Both are released in response to eating nutrientsspecifically amino acids, glucose, dietary fiber, and fatty acids in food
They also have to go through significant pre-surgical counseling and preparation that can take months
A clinical study involving 564 adults (BMI 30-40 kg/m2, without T2DM) found that compared with orlistat (3120 mg, weight loss of 4.1 kg), LIR (subcutaneous administration of 1.2 mg/d, 1.8 mg/d, 2.4 mg/d or 3 mg/d) had an average weight loss of 4.8-7.2 kg, the two-year extended experiment of which also showed similar results (88, 89)
Its not just about taking a medication
As the deficiency progresses, bones may become brittle, nail and hair deformities can develop, wounds may take longer to heal and the immune system suffers