Overdose of Vitamin D
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Vitamin D is an essential nutrient with therapeutic use in some cases, but that does not mean it is devoid of potential toxicity. Ingestion of vitamins in quantities larger than recommended for the maintenance of good health leads to overdose of vitamin D. It causes toxicity and varies from individual to individual according to one’s metabolism. The symptoms of overdose of vitamin D may also vary.
Vitamin D is responsible for two important functions. Vitamin D is a fat-soluble vitamin, which promotes utilization of calcium and phosphorus in the body by enhancing absorption of these two minerals from the intestine. It is required for normal mineralisation of bone and it plays an essential role in the homeostatic regulation of plasma calcium concentration.
There are two sources of Vitamin D in humans. It is either obtained through ingestion of appropriate foods in the diet or photolysis of 7-dehydrocholesterol in the skin. Once vitamin D is absorbed, it gets bound to a specific globulin and reaches the blood to the liver.
The vitamin D requirements do not vary just with age, pregnancy or lactation, it also varies with the quality of the diet one is taking. Any recommendation for vitamin D supplementation must be made only after careful scrutiny of the diet. The indiscriminate use of over-the-counter vitamin D preparations for irrational reasons can be dangerous. People must be made aware of the potential hazards of overdose.
Some symptoms of overdose of vitamin D are experiencing weakness in the muscles, nausea, vomiting, poor appetite, constipation, weakness, and weight loss. The overdose can also raise blood levels of calcium. It can give rise to mental confusion. High blood levels of calcium can cause abnormalities in heart rhythms. Cases have been reported of Calcinosis also. Calcinosis is the deposition of calcium and phosphate in the body’s soft tissues such as the kidney. They can be caused by vitamin D toxicity.
If there is a feeling that you may be suffering from vitamin D overdose, its best to visit a doctor. As usual no depending on self-help, help from person who has undergone it himself or another round of `over-the-counter’ medicines. Your body’ working may be best observed by the doctor and medicines or treatments prescribed accordingly will bear results that are faster and more effective.
I am amazed! First Purva Mewar quotes Dr Veith (whose challenge has never been taken up), then goes on to warn everybody of the toxicity of vitamin D.
If vitamin D is so toxic WHERE ARE THE BODIES.
Perhaps he/she is getting vitamin D2 mixed up with vitamin D3.
Is he/she a doctor by the way, if so who pays for the research. I take it the comments that are made in the article have come from research. In the article there is mention of reported cases of Calcinosis. Calcinosis is the deposition of calcium and phosphate in the body’s soft tissues such as the kidney. They can be caused by vitamin D toxicity. Again where is the evidence. You just cannot says a substance is dangerous without stating the source.
I am in my late 70s and take 5,000 IU vitamin D3 a day. I have been amazed how much more muscle definition I have and I feel so much stronger. If you have full body exposure in the sun in the middle of summer your body can make 20,000 IU of vitamin D in around 30 minutes. If he/she is correct then we should all be dead or at least suffering from all those ailments he/she is touting.
Heaven preserve us from experts
You should research this a little better. Our bodies can take the natural vitamin D from the sun as you mentioned but when it comes to vitamins there is a limit. As your Doctor to give you the limit with vitamins. Everybody’s body is different and maybe you can withsand more than the normal person and or maybe you don’t have the effects now. I would really look into that if I was you.
Sandra
i take 2000 iu s of vitamin d3 daily i have been very anxious lately and somewhat rapid heartbeat could this be caused by to much vitamind3????