Side Effects of Too Much Vitamin D3
Although vitamins are essential for your overall health, you can take too much. Taking too much of nutrients like vitamin D3 can have side effects. These side effects can be mild or severe depending on how much of the vitamin you take.
Too Much Blood Calcium
If you take too much vitamin D3, you may experience an increase of calcium in the blood. Increased blood calcium causes:
- Nausea
- Vomiting
- Loss of appetite or weight loss
- Excessive thirst
- Excessive urination or urge to urinate
- Dry mouth
- Fatigue
- Headache
Over Active Thyroid
Your thyroid performs many body functions with the help of vitamin D3. When you have too much vitamin, it can cause hyperthyroidism. An over active thyroid causes:
- Increased bowel movements
- Excessive thirst
- Nervous conditions
- Weight gain
- Goiter, enlarged thyroids
- Increased sweating and heat in the body
Low Blood Sugar
An increase in vitamin D lowers your blood sugar levels. Blood sugar gives you energy to stay active and not enough lowers your body's ability to produce energy. If you have a diabetic condition, you may want to consult with a physician prior to taking vitamin D supplements. When you do not have enough sugar in the blood circulation, you experience:
- Tired
- Increase thirst
- Headache
Liver Metabolism
Since the liver processes vitamin D, too much can cause problems if you have liver disease or problems. It causes the liver to work harder to absorb and process the vitamin. Liver problems are:
- Jaundice or yellowing of the skin and eyes
- Damage, liver becomes infected
- Failure, liver ceases to function