GetHealth Tips
Of course, nausea is very common and has many causes. It becomes more relevant if you are taking high-dose vitamin D and also develop other symptoms on this list.
2. Unusual Weakness or Fatigue
Too much vitamin D can sometimes lead to muscle weakness, tiredness, or a general feeling of being unwell.
Possible symptoms include:
- Muscle weakness
- Low energy
- Feeling unusually tired
- Difficulty concentrating
The NIH lists muscle weakness and neuropsychiatric changes among possible effects of vitamin D toxicity-related hypercalcemia. ([ODs][2])
3. Excessive Thirst and Frequent Urination
High calcium levels can make you unusually thirsty and cause more frequent urination.
You may notice that you:
- Drink much more than usual
- Wake up at night to urinate
- Urinate larger amounts
- Feel dehydrated despite drinking fluidsThese are recognized 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:
