I am 52 years old and my vitamin d keeps coming down in spite of vitamin d injections once a month what could be the reason and what is the treatment.

Question

Hyperparathyroidism is associated with high calcium in the blood. The cause is a parathyroid tumor. It can decrease the amount of calcium that is absorbed from your intestines by decreasing the amount of vitamin d available. If your vitamin d levels are decreased, you can't absorb so much calcium from your diet your exposure to sunlight is limited. Because the body makes vitamin d when your skin is exposed to sunlight, you may be at risk of deficiency if you are homebound, live in northern latitudes, wear long robes or head coverings for religious reasons, or have an occupation that prevents sun exposure. You have dark skin the injections cannot keep up the vitamin d requirements in your case.

Sajeev Kumar · Accepted Answer

Hyperparathyroidism is associated with high calcium in the blood. The cause is a parathyroid tumor. It can decrease the amount of calcium that is absorbed from your intestines by decreasing the amount of vitamin d available. If your vitamin d levels are decreased, you can't absorb so much calcium from your diet your exposure to sunlight is limited. Because the body makes vitamin d when your skin is exposed to sunlight, you may be at risk of deficiency if you are homebound, live in northern latitudes, wear long robes or head coverings for religious reasons, or have an occupation that prevents sun exposure. You have dark skin the injections cannot keep up the vitamin d requirements in your case.