Slimming is an action taken to lose weight or make oneself thinner, especially by dieting. It is the act of trying to become thinner by eating less food. Slimming teas are often advertised as a way to lose weight and cleanse the body. The theory is that slimming products stimulate digestion, aid metabolism, and in some cases rid the body of impurities. Physical activity such as walking is also part of the process of slimming down as it helps in burning calories. So brisk walking for about 30 minutes can also contribute to slimming.