First of all, it depends on your physique. Herbal tea, which is generally considered to be able to lose weight, is used to eliminate excess water in the body. What I want to say here is that herbal tea can be divided into warm and cold, so you can't take one kind of herbal tea for a long time. As far as I know, roses are warm, chrysanthemums, mint and lotus leaves are cold, which need to be matched reasonably. Some flowers and plants cannot be used at the same time. There are well-matched herbal teas on the market now, so it is better to drink them often. Such as the famous Lipton and Yishengtang. If you have a special constitution, you'd better consult a doctor.