Vitamin D is important for maintaining bone health, supporting the health of the immune system, brain, and nervous system. It also regulates insulin levels and is important for a healthy heart and blood vessels.

You can take Vitamin D at any time of the day, morning or night. However, there is limited information available about the best time to take Vitamin D. Take it exactly as advised by your doctor. However, if not sure, consult your doctor.

Vitamin D should be administered under the supervision of a trained healthcare professional or a doctor only and should not be self-administered. The dose will depend on the condition you are being treated for and will be decided by your doctor. Follow your doctor’s instructions carefully to get maximum benefit from Vitamin D.

Vitamin D should not be taken by patients who are allergic to cholecalciferol, patients with increased levels of calcium in the blood or if there is presence of calcium in the urine. Its use should be avoided by patients who have kidney stones or have severe kidney problems. Therefore, consult your doctor before taking Vitamin D.

Taking too much Vitamin D for a long period of time may increase the levels of calcium in the blood (hypercalcemia). This may cause weakness, fatigue, vomiting, diarrhea, sluggishness, kidney stones, increased blood pressure and growth retardation in children. If you experience any such symptoms consult your doctor.

Vitamin D is a form of vitamin D which is used as a supplement in patients with vitamin D deficiency. The daily requirement of Vitamin D is 4000 IU/day. Since your diet may not be able to meet the daily requirement of Vitamin D, therefore you may need 1000 - 3000 IU/day of supplements of Vitamin D.

Low levels of Vitamin D may cause rickets in children and osteomalacia in adults. Vitamin D deficiency may also increase the risk of diabetes mellitus 1, high blood pressure, depression, some cancers and osteoporosis.