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How Much Vitamin D3 Is Safe

How Much Vitamin D Does My Child Need

How Much Vitamin D3 Should You Take?

Vitamin D is measured in international units .

  • Babies younger than 1 year old need 400 IU of vitamin D a day. Baby formula has 400 IU per liter, so babies who drink at least 32 ounces of formula each day get enough. If your baby drinks only breast milk or gets less than 32 ounces of formula each day, ask your health care provider about giving your baby a vitamin D supplement.
  • Kids older than 1 year need 600 IU or more of vitamin D a day. Health care providers often want healthy kids to take 600 to 1,000 IU daily.

Some kids might need more vitamin D, such as those who:

  • have certain medical problems

Why Is Vitamin D Important

Vitamin D is important for the health of your bones, muscles and teeth. This is because it helps you absorb calcium and phosphorous from food.

A deficiency can cause weakened bones this can lead to rickets in children and osteomalacia in adults.

Vitamin D also plays an important role in keeping your immune system functioning properly. This is especially key during winter, when there are more colds and bugs going around.

How Much Vitamin D Do You Need

Despite widespread assertions in the popular and scientific press that many Americans have a vitamin D deficiency, the term “deficiency” isn’t strictly accurate. The official definition of a vitamin deficiency means that specific health problems stem solely from the lack of a specific nutrient. An actual vitamin D deficiency results in bone disease, such as rickets, which is rare in the United States.

On the other hand, lower-than-optimal levels of specific vitamins, including vitamin D, may increase your risk of numerous health problems, even though they are not solely responsible for these problems. “Insufficiency” may be a better term for these lower levels than “vitamin D deficiency”.

So far, the most clearly established benefit of vitamin D is that it helps the body absorb calcium and therefore promotes healthy bones. However, a steady drumbeat of studies beginning in the 1980s started to build a case that low blood levels of D were connected with a variety of chronic health problems, leading to claims by a number of researchers that the RDA for D was way too low. The confusion and controversy surrounding optimal vitamin D intake and blood values prompted the U.S. and Canadian governments to request that the Institute of Medicine review the evidence on vitamin D and calcium and update the DRIs.

To learn more about the vitamins and minerals you need to stay healthy, read , a Special Health Report from Harvard Medical School.

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What Happens If I Take Too Much Vitamin D

Taking too many vitamin D supplements over a long period of time can cause too much calcium to build up in the body . This can weaken the bones and damage the kidneys and the heart.

If you choose to take vitamin D supplements, 10 micrograms a day will be enough for most people.

Do not take more than 100 micrograms of vitamin D a day as it could be harmful. This applies to adults, including pregnant and breastfeeding women and the elderly, and children aged 11 to 17 years.

Children aged 1 to 10 years should not have more than 50 micrograms a day. Infants under 12 months should not have more than 25 micrograms a day.

Some people have medical conditions that mean they may not be able to safely take as much. If in doubt, you should consult your doctor.

If your doctor has recommended you take a different amount of vitamin D, you should follow their advice.

You cannot overdose on vitamin D through exposure to sunlight. But always remember to cover up or protect your skin if you’re out in the sun for long periods to reduce the risk of skin damage and skin cancer.

Page last reviewed: 03 August 2020 Next review due: 03 August 2023

Vitamin D Toxicity: How Does It Happen

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Vitamin D toxicity implies that vitamin D levels in the body are so high that they cause harm.

Its also termed hypervitaminosis D.

Vitamin D is a fat-soluble vitamin. In contrast to water-soluble vitamins, the body has no easy way of getting rid of fat-soluble vitamins.

For this reason, excessive amounts may build up inside the body.

The exact mechanism behind vitamin D toxicity is complicated and isnt fully understood at this point.

However, we know that the active form of vitamin D functions in a similar way as a steroid hormone.

It travels inside cells, telling them to turn genes on or off.

Usually, most of the bodys vitamin D is in storage, bound to either vitamin D receptors or carrier proteins. Very little free vitamin D is available (

  • Sufficient: 2030 ng/mL, or 5075 nmol/L
  • Safe upper limit: 60 ng/mL, or 150 nmol/L
  • Toxic: above 150 ng/mL, or 375 nmol/L

A daily vitamin D intake of 1,0004,000 IU should be enough to ensure optimal blood levels for most people.

Summary

Blood levels in the range of 2030 ng/mL are usually considered sufficient. The safe upper limit is considered to be about 60 ng/mL, but people with symptoms of toxicity usually have levels above 150 ng/mL.

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How Much Vitamin D Do I Need

In November 2010, the Institute of Medicine’s expert committee set a new “dietary reference intake” for vitamin D.

Assuming that a person gets virtually no vitamin D from sunshine — and that this person gets adequate amounts of calcium — the IOM committee recommends getting the following amounts of vitamin D from diet or supplements :

  • Infants age 0 to 6 months: adequate intake, 400 IU/day maximum safe upper level of intake, 1,000 IU/day
  • Infants age 6 to 12 months: adequate intake, 400 IU/day maximum safe upper level of intake, 1,500 IU/day
  • Age 1-3 years: adequate intake, 600 IU/day maximum safe upper level of intake, 2,500 IU/day
  • Age 4-8 years: adequate intake, 600 IU/day maximum safe upper level of intake, 3,000 IU/day
  • Age 9-70: adequate intake, 600 IU/day maximum safe upper level of intake, 4,000 IU/day
  • Age 71+ years: adequate intake, 800 IU/day maximum safe upper level of intake, 4,000 IU/day

That’s not enough, says Boston University vitamin D expert Michael Holick, MD, PhD, professor of medicine, physiology, and biophysics, Boston University Medical Center. Holick recommends a dose of 1,000 IU a day of vitamin D for both infants and adults — unless they’re getting plenty of safe sun exposure.

In 2008, the American Academy of Pediatrics recommended that breastfed infants receive 400 IU of vitamin D every day until they are weaned. This doubled the AAP’s previous recommendation.

Can You Get Enough Vitamin D From The Sun Alone

Some people will be able to get enough vitamin D just from sunlight. However, it depends on where in the world they live, the time of year, the time of day, and their skin color.

People who live nearer the equator get more sun exposure. In the Northern Hemisphere, a person may not get sufficient vitamin D from sunlight during the winter.

The sun is usually strongest between 11:00 a.m. and 3:00 p.m. In the summer, a person does not need to be out in the sun for very long during this period to make enough vitamin D.

The amount of melanin a persons skin contains affects how much vitamin D they can make. Less melanin results in lighter skin, which does not protect as well against harmful ultraviolet rays.

People with more melanin in their skin have better protection from the sun, but take longer to make vitamin D. In the United States, the Centers for Disease Control and Prevention found that Mexican-Americans and non-Hispanic black people are more likely to have vitamin D deficiency.

These varied factors make it difficult to recommend how much sunlight a person should get to make the vitamin D that their body needs.

The Vitamin D Council gives some examples:

  • At noon during summer in Miami, someone with a medium skin tone would need to expose one-quarter of their skin to sunlight for 6 minutes.
  • At noon during summer in Boston, someone with a darker skin tone would need to expose one-quarter of their skin to sunlight for 2 hours.
Age
  • egg yolk
  • beef liver

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Common Uses Of Vitamin D3

Vitamin D3 helps support immune health as well as various other important functions in the body. As part of your daily health routine, regular D3 supplementation can help protect you against seasonal and environmental threats. Additionally, by helping support immune cell function and promoting healthy immune responses, D3 can help reduce common oxidative stress.

The role that vitamin D3 plays in supporting bone strength allows it to be an important addition to a daily routine for those looking to maintain strong, healthy bones. As part of a healthy lifestyle, D3 can help achieve optimal peak bone mass to support a healthy musculoskeletal structure at any age.

Finally, vitamin D3 can be used to support heart health. A lack of vitamin D3 in the diet can be associated with high cholesterol, so with regular supplementation, you can promote healthy cholesterol levels to support heart and arterial health.

Good Sources Of Vitamin D

Vitamin D3, how much is good enough?

From about late March/early April to the end of September, most people should be able to make all the vitamin D they need from sunlight.

The body creates vitamin D from direct sunlight on the skin when outdoors.

But between October and early March we do not make enough vitamin D from sunlight. Read more about vitamin D and sunlight.

Vitamin D is also found in a small number of foods.

  • fortified foods such as some fat spreads and breakfast cereals

Another source of vitamin D is dietary supplements.

In the UK, cows’ milk is generally not a good source of vitamin D because it is not fortified, as it is in some other countries.

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Prostate Cancer Nutrition And Dietary Supplements Patient Version

On This Page

Men in the United States get prostate cancer more than any other type of cancer except skin cancer. It occurs mainly in older men. In the United States, about 1 in every 9 men will be diagnosed with prostate cancer during his lifetime. Most men with prostate cancer do not die of it.

Complementary and alternative medicine is a form of treatment used in addition to or instead of standard treatments.

CAM use among men with prostate cancer is common. Studies of why men with prostate cancer decide to use CAM show that their choice is based on medical history, beliefs about the safety and side effects of CAM compared to standard treatments, and a need to feel in control of their treatment.

CAM treatments used by men with prostate cancer include certain foods, dietary supplements, herbs, vitamins, and minerals.

Different types of research have been done to study the use of CAM in prostate cancer. These study types include the following:

This PDQ summary has sections about the use of specific foods and dietary supplements to prevent or treat prostate cancer:

Each section includes the following information for each food or dietary supplement:

  • How it is given or taken.
  • Results of studies done in people.
  • Side effects or risks.

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How Much Vitamin D Should Breastfeeding Mother Take

How much vitamin d should breastfeeding mother take? An adequate intake for nursing mothers is not the 400 IU/d the IOM recommends, but is instead in the range of 5,000-6,000 IU/d, taken daily. If they get that much, they will meet not only their own needs, but their infants as well.

How much vitamin D should you take while breastfeeding? Human breastmilk is a very poor source of vitamin D, usually containing less than 50 IU per quart. This is why the AAP recommends all breastfed infants receive 400 IU per day vitamin D by supplement drops.

Can I take 50000 IU of vitamin D while breastfeeding? Breast milk can be enriched with vitamin D through daily or intermittent high-dose maternal supplementation to meet infants vitamin D requirements. Alternatively, oral vitamin D, 50,000 IU every 2 months, can be given to healthy infants with routine vaccinations to prevent vitamin D deficiency.

Can I take extra vitamin D while breastfeeding? In addition breastfeeding mothers should take a daily Vitamin D supplement of 10 µg per day in fact as more and more conditions are linked with lack of vitamin D most of us would benefit from taking it regularly.

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Vitamin D Deficiency Rates Vary By Population

Its difficult to pin down rates of vitamin D deficiency. One 2004 study of just over 300 children found nearly a quarter of them were deficient based on a threshold of levels below 15 ng/mL, and another 42% had insufficient levels, defined as 20 ng/mL or lower, but all were asymptomatic. Another 2008 study using different cut-offs found that 12% of healthy 8- to 24-month-olds were deficient, defined as levels below 20 ng/mL. Forty percent of the children had suboptimal levels below 30 ng/mL. Overall, a third of the children showed demineralization on their x-rays. While the season of the year and race/ethnicity did not emerge as predictors of vitamin D insufficiency, breastfeeding without supplementation and lack of milk consumption did.

Because the vitamin D content in human breast milk is low, breastfed infants typically develop low vitamin D levels unless they receive supplementation or plenty of exposure to sunlight. A maternal dose of 6,400 IU of vitamin D is needed for breastfed infants to reach normal vitamin D levels, Dr. Gordon said. Babies born to mothers with vitamin D deficiency have the highest risk of becoming deficient themselves, although formula-fed babies usually receive plenty through the vitamin D fortification in infant formula.

How Much Vitamin D3 Should I Take Daily

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How much vitamin D3 should I take daily? Thats the short answer it depends on age. But we have discussed below the article more details about the topic. Vitamin D is very important for good health. Also known as a sun vitamin, it is made on your skin when exposed to sunlight. Despite this, vitamin D deficiency is one of the most common nutritional deficiencies in the world. Up to 42% of adults in the US have low levels of vitamin D, which can cause health problems. Vitamin D is very important for bone health and immune function. This article discusses the amount of vitamin D you need in your life.

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How Often Is Vitamin D Deficiency

Vitamin D deficiency is a worldwide problem. However, it is more common in young women, infants, the elderly, and people with dark skin. About 42% of the U.S. population has vitamin D. However, this level rises to 82% for black people and 70% for Hispanics.

If you have access to the strong sun all year round, then occasional sunlight is not enough to meet your vitamin D. However, if you live too far north or south of the equator your vitamin D levels may change over time. Rates may fall during the winter months, due to a lack of adequate sunlight.

In that case, you need to rely on your diet for vitamin D, as well as for vitamin D which is stored in body fat in the summer.

In adults, vitamin D deficiency can:

  • Create muscle weakness.
  • Intensify bone loss.
  • Increase the risk of cracking.

In children, severe vitamin D deficiency can lead to delays in growth and marketing, a disease in which the bones become weak.

Also, vitamin D deficiency has been linked to several cancers, type 1 diabetes, multiple sclerosis, high blood pressure, and thyroid problems.

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What If I Accidentally Gave More Vitamin D To My Baby

Adverse effects are highly unlikely on ingesting some extra drops of vitamin D supplement. However, toxicity does exist and can cause problems like an excess accumulation of calcium in the body .

It is still improbable for your baby to have more than 1000IU of vitamin D per day for several days to develop toxicity . An accidental drop or two from the vitamin D supplement is also not likely to do any harm unless you do it every day for several days.

Vitamin D from food and sunlight will not cause such toxicity.

Therefore, you can prevent vitamin D toxicity by checking the quantity of vitamin D in the supplement and giving the exact number of drops as prescribed by the doctor.

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How Much Vitamin D Should I Take

By Jillian Levy, CHHC

A high percentage of adults, somewhere between 50 percent and upward of 90 percent depending on ethnicity and location, are believed to be at least somewhat deficient in vitamin D. It makes sense then that vitamin D is now one of the most widely consumed supplements, though you may wonder how much vitamin D should I take. Its a tricky question, but its important to get enough of this essential vitamin.

Deficiency in vitamin D is a real problem considering that this nutrient has been shown to promote health by helping with absorption of minerals like calcium, aiding in bone health, boosting immune function, supporting growth and development, and much more. If you spend little time outdoors in the sun, have dark skin, are over the age of 70 or live in northern regions of the world where theres less sunshine year-round, then youre more likely to experience vitamin D deficiency symptoms.

When it comes to reaping the many benefits of vitamin D, you may be wondering how much vitamin D should I take? The optimal amount of vitamin D to take in supplement form depends on a number of factors for example, if youre already deficient in vitamin D, your diet, age, health status, where you live and so on. As you can see, answering the question of how much vitamin D I should take isnt necessarily cut and dry.

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