I don't know. I am a classic fitness capsule introduced by my friend. I tried it for a month, and I lost 19 kg. I am very happy. However, this is not my ultimate goal. I took it for a month and a half, and my weight dropped from the original 1 13 kg to 94 kg now. During the period of taking it, there is nothing abnormal in the body. I hope I can help you! ! !