Using the so-called skimmer does no harm to the body, but it has no effect because its movement is not the active movement of the human body, but the passive vibration. I suggest that you should lose weight through exercise and moderate diet. Moderate dieting means not eating any food except normal three meals. Eat a normal diet for three meals, eat more fruits and vegetables, and eat less staple food for dinner. Coarse grains can be used instead.