Have you read Dr. McCormick’s book? His information and experience helped me know more about my osteoporosis than any of the MDs (PCP, endocrinologists, etc) that I have been to over the years. So much of what he writes about is natural, sensible health based, and coming from a place of personal experience with his own osteoporosis, no matter how it happened to him. I don’t understand why you wouldn’t want to learn from everyone, and use the knowledge to help inform yourself, and take what might help you from different sources. A DO is a real doctor, and lots of times better, because they haven’t sold out to the corporations or big pharma. As far as the supplement sales I’ve tried them, they are fine, and it takes a lot of the guesswork out of trying to find ones that are targeted for bone health. I’ve used others, too, and it can be very confusing to find the right combinations of ingredients. I would trust his over some brand on a Walmart shelf!