What is the success rate? Salespeople just love this question. Marketing is all about playing to the successes of the program. Ask about the average weight lost and how much time it took. Be wary of programs that pride themselves on clients losing large amounts of weight in only a few months' time. This could raise a red flag about the safety of the program.Are there physicians on staff? Weight loss clinics need some type of medical representation to discuss issues with patients. Clinics that offer Vitamin B injections or do physical exams should use qualified professionals for the job. Don't waste your time if this is not the case. Losing weight is not just about the fat loss but the overall health of the dieter.