Caffeine, the main component of black coffee, can lose weight to some extent, but long-term drinking will lead to long-term nervous excitement and nervous disorder.
Suggestion: Drink cocoa powder when you are tired and try black coffee occasionally. It is best to drink tea every day. Tea alkaloids contained in tea are beneficial to lose weight, have the effect of invigorating spleen, have good beauty and wrinkle removal effect, and have few side effects.