How to tell if you're taking too much vitamin D?
Asked by: Prof. Moses Bradtke | Last update: December 29, 2025Score: 5/5 (12 votes)
How much vitamin D is too much per day?
Do not take more than 100 micrograms (4,000 IU) 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 (2,000 IU) a day.
Is 5000 IU of vitamin d3 too much?
Unless your doctor recommends it, avoid taking more than 4,000 IU per day, which is considered the safe upper limit.
How do you flush out excess vitamin D?
Drinking plenty of water helps to support kidney function, allowing your body to naturally flush out excess vitamin D.
How to check your vitamin D levels at home?
At-home vitamin D tests enable you to collect a blood sample at home for testing and then mail it to a laboratory for analysis. Test results provide information about whether your vitamin D levels are too low, too high, or in the ideal range determined by the laboratory that analyzes your sample.
#1 Sign That You Overdosed on Vitamin D
How do you feel when your vitamin D is high?
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.
Is there a vitamin D test over the counter?
Several at-home vitamin D tests are available online that offer you a convenient and comfortable way to check your vitamin D levels. They can cost between $50 and $90.
What are symptoms of vitamin D toxicity?
- Decrease in appetite.
- Nausea and vomiting.
- Constipation.
- Dehydration.
- Increased thirst (polydipsia).
- Frequent urination.
- Confusion, lethargy and fatigue.
- Muscle weakness and difficulty walking.
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.
What to avoid when taking D3?
- Aluminum. ...
- Anticonvulsants. ...
- Atorvastatin (Lipitor). ...
- Calcipotriene (Dovonex, Sorilux). ...
- Cholestyramine (Prevalite). ...
- Cytochrome P-450 3A4 (CYP3A4) substrates. ...
- Digoxin (Lanoxin). ...
- Diltiazem (Cardizem, Tiazac, others).
When to take vitamin D, morning or night?
Although taking vitamin D in the morning may be best for aligning with your body's circadian rhythm and promoting sleep, the most important thing is regularly taking the supplement. However, pick a time that works best for you and your routine. Aim to take the supplement at the same time daily.
What are the symptoms of severe vitamin D deficiency?
When vitamin D levels are low and the body isn't able to properly absorb calcium and phosphorus, there is an increased risk of bone pain, bone fractures, muscle pain, and muscle weakness.
Can too much vitamin D cause hair loss?
Vitamin D toxicity, although rare, can occur from high intake of supplements over an extended period. This toxicity can result in a range of health issues, including hair loss, as the body struggles to regulate the nutrient's effects on various bodily systems.
What happens if I take 5000 IU of vitamin D3 every day?
Is It Safe To Take 5000 IU of Vitamin D3 Every Day? It is not safe to take 5000 IU of vitamin D3 every day. High doses such as 5,000 IU can lead to vitamin D toxicity. The upper safety limit for daily intake is 4,000 IU of vitamin D for adults and children above 12 years of age.
Can vitamin D give you anxiety?
Smoothed curve fitting revealed a negative association between serum vitamin D levels and the risk of anxiety, and these findings persisted after accounting for confounding variables. Conclusion: Serum vitamin D levels were inversely associated with anxiety risk in US adults.
What depletes vitamin D?
What causes vitamin D deficiency? In general, the two main causes of vitamin D deficiency are: Not getting enough vitamin D in your diet and/or through sunlight. Your body isn't properly absorbing or using vitamin D.
Why would my doctor prescribe 50,000 units of vitamin D?
Vitamin D deficiency (<32 ng/mL) is a reversible cause of statin-intolerance, usually requiring vitamin D3 (50,000-100,000 IU/week) to normalize serum D, allowing reinstitution of statins.
What happens if you take vitamin D3 without K2?
Can you take vitamin D3 without K2? Yes. The only real consideration to keep in mind is taking vitamin D3 without taking any vitamin K, because if you have a high level of vitamin D3 without enough vitamin K, the calcium might not transfer to the bones properly and instead end up in the vascular tissue.
How do I know if I have too much vitamin D in my body?
Can vitamin D be harmful? Yes, getting too much vitamin D can be harmful. Very high levels of vitamin D in your blood (greater than 375 nmol/L or 150 ng/mL) can cause nausea, vomiting, muscle weakness, confusion, pain, loss of appetite, dehydration, excessive urination and thirst, and kidney stones.
What is the difference between vitamin D and D3?
There are quite a few differences between vitamin D and vitamin D3, but the main difference between them is that vitamin D is a fat-soluble vitamin that regulates calcium and phosphorous levels in the body, whereas the vitamin D3 is the natural form of vitamin D produced by the body from sunlight.
What does a vitamin D rash look like?
The itchy, pinkish red bumps or welts that seem to appear out of nowhere and are known as hives (or known medically as urticaria), may be related to a vitamin D deficiency—and researchers have discovered that vitamin D has potential as an add-on therapy to allergy medications as a means to relieve some of symptoms of ...
Can you check your vitamin D level at home?
Vitamin D Test | At-Home Lab Test | Everlywell. Our at-home lab test can help you determine whether you're maintaining an adequate level of vitamin D, a vitamin essential for bone, cellular, and immune health.
What are the symptoms of low vitamin D?
- Fatigue or tiredness.
- Bone pain.
- Joint pain.
- Muscle pain.
- Sour mood.
- Low energy.
- More frequent illness.
- Anxiety.