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Can too much vitamin D cause tremors?

Author

Emma Payne

Published Jan 08, 2026

Reversible Parkinsonism is also seen in vitamin D intoxication. Some increase in tremor was evident in the patient during the overdose but the tremor gradually became less intense with increased time without the vitamin supplement. The most serious symptoms occurred about two weeks after cessation of the overdose.

Can vitamin D cause tremors?

Researchers have looked into how vitamin D can affect the nervous system. Some studies have shown that low levels of Vitamin D have also been linked to the tremors found in Parkinson's and other motor-related conditions. Low levels of vitamin D could aggravate tremors.

What side effects do you get from too much 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.

Which vitamins cause tremors?

Most ET seems to have a genetic component traceable to parents, grandparents, etc. However, tremors and other movement disorders are associated with vitamin deficiency, most vitamins B1, B6 and especially B12.

Can too much vitamins cause shakiness?

Overdose symptoms for vitamin C and zinc

High doses can also result in falsely elevated blood glucose readings, which can be problematic for diabetics. Low blood glucose can cause them to feel shaky, sweaty and can even lead to seizure or a loss of consciousness.

20 related questions found

Can vitamin D deficiency cause tremors in adults?

Yes, low levels of vitamin D can cause certain neurological symptoms such as tremors and depression.

What is trembling a symptom of?

Tremor can occur on its own or be a symptom associated with a number of neurological disorders, including: multiple sclerosis. stroke. traumatic brain injury.

Why do I get full body shakes?

Sometimes, body tremors are due to an underlying neurological condition, such as stroke, Parkinson's Disease, or multiple sclerosis. However, they may also be a side effect of medications, anxiety, fatigue, or stimulant use. A doctor will work to determine the cause and provide appropriate treatments.

How do you stop tremors?

To reduce or relieve tremors:

  1. Avoid caffeine. Caffeine and other stimulants can increase tremors.
  2. Use alcohol sparingly, if at all. Some people notice that their tremors improve slightly after they drink alcohol, but drinking isn't a good solution. ...
  3. Learn to relax. ...
  4. Make lifestyle changes.

What triggers essential tremor?

The cause of essential tremor is unknown. However, one theory suggests that your cerebellum and other parts of your brain are not communicating correctly. The cerebellum controls muscle coordination. In most people, the condition seems to be passed down from a parent to a child.

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.

Can I take 5000 IU of vitamin D3 everyday?

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

Are there any side effects to taking vitamin D3?

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.

Will tremors go away?

Most tremors can't be easily treated, but they'll often go away on their own. It's important to note that muscle spasms, muscle twitches, and tremors are not the same thing.

What is the best medication for tremors?

Drugs most commonly used to treat the condition include beta-blockers such as propranolol (Hemangeol, Inderal LA, Inderal XL, InnoPran XL) and an epilepsy drug called primidone (Mysoline). Gabapentin (Neurontin) and Topiramate (Topamax), other drugs used to treat epilepsy and migraine, helps some people.

What foods help tremors?

The Mediterranean diet may lower risk of essential tremor.

  • Vegetable, legumes, fruits.
  • Cereals (preferably whole grain)
  • Fish.
  • Monounsaturated fatty acids.
  • Low levels of dairy, meat and poultry.
  • Low to moderate alcohol consumption.

Why do I get random shivers out of nowhere?

Shivering causes your muscles to contract and relax, which warms up your body. Sometimes you might get cold chills from being exposed to low temperatures. Shivering can also be a sign that your body is fighting off an illness, infection or another health problem.

What is the most common cause of tremors?

The most common cause of resting tremor is idiopathic Parkinson's disease (PD). The most common cause of postural and kinetic tremor is essential tremor (ET). Physiological tremor is an action tremor and is present in every healthy person under certain conditions.

How can I reduce my essential tremor?

Essential tremor treatments include medications and surgery. Medications. Propranolol (Inderal) and primidone (Mysoline) are most effective in reducing tremors. Propranolol is a beta blocker, also used to treat high blood pressure and performance anxiety.

Is 5000 IU of D3 too much?

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.

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.

Is it better to take vitamin D every day or once a week?

Conclusion. Daily vitamin D was more effective than weekly, and monthly administration was the least effective.

Can I take 20000 IU of vitamin D daily?

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.

What is the difference between vitamin D and vitamin D3?

There are two possible forms of vitamin D in the human body: vitamin D2 and vitamin D3. Both D2 and D3 are simply called “vitamin D,” so there's no meaningful difference between vitamin D3 and just vitamin D.

How much vitamin D3 should I take per day?

This is according to most medical expert societies, but the amount recommended by the FDA is 20 mcg per day, or 800 IU (1 mcg vitamin D is equal to 40 IU). The best way to get your daily vitamin D is through exposure to sunlight.