There is danger. Long-term use of Danielle Leptin Coffee will lead to dizziness, nausea, abdominal distension and diarrhea, loss of appetite and indigestion. In this case, we should stop taking it immediately and go to the hospital for treatment in time. Some consumers will have symptoms of malnutrition and various organ disorders. Leptin coffee is a kind of coffee that uses the special components of leptin to help lose weight. Leptin is a hormone secreted by adipocytes, which can inhibit appetite, promote glucose metabolism and lipolysis, and help people lose weight.