Bullet-proof coffee in Niuheng slimming products does contain low calories, which helps to promote the burning of intestinal fat and play a certain role in losing weight. But drinking caffeine for a long time may have a negative impact on the body, leading to chronic gastritis. To achieve a better weight loss effect, it is recommended to combine exercise with a light diet. In addition, individual differences lead to different weight loss effects, and different constitutions may show different effects. Generally speaking, Newbalance slimming products are reliable, but they should be used with caution, and it is best to use them under the advice of a doctor.