However, if the thyrotoxicosis is treated early, bone loss can be minimized.[1] The level of calcium in the blood can be determined by a simple blood test, and a bone density scan can document the amount of bone loss. There are many medications that can help to rebuild bone mass and to prevent further bone loss.[13] Risedronate treatment has been demonstrated to help restore bone mass in osteopenia/osteoporosis associated with Graves' disease.[17] Nevertheless, weight-bearing exercises, a balanced diet, calcium intake of about 1500 mg a day and enough vitamin D, are of course elementary foundations.[13]