Vitamin D toxicity, also called hypervitaminosis D, is a rare but potentially serious condition that occurs when you have excessive amounts of vitamin D in your body. Show
Vitamin D toxicity is usually caused by large doses of vitamin D supplements — not by diet or sun exposure. That's because your body regulates the amount of vitamin D produced by sun exposure, and even fortified foods don't contain large amounts of vitamin D. The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination. Vitamin D toxicity might progress to bone pain and kidney problems, such as the formation of calcium stones. Treatment includes stopping vitamin D intake and restricting dietary calcium. Your doctor might also prescribe intravenous fluids and medications, such as corticosteroids or bisphosphonates. Taking 60,000 international units (IU) a day of vitamin D for several months has been shown to cause toxicity. This level is many times higher than the U.S. Recommended Dietary Allowance (RDA) for most adults of 600 IU of vitamin D a day. 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. As always, talk to your doctor before taking vitamin and mineral supplements. Sign up for free, and stay up to date on research advancements, health tips and
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With about one in four Americans having low levels of vitamin D, it's no surprise that many people may consider a supplement, especially since very few foods contain the essential nutrient. However, vitamin D supplements can come with side effects, especially if you take a high dose. That's because vitamin D is fat-soluble, meaning it can accumulate in the body's fat stores, possibly reaching toxic levels. Here's how to tell if you're taking too much vitamin D and what side effects it can cause. How much vitamin D is too much?To avoid vitamin D toxicity, most adults should not take more than 4,000 IU/day of vitamin D supplements. Therefore, if you're taking a vitamin D supplement you should have your blood levels checked every three to six months, according to Rajsree Nambudripad, MD, an integrative medicine specialist with Providence St. Jude Medical Center. A healthy range for vitamin D blood concentration is between 60-80 ng/ml. So, you should stop taking any vitamin D supplements if blood levels exceed 100 ng/ml, which is when side effects may appear, says Nambudripad. Side effects of vitamin D supplementsVitamin D toxicity — which includes symptoms like confusion and abdominal pain — occurs when vitamin D reaches a concentration of at least 150 ng/ml in a person's blood. Potential side effects of vitamin D toxicity include:
However, vitamin D toxicity is rare: "Generally you have to take a lot of vitamin D daily before you start to have toxic effects," says Erin R. McNeely, MD, an internist with Spectrum Health. Excess vitamin D and calciumSome of the side effects of vitamin D toxicity are due to and/or exacerbated by the fact too much vitamin D can cause hypercalcemia, or when blood levels of calcium are too high. That's because vitamin D facilitates the absorption of calcium. If you experience any side effects of vitamin D toxicity, McNeely recommends stopping your supplement and avoiding calcium-rich foods like dairy, which can contribute to hypercalcemia. In most cases, that's all the treatment that is needed. Yet, some with hypercalcemia might also need IV hydration. Once treatment is initiated, most people should start to feel better, but it may take awhile. For example, a 2011 case report of two people who took 1,000 times the recommended daily dose of vitamin D found that they had elevated calcium levels for a year, even after stopping supplementation and were experiencing symptoms. Though, after a year, their symptoms resolved and they had no long-term health consequences. Insider's takeawayMany people can benefit from vitamin D supplements, but it's a good idea to talk to your doctor or medical professional before taking high doses. They can help determine the right dose for you, and help you avoid side effects like nausea or confusion. If you're taking more than 2,000 IU of vitamin D a day, be sure to get blood work every 3-6 months to make sure you're not building up too much vitamin D in your blood.
Kelly Burch is a New Hampshire-based freelance journalist writing about finances, health, family, and more. Her work has appeared in The Washington Post, The Chicago Tribune, and Forbes, among others. Follow her on Facebook or Twitter, and or learn more here. Read more Read less What are the side effects of high doses of vitamin D3?The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination. Vitamin D toxicity might progress to bone pain and kidney problems, such as the formation of calcium stones.
Is 50000 units of vitamin D3 too much?In summary, long-term supplementation with vitamin D3 in doses ranging from 5000 to 50,000 IUs/day appears to be safe.
What are the side effects of taking 50 000 units of vitamin D weekly?Too much vitamin D can cause harmful high calcium levels. Tell your doctor right away if any of these signs of high vitamin D/calcium levels occur: nausea/vomiting, constipation, loss of appetite, increased thirst, increased urination, mental/mood changes, unusual tiredness.
What happens when you take 50 000 IU vitamin D?Too much vitamin D can lead to loss of appetite, nausea, vomiting, fatigue, dizziness, excessive thirst, and frequent urination. These symptoms are not just uncomfortable but can also be a threat to a person's health. People should avoid taking supplements unless advised by a healthcare provider.
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Side effects of vitamin d3 50 000 units
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