Vitamin D3 Side Effects

Possible side effects of vitamin D3 are listed below. Call your doctor if these side effects are severe or do not go away in a few days.

• Nausea
• Vomiting
• Constipation
• Loss of appetite
• Weight loss

The above list may not include all the potential side effects of vitamin D3. Tell your doctor if the side effects are unusual, severe, or persistent. You can also report unusual side effects to the Food and Drug Administration at 1-800-FDA-1088.

Vitamin D3 Overdose: In case of an overdose of vitamin D3, call your doctor immediately. You can also call the local poison control center or national poison control center at 1-800-222-1222. If a person has difficulty breathing, cannot be awakened, or has had a seizure, call 911. Vitamin D3 overdose symptoms may include nausea, vomiting, constipation, weakness, loss of appetite, and weight loss.

Source: FDA