boost weight loss. These teas also tend to have unnecessary additives and often contain a lot of caffeine which naturally acts as a diuretic. This can lead to digestive and bathroom issues among other things while just eliminating water weight. As always, a healthy and balanced diet will help you accomplish your health goals without risking other aspects of your health.