When I found out I had Osteo, my doc told me to take V-D twice a day and also calcium with D twice a day. He didn't tell me how much though. I take 3200 iu daily. He's on vacation, if I can remember I'll ask him when he gets home. He's also my SIL so that helps greatly. We don't do naked though. I only go to him with things I can keep my clothes on. YUK, imagine getting naked for your SIL. He has had mothers of friends that come to him, then he has to sit across the dinner table with them. YUK