Vitamins are important to the body. If you eat right you should get most of what you need. As you get older, your body changes ( I am getting tired of the doctors telling me that). I take 1200 mg of calcium and about 1000 of vitamin D. After a bone scan 3 years ago I am a little in the negative. I have tried 4 meds (boniva, fosmax, actenol, and evista) and had reactions to all. I am on a 5th med that seems to be working. My dh has to take B12 twice a month by injection because of nerve problems. He also takes calcium, vitamin D and potassium.
We also take a multiple vitamin. Check your vitamin D. The doctors are finding that many people have a problem with that because we don't get out in the sun enough without sunscreen.