Zu viel Vitamin D3?

Too much vitamin D3?

Can the intake of too much vitamin D3 harm?

Vitamin D3 30000 undoubtedly plays an important role in the development of muscle cells, the optimal function of the innate and acquired immune system and the preservation of our skeletal muscles. However, taking too much vitamin D leads to vitamin D toxicity in the body. The doctor recommends taking vitamin D daily, but people often make mistakes and start taking additional doses. Taking vitamin D beyond the recommended dose leads to Vitamin D toxicity or hypervitaminosis. Due to vitamin D toxicity, other health problems such as heart problems, bone loss, psychological problems, kidney problems, etc. occur.

Symptoms of vitamin D toxicity

With vitamin D toxicity, people show the following symptoms:
  • fatigue
  • constipation
  • Lack of appetite
  • Dehydration
  • thirst
  • Vomit
  • nausea
  • dizziness
  • high blood pressure
  • Tinnitus
  • Muscle aches
  • Hallucinations and confusion

Increased calcium values ​​in the blood

  Vitamin D helps with the absorption of calcium from all foods that you consume. However, if you have a higher vitamin D level, e.g. B. by vitamin D3 50000 IE or vitamin D3 50000 IE daily, your calcium level in the blood can achieve toxic values ​​and have unpleasant effects. The usual area of ​​the serum calcium is 8.5-10.8 mg/dl. An investigation has shown that hypercalcemia occurs after taking excessive doses of vitamin D. Symptoms of oversupply with calcium
  • Frequent urination
  • fatigue
  • Memory problem
  • Pain in the bones
  • depression
  • weakness
If you take vitamin D3 30000 and feel these symptoms, this means that you have hypercalcemia.

Changed mental status

Vitamin D toxicity can lead to a changed state of mind in humans. They show symptoms such as confusion, psychosis and depression. In 2021 it was reported on a case, in which a 64-year-old older man accidentally took vitamin D3 500,000 IE or 20,000 IE a day because he had misunderstood the medication instructions. After a few days, he showed a changed mental 200,000 IE status. In the first ten days of his hospital stay, he was confused and restless. After 18 days, his serum calcium values ​​were normal again. A study carried out in 2020 showed that a woman who took an average of 130,000 IE vitamin D a day for 20 months also had symptoms of hypercalcemia.

Gastrointestinal symptoms

Gastrointestinal is a disease that affects the mouth and stomach. The main cause of gastrointestinal diseases is vitamin D toxicity. It is also the most widespread in America. A current report According to the National Institute of Diabetes and Digeive and Kidney Diseases, around 60 to 70 million people suffer from gastrointestinal diseases every year. It is therefore important to take a limited amount of vitamin D such as vitamin D 10000.

Kidney complications

Vitamin D toxicity can lead to kidney damage and kidney failure. As you know, a high vitamin D level leads to a high calcium level, which leads to excessive urination and calcification of the kidney. In addition, one Hypercaline To a vasoconstriction of the renal arteries and reduce their blood supply. Therefore, doctors recommend not exceeding the recommended amount of vitamin D3. Because a person can die due to kidney failure.

Irregular heartbeat and heart attack

Vitamin D toxicity can affect the heart cells and cause cardiac arrhythmia and various other heart diseases. Calcium deposits can form in the arteries or heart valves for people with high calcium levels. A study carried out in 2012 showed that a 70-year-old woman over 30 days of calcium injections of around 80,000 IE Vitamin D3 20000 IE received a hypercalcemia and a complete heart block per day, which required an immediate intervention with a pacemaker.

Bone loss

Vitamin D plays an important role in bone metabolism and calcium intake and is required to preserve bone strength. However, too much vitamin D can affect bone health. Studies have shown that high doses from vitamin D can lead to a low vitamin K2 level. Vitamin K2 is needed to keep calcium in the bones and not in the blood. And a high vitamin D level can reduce vitamin K2 activity.

How is vitamin D toxicity or hypervitaminosis D toxicity diagnosed?

In order to diagnose vitamin D toxicity, the doctors first question the patient's medical history. After knowing the symptoms, take blood samples to determine the vitamin D, calcium and phosphorus levels in the body. Some also require a urine test to determine the calcium level in the body.

How can you prevent hypervitaminosis?

If hypervitaminosis D is diagnosed with one person, doctors recommend taking vitamin D preparations immediately after the doctor has created a diet plan with a low calcium level.


Taking more than the recommended amount causes various health problems. The same applies to vitamin D if you believe that taking more vitamins is useful. But no, that's not the case. Researchers have proven that taking more vitamin D than the recommended amount can be dangerous. The toxicity of vitamin D causes various health problems such as weakness, cardiovascular problems, muscle pain, loss of appetite, hypertension, etc. Therefore it is important to the recommended amount Vitamin D 10000 to consume to prevent vitamin D toxicity.  
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