Symptoms of vitamin D toxicity are directly related to excess calcium in the blood, which can cause nausea, vomiting, loss of appetite, frequent urination , weakness, and bone pain. Over time, the extra calcium can form deposits in the arteries and soft tissue instead of in the bones. Ultimately, this can cause kidney stones and may contribute to heart damage. To diagnose vitamin D toxicity, a physician will administer a blood test that will show how much calcium is in the blood.
If a person has vitamin D toxicity, then calcium levels will be abnormally high. Ross notes that taking consistently high levels of vitamin D over long periods of time may not cause apparent toxicity in the short term, but may contribute to a higher risk of common symptoms further down the line. If a person shows signs of vitamin D toxicity, the first step toward treating it is to immediately stop taking any and all vitamin D and calcium supplements , as well as reducing intake of foods rich in vitamin D like salmon and cod liver oil.
Doctors may also administer medications to help the body metabolize less vitamin D and pass more calcium. You may also be prescribed bone resorption inhibitors. These medications are usually used to treat osteoporosis because they prevent the release of calcium into the bloodstream. However, Price's research has shown that bone resorption inhibitors may also prevent acute episodes of vitamin D toxicity. These inhibitors, he says, could be useful to prevent calcification of soft tissue in patients who, for health reasons, can't reduce their intake of vitamin D.
For most people, though, the answer will be to simply stop your supplements, which will allow your body to process the excess calcium and, over weeks or months , return to normal. Vitamin D is a nutrient that helps your body absorb and regulate calcium.
Therefore, it plays an essential role in helping you grow and maintain bone tissue throughout life. Our bodies get vitamin D in two ways: through sun exposure and from certain foods. How much you need depends on your age, according to the National Institutes of Health. For example, adults require less than people over 70, who produce less vitamin D through their skin.
The National Institutes of Health recommend that most adults need international units IU each day to cover their basic needs for bone health. However, for overall health, it's best to get somewhere between IU to 4, IU per day.
Fish is a great way to cover your bases , while vegans and vegetarians can look to almond milk and mushrooms. Three ounces of fatty fish, like salmon, or a cup of portobello mushrooms will take care of your daily vitamin D needs. Ross says that if you occasionally consume the maximum recommended amount — 4, IU — it won't hurt you. Vitamin D toxicity typically develops from over-supplementation, as opposed to diet or sun exposure.
In some cases, healthcare providers may prescribe higher doses to treat a vitamin D deficiency, though these numbers provide a good guideline. Of course, talk with your healthcare provider to learn what amount of vitamin D intake they recommend for you. Micrograms may be abbreviated as "mcg. However, labels often do list the percent Daily Value DV , which reflects the amount of vitamin D in a serving of that food as a percentage of IU.
Finally, you can also get a sense of the vitamin D content of various kinds of food by visiting the National Institutes of Health's resource on vitamin D see Table 3. If vitamin D toxicity occurs, your healthcare provider may suggest restricting your dietary calcium intake. Treatment may also include discontinuing the use of any vitamin D supplement—at least temporarily. In food, vitamin D can be found in beef liver, egg yolks, and fatty fish like salmon and tuna. There are also many fortified foods, like milk and dairy products, that provide your body with vitamin D.
Studies have even shown that low vitamin D levels may be connected to higher risks of heart disease, diabetes, cancer, mood disorders, and dementia. Doses higher than the RDA are sometimes used to treat medical problems such as vitamin D deficiency, but these are given only under the care of a doctor for a specified time frame.
Blood levels should be monitored while someone is taking high doses of vitamin D. Katherine Zeratsky, R. There is a problem with information submitted for this request. Sign up for free, and stay up-to-date on research advancements, health tips and current health topics, like COVID, plus expert advice on managing your health. Error Email field is required. Error Include a valid email address. To provide you with the most relevant and helpful information and to understand which information is beneficial, we may combine your e-mail and website usage information with other information we have about you.
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