There are only two kinds of rumors: the non-dairy creamer in the coffee partner contains trans fatty acids, and the instant coffee contains acrylamide, a carcinogen. In fact, many brands of instant coffee have no trans fatty acids in non-dairy creamer for a long time, let alone adding sugar and milk to replace non-dairy creamer.

I read a lot on the Internet that black coffee helps to increase the fat burning rate. I don't know if this has improved, but I will sweat more when I walk to class after drinking it every day. Have a cup half an hour before exercise, and then you will sweat a lot after exercise for a while. It may be really useful, but it can only be used as an aid. It depends on a reasonable diet and more exercise.