Why Too Much Vitamin D Can Be Harmful
Ananya Mishra | Fri, 31 Oct 2025
Vitamin D is essential for healthy bones and overall well being, but taking too much can harm the body. While sunlight and certain foods are safe ways to get Vitamin D, excessive supplement intake can lead to Vitamin D toxicity. This causes too much calcium in the blood, leading to kidney stones, weakness, nausea and bone pain. Self-medicating with supplements can be dangerous so it is always best to get tested and consult a doctor before taking them.
Vitamin D Overdose
( Image credit : Freepik )
Vitamin D is an essential nutrient for the body. It helps in keeping bones and teeth strong. These days a lot of people face deficiency of Vitamin D due to poor diet and lifestyle. They usually take supplements to fulfill this deficiency.
But overdosing on Vitamin D can cause more harm than good. It can lead to vitamin D toxicity which ends up being harmful for overall health.
How to Get Vitamin D
Vitamin D should be taken through natural sources like sunlight and diet. Foods like fatty fish (salmon, sardines, mackerel), eggs and milk are a good source of vitamin D.

It is not advised to take vitamin D supplements by yourself. These medicines should be taken only when prescribed by the doctor.
Vitamin D overdose can lead to very serious health complications. Excess of Vitamin D can cause the levels of calcium to go beyond limit. If this is not looked into on time it can cause kidney related problems like kidney stones and even kidney failure. Excess of calcium leads to pain in bones also.

Vitamin D usually happens because of taking too many vitamin D supplements. It can cause serious health problems especially in the kidney and bones.
Common symptoms for high vitamin D levels are nausea, vomiting, weakness, constipation, frequent urination and dehydration. It is best to visit the doctor in such cases and get treated as soon as possible.
Self medication for Vitamin D is not a good idea. Natural sources like sunlight and food are safer and more effective. It is always smart to get regular blood tests done and properly get checked by an expert doctor and get a prescription when needed.
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Frequently Asked Questions (FAQs)
But overdosing on Vitamin D can cause more harm than good. It can lead to vitamin D toxicity which ends up being harmful for overall health.
How to Get Vitamin D
Get Sunlight
( Image credit : Freepik )
Vitamin D should be taken through natural sources like sunlight and diet. Foods like fatty fish (salmon, sardines, mackerel), eggs and milk are a good source of vitamin D.
Foods for Vitamin D
( Image credit : Freepik )
It is not advised to take vitamin D supplements by yourself. These medicines should be taken only when prescribed by the doctor.
Harmful Effects of Vitamin D Overdose
Signs of Vitamin D Overdose
Vomiting
( Image credit : Freepik )
Vitamin D usually happens because of taking too many vitamin D supplements. It can cause serious health problems especially in the kidney and bones.
Common symptoms for high vitamin D levels are nausea, vomiting, weakness, constipation, frequent urination and dehydration. It is best to visit the doctor in such cases and get treated as soon as possible.
Self medication for Vitamin D is not a good idea. Natural sources like sunlight and food are safer and more effective. It is always smart to get regular blood tests done and properly get checked by an expert doctor and get a prescription when needed.
Unlock insightful tips and inspiration on personal growth, productivity, and well-being. Stay motivated and updated with the latest at My Life XP.
Frequently Asked Questions (FAQs)
- Can taking too much Vitamin D be harmful?
Yes, taking too much Vitamin D can raise calcium levels in the blood and cause kidney problems, bone pain and nausea. - Can Vitamin D cause kidney damage?
Yes, excess Vitamin D can increase calcium buildup leading to kidney stones or even kidney failure. - How should I get Vitamin D safely?
Get Vitamin D naturally through sunlight, fish, eggs, and milk, or only take supplements prescribed by a doctor. - What are the symptoms of Vitamin D overdose?
Symptoms include vomiting, weakness, frequent urination, dehydration and constipation. - Can you get too much vitamin D from the sun?
No, you cannot get too much Vitamin D from sunlight.