Can you take too much Vitamin D? Yes, you can take too much Vitamin D and some of the side effects are stomach discomfort, kidney problems, elevated blood levels, etc. Excessive Vitamin D can show up in a blood test, so it is easy to know if you are taking too much through that type of test.

Can you take too much Vitamin D? iStock-photo credit: Trifonenko

For your Vitamin D levels to reach toxicity it has to exceed 100 nanograms per milliliter, (ML). Vitamin D deficiency is more common than taking too much Vitamin D. Most Americans don’t get enough Vitamin D and so they resort to Vitamin D supplements to help balance out their Vitamin D levels.

Some of the symptoms of Vitamin D toxicity is the following:

  • Loss of appetite
  • Excessive urination
  • Dehydration
  • Fatigue
  • High blood pressure
  • Dizziness

Vitamin D toxicity is typically related to hypercalcemia which means high blood calcium levels. The normal range of blood calcium levels is 8.5 to 10.8.

Healthcare professionals recommend people who are low on Vitamin D to take a high dosage of 50,000 IU for 8 weeks. Typically, your doctor will decide how much Vitamin D you should take based on your present levels. Try avoiding taking a high dosage of Vitamin D supplements unless your medical provider advises you to take it.

Vitamin toxicity typically happens through accidental overdose, prescription errors and misuse of high dosage of Vitamin D supplements.

The three main functions of Vitamin D in the body are the following:

  • Absorb calcium.
  • Help to prevent Osteoporosis.
  • And help your muscles and nerves work properly.

And it is essential for your immune system to fight off bacterial and viral infections.

The Bottom Line it is not common to hear of people taking too much Vitamin D and it only happens when there is an accidental overdose, prescription errors or misuse of high dosage of Vitamin D supplements. What is more common is Vitamin D deficiency as opposed to Vitamin D toxicity.

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References

  • NIH- https://ods.od.nih.gov/factsheets/VitaminD-Consumer/
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