Sorry, medical staff generally don't become lecturers of milk powder manufacturers. Medical staff are usually professionals working in the medical and health field, and their professional knowledge and skills mainly focus on the diagnosis, treatment and care of patients. As a milk powder lecturer, you need to have a deep understanding of the milk powder industry, including the production technology, nutritional components, marketing and other aspects of milk powder. Although medical staff will have basic knowledge of infant nutrition, they often have no special training in the milk powder industry. Therefore, medical staff generally do not have the qualifications to become lecturers of milk powder manufacturers.