Colorless and odorless capsaicin can cause burning sensation in mammals because it can stimulate a receptor called TRPV 1 on sensory nerves and release a substance P closely related to pain. Substance P can dilate blood vessels and speed up blood flow, so the part stimulated by capsaicin will turn red and hot. This kind of reaction is very similar to the fever after exercise, which may make people mistakenly think that they can play the same role as exercise in losing weight. As we all know, the real reason for losing weight by exercise is to consume a lot of energy, and fever is only an accompanying phenomenon.
Some studies have pointed out that capsaicin may have the effect of losing weight, but it is taken directly, not coated with Chili paste [5]. However, if it is finally confirmed to be effective and used as a safe drug to lose weight, further research and strict safety and effectiveness approval by the drug supervision department are needed. [9]