Vitamin D Supplements: 4 Warning Signs You May Be Taking Too Much

symptoms of vitamin D toxicity. ([ODs][2])

4. Kidney Stones or Kidney Problems

One of the more serious consequences of excessive vitamin D is kidney damage.

High calcium levels can contribute to:

• Kidney stones
• Kidney pain
• Reduced kidney function
• In severe cases, kidney failure

Mayo Clinic specifically notes that vitamin D toxicity can lead to kidney stones and kidney trouble. ([Mayo Clinic][1])

How Much Vitamin D Is Too Much?

For most adults, the tolerable upper intake level is 4,000 IU (100 micrograms) per day from all sources unless a healthcare professional recommends a higher dose for a specific reason. ([ODs][2])

That