Is 20000 IU too much?

In terms of upper limits, there has never been a case of toxicity at levels below 200 ng/mL. It takes about 100 IU per day for every rise in blood levels of about 1 ng/mL, so to get all the way up to 200 ng/mL it would take 20,000 IU per day at a minimum, and probably more.

Can you take 20000 IU of vitamin D daily?

The upper limit per the NIH is 4,000 IU daily for those ages 9 years and older. A study of 17,000 people taking varying doses of vitamin D, up to 20,000 IU/day, to analyze the relationship between body weight and vitamin D needs, did not demonstrate any signs of toxicity.

How often should you take 20000 IU of vitamin D?

Once your stores are adequately replenished you are likely to require vitamin D supplements lifelong to ensure your levels do not drop again. We have prescribed you a course of high dose vitamin D capsules containing 20,000 units of vitamin D which you will take 1 capsule twice a week for 8 weeks.

Can I take 2000 IU of vitamin D twice a day?

Mayo Clinic recommends that adults get at least the RDA of 600 IU. However, 1,000 to 2,000 IU per day of vitamin D from a supplement is generally safe, should help people achieve an adequate blood level of vitamin D, and may have additional health benefits.

How many IU of vitamin D is lethal?

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.

Is it Safe to Take 10,000 IUs of Vitamin D3?

Can I take 10000 IU of D3 daily?

The Endocrine Society Practice Guidelines recommend that up to 10,000 IUs daily was safe for adults. This is in contrast to the recommended UL at 4,000 IU/d from the IOM.

What happens if you take 100000 IU of vitamin D?

Although vitamin D toxicity is a very rare condition, recent increases in supplement use may lead to an increase in reported cases. A daily intake ranging from 40,000–100,000 IU (1,000–2,500 mcg), for 1 to several months, has been shown to cause toxicity in humans ( 15 , 19 , 20 , 21 , 22 ).

Can I take 15000 IU vitamin D?

With almost 4000 participants it did show that vitamin D levels up to 300 nmol/L (120 ng/ml), as well as vitamin D intakes of up to 15,000 IU/day, are safe.

Can I take 50000 IU of vitamin D daily?

In summary, long-term supplementation with vitamin D3 in doses ranging from 5000 to 50,000 IUs/day appears to be safe.

How do you know if you have too much vitamin D?

Symptoms and treatment of vitamin D toxicity

Early symptoms of hypercalcemia include nausea, vomiting, diarrhea, constipation, and weakness ( 27 ). Excessive thirst, an altered level of consciousness, high blood pressure, calcification in the kidney tubes, kidney failure, or hearing loss may also develop ( 4 , 28 ).

Is 20000 IU of vitamin D high?

In terms of upper limits, there has never been a case of toxicity at levels below 200 ng/mL. It takes about 100 IU per day for every rise in blood levels of about 1 ng/mL, so to get all the way up to 200 ng/mL it would take 20,000 IU per day at a minimum, and probably more.

Can I take 20000 IU of vitamin D weekly?

The daily dose should not exceed 4,000 IU per day or equivalent weekly [20,000 IU (1 capsule) per week] or monthly dose. STRIVIT-D3 20,000 IU capsules should not be given to children under 12 years of age due to the risk of choking. Instead, it is advisable to use drops or dissolvable tablets.

Why do doctors prescribe high doses of vitamin D?

Doctors may prescribe higher doses to treat medical conditions such as vitamin D deficiency, diabetes, and cardiovascular disease, for a short period of time. Daily use of high-dose vitamin D supplements for several months is toxic.

Is 25000 IU of vitamin D OK?

Some people may need a higher dose, however, including those with a bone health disorder and those with a condition that interferes with the absorption of vitamin D or calcium, says Dr. Manson. Unless your doctor recommends it, avoid taking more than 4,000 IU per day, which is considered the safe upper limit.

Why have I been prescribed colecalciferol 20000?

Treatment and prevention of vitamin D deficiency. As an adjunct to specific therapy for osteoporosis in patients with vitamin D deficiency. The capsules are indicated for use in adolescents, adults and the elderly.

What is the highest IU of vitamin D?

Although 4,000 IU (100 mcg) is set as the maximum amount of vitamin D you can take safely, several studies have shown that taking up to 10,000 IU (250 mcg) daily won't cause side effects ( 37 , 38 ). That said, taking more than 4,000 IU may provide no extra benefit.

Is 30000 IU of vitamin D3 too much?

Up to 4,000 IU per day is generally considered the safe upper limit, however, doses up to 10,000 IU/day have not been shown to cause toxicity. In fact, many cases of vitamin D toxicity have been a result of dosing errors leading to significantly higher amounts being ingested.

What happens if you take 5000 IU vitamin D?

Since vitamin D helps calcium absorption, the toxic effects from high doses often result from high calcium levels in your blood. That can interfere with heart and muscle function (Sadiq, 2020). Common side effects of vitamin D overdose include nausea, vomiting, muscle pain, and frequent urination (Sizar, 2020).

Can vitamin D cause clogged arteries?

The effects of vitamin D insufficiency were observed at all stages of atherosclerotic plaque formation, destabilisation and rupture [17]. Vitamin D also affects blood extravasation at ruptured atherosclerotic plaque, which is a key element of acute coronary syndrome [17].

What happens if you take 50000 IU vitamin D?

Risks include developing kidney stones, confusion, vomiting, muscle weakness and increased calcification in the body, McKennon added. She said with other types of vitamins that aren't fat-soluble, such as vitamin C, people “just urinate it out” if there's excess. “Vitamin D is not like that.

Is 50000 units of vitamin D alot?

Conclusions: Vitamin D3 therapy (50,000-100,000 IU/week) was safe and effective when given for 12 months to reverse statin intolerance in patients with vitamin D deficiency. Serum vitamin D rarely exceeded 100 ng/mL, never reached toxic levels, and there were no significant change in serum calcium or eGFR.

Is 200000 IU of vitamin D3 good?

Conclusion. This review recommends that vitamin D₃ be used for supplementation over vitamin D₂ and concludes that single vitamin D₃ doses ≥300,000 IU are most effective at improving vitamin D status and suppressing PTH concentrations for up to 3 months. Lower doses, however, may be sufficient in certain populations.

Can I take 60000 IU of vitamin D daily?

No one developed hypercalcemia or any adverse events. The major finding of this case series is prolonged daily dosing of vitamin D3 with doses of 10,000 to 60,000 IU was safely tolerated.

Can I take 50000 IU of vitamin D monthly?

The monthly dose of 50,000 IU was proven equally safe as the 2000 IU daily dose in a vitamin D-deficient population. The same dose was evaluated by Binkley et al. [26] during a period of one year. Supplementation with 50,000 IU taken monthly by adult patients did not raise any safety concern.

How soon will I feel better after taking vitamin d3?

Those with the lowest levels should feel an improvement after just a few days, while those who only need to top up their levels may have to wait a week or two before they begin to feel healthier and more energised.