Vitamin D toxicity is almost always caused by taking too high a dose of vitamin D supplements, rather than from eating too much vitamin D -- rich food or from sun exposure. When you take in too much supplemental vitamin D, the levels of calcium in your blood can get too high. The “safe upper limit” of vitamin D for adults is 4,000 international units (IU) a day.
- Q What role do vitamin D levels play in improving my heart’s health?
- Q Does vitamin D help with familial hypophosphatemia?
- Q Does taking vitamin D3 help athletes perform better?
- Q Should I give my child a vitamin D supplement?
- Q Does vitamin D help with hyperparathyroidism due to low vitamin D levels?
- Q Is there a link if 10 coworkers have low vitamin d levels?