Vitamin D3 Toxicity Symptoms

This blog post will walk you through: vitamin d3 toxicity symptoms. Don’t worry, we’ve got all the answers about this subject.

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Answer From Katherine Zeratsky, R.D., L.D. This level is many times higher than the U.S. Get the latest health information from Mayo Clinic’s experts.
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1. Elevated Blood Levels

Recommendations on optimal vitamin D levels vary, but research suggests that levels between 30–60 ng/mL are likely optimal and may help protect against illness and disease Most cases of vitamin D toxicity are caused by inappropriate supplement dosing and prescription errors.
Her vitamin D levels were discovered to be 265 ng/mL Note that 130,000 IU is over 30 times the generally recommended safe upper limit of 4,000 IU per day. Even though toxicity is unlikely if you keep your daily intake levels below 10,000 IU per day and avoid excessively high intakes of vitamin D supplements, experts recommend that people with typical vitamin D levels do not exceed 4,000 IU of vitamin D per day This will help you avoid potential inappropriate or dangerous dosing. Summary Vitamin D levels greater than 100 ng/mL may be harmful. Toxicity symptoms have been reported at extremely high blood levels in cases where people took megadoses (very high doses) of vitamin D supplements for extended periods of time.

Symptoms

This can affect bones, tissues, and other organs. Hypervitaminosis D is a rare but potentially serious condition. It occurs when you take in too much vitamin D. It’s usually the result of taking high-dose vitamin D supplements.
However, there have been cases reported due to tanning bed use . And there has been an increase in overall hypervitaminosis D cases in the past few years. Estrogen therapy, taking antacids for a long time, and isoniazide, an antituberculosis medication, can also cause elevated levels of vitamin D.

The Mayo Clinic states that the recommended dietary allowance of vitamin D for most adults is 600 international units a day (IU).
You are more likely to develop hypervitaminosis D if you take vitamin D supplements and have other existing health problems, such a.

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Vitamin D is metabolized by the liver to 25(OH)D (calcifediol, calcidiol, 25-hydroxycholecalciferol, or 25-hydroxyvitamin D), which is then converted by the kidneys to 1,25-dihydroxyvitamin D (1,25-dihydroxycholecalciferol, calcitriol, or active vitamin D hormone). The conversion to 1,25-dihydroxyvitamin D is regulated by its own concentration, parathyroid hormone (PTH), and serum concentrations of calcium and phosphat.

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