One doctor told my husband that everyone living in the Northern Hemisphere should take a vitamin D supplement every day, even in the summer. What do you recommend? ANSWER: Understanding how much vitamin D you need can be confusing because there are different recommendations about how much vitamin D adults should get. Because few foods contain vitamin D naturally, eating foods fortified with vitamin D and taking a supplement may be beneficial. Vitamin D is important because it helps your body sustain normal levels of calcium and phosphorus.
Because it works as a key that allows your body to absorb calcium, vitamin D plays a critical role in forming and maintaining healthy bones. It also helps keep your muscles, nerves and immune system healthy. Research suggests that consistently getting enough vitamin D can significantly lower the risk for the bone-thinning disease osteoporosis. Low vitamin D also is associated with falls, multiple sclerosis , rheumatoid arthritis , chronic pain, diabetes , high blood pressure , cardiovascular disease and some cancers.
The main consequence of vitamin D toxicity is hypercalcemia, with symptoms including nausea, vomiting, weakness, and kidney failure. Treatment involves limiting all vitamin D intake and sun exposure. Large doses of vitamin D can be harmful, even though there may not be immediate symptoms of toxicity. Vitamin D is very unlikely to cause severe symptoms of toxicity right away, and symptoms may take months or years to show up. There have been reports of people taking very large doses of vitamin D for months without symptoms, yet blood tests revealed severe hypercalcemia and symptoms of kidney failure The harmful effects of vitamin D are very complex.
High doses of vitamin D can cause hypercalcemia without toxicity symptoms, but can also cause toxicity symptoms without hypercalcemia To be safe, do not exceed the 4, IU mcg upper limit without consulting a doctor or dietitian.
Vitamin D toxicity usually develops over time, and the harmful effects are very complex. Large doses may cause damage, despite a lack of noticeable symptoms.
It has been hypothesized that two other fat-soluble vitamins, vitamin K and vitamin A, may play important roles in vitamin D toxicity. Another nutrient that may be important is magnesium. Taking vitamin A, vitamin K, and magnesium with vitamin D may therefore improve bone function and reduce the chances of other tissues becoming calcified 34 , 35 , These may reduce the risk of adverse effects from a higher vitamin D intake.
People respond very differently to high doses of vitamin D. Vitamin D toxicity can have devastating health effects, which may not show up until months or even years after starting to take high doses.
Larger doses have not been linked with any additional health benefits, and may therefore be completely unnecessary. An occasional high dose of vitamin D is sometimes used to treat a deficiency, but always consult with a doctor or dietitian before taking a large dose. Vitamin D is very important for your health, but it is possible to get too much of it. This article explores 6 side effects of taking too much vitamin…. Here are eight symptoms that may indicate you have a vitamin D deficiency, as well as causes, treatments, and more.
Vitamins D and K are crucial for your health, but some say vitamin D is harmful to those low in vitamin K. Here's a look at the science behind this…. This article lets you know what dosage of vitamin D is best.
Nutrient deficiencies may occur with almost every nutrient, but some are more likely than others. Here are 7 incredibly common nutrient deficiencies. The maximum quantity of vitamin D that a person can take before it causes health problems is 4, IU daily. Symptoms of having too much vitamin D in the blood include:. Taking too much vitamin D can raise the level of calcium in the blood. This can cause health problems such as mental confusion and heart problems. People who are taking specific medication should not take a vitamin D supplement.
This is because it can interact with these medicines and stop them from working. Examples include some corticosteroids, weight-loss drugs, and medication for epilepsy. If a person is concerned that they may have a vitamin D deficiency, a doctor can arrange for a blood test to measure their vitamin D levels. Many people get enough vitamin D from sunlight and fortified foods. A person who lives in the Northern Hemisphere may choose to take a supplement during the winter months.
If a person has taken too much vitamin D in supplement form, they may have symptoms of vitamin D toxicity. Seeking medical advice can help to safeguard long-term health. People get vitamin D from a variety of foods and from spending time outdoors in sunlight. Vitamin D is an essential nutrient that plays a role in many…. Vitamin D is a crucial nutrient for bone health.
Some studies suggest a link between vitamin D deficiency and joint or muscle pain, including…. People need vitamin D for muscle and bone health. Limited sun exposure and low dietary intake can lead to brittle bones, mood changes, and chronic…. A look at deficiency in biotin, the B vitamin that helps the body convert carbohydrates.
Included is detail on how it affects pregnancy and treatment. Are you getting enough vitamin D? Medically reviewed by Dena Westphalen, Pharm. What is vitamin D? When to see a doctor Vitamin D is beneficial to health, but guidelines on how much to take are not always clear. Share on Pinterest Benefits of vitamin D include helping the body absorb calcium and supporting the immune system. Can you get enough vitamin D from the sun alone? What is the medical definition of vitamin D deficiency?
Share on Pinterest Vitamin D deficiency over a lifetime can cause osteoporosis. Recommended daily intake. Good sources of vitamin D.
0コメント