Is there a downside to taking vitamin D?

Some side effects of taking too much vitamin D include weakness, dry mouth, nausea, vomiting, and others. Taking vitamin D for long periods of time in doses higher than 4000 IU (100 mcg) daily is possibly unsafe and may cause very high levels of calcium in the blood.

Can vitamin D supplements cause problems?

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

What are the negative effects of vitamin D3?

How much vitamin D should you take a day?

All things considered, a daily vitamin D intake of 1,000–4,000 IU, or 25–100 micrograms, should be enough to ensure optimal blood levels in most people. According to the National Institutes of Health, the safe upper limit is 4,000 IU.

Is it OK to take vitamin D everyday?

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.

Vitamin D Toxicity Rare in People Who Take Supplements, Mayo Clinic Researchers Report

What's the side effects of vitamin D?

Some side effects of taking too much vitamin D include weakness, dry mouth, nausea, vomiting, and others. Taking vitamin D for long periods of time in doses higher than 4000 IU (100 mcg) daily is possibly unsafe and may cause very high levels of calcium in the blood.

Can vitamin D3 cause weight gain?

Despite these findings, the current body of research suggests that consuming higher amounts of vitamin D has little effect on weight gain or loss.

Can vitamin D3 cause anxiety?

While vitamin D itself is unlikely to be causing your anxiety, that doesn't mean it can't, and the activities that you do to help increase vitamin D are valuable for your anxiety anyway. Getting outside will help you get what vitamin D you can, although there are also nutritional supplements available.

Can vitamin D3 cause kidney stones?

Increased vitamin D levels may prevent a wide range of diseases, according to recent studies.

Which two vitamins pose the greatest risk of toxicity?

Extra amounts of water-soluble vitamins are typically excreted. The fat-soluble vitamins A and D are the most likely to cause toxicity symptoms if you consume them in high amounts.

Can vitamin D make your joints hurt?

Another study predicted that adults with a vitamin D deficiency who are older than 50 are more likely to develop pain in their hip and knee joints. The study also noted that the pain is more likely to get worse if the deficiency isn't treated.

Can too much vitamin D cause inflammation?

Risks: When Too Much Vitamin D Is Too Much

Vitamin D supplements reduce blood levels of C-reactive protein, or CRP, an indicator of inflammation that is linked to cardiovascular disease.

How do you know if you have 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.

How much vitamin D is too much?

The safe upper limit of intake is set at 4,000 IU per day. Intake in the range of 40,000–100,000 IU per day (10–25 times the recommended upper limit) has been linked with toxicity in humans.

Can vitamin D deficiency cause hair thinning?

“Both vitamin D deficiency, as well as vitamin D excess, may cause hair loss,” Chacon explains. A 2020 study in the International Journal of Dermatology found that vitamin D deficiency may also play a role in the development and severity of androgenetic alopecia, also known as male pattern baldness.

Can taking vitamin D make you feel weird?

While Vitamin D supplements may be taken, be careful not to overdo it. Too much of this fat-soluble vitamin can cause nausea, vomiting, itching, weakness, confusion, heart rhythm problems and kidney damage.

Does vitamin D affect sleep?

Research links vitamin D levels to sleep quality. In fact, several studies associate low levels of vitamin D in your blood to a higher risk of sleep disturbances, poorer sleep quality and reduced sleep duration ( 9 , 10 , 11 ).

Can vitamin D make you feel worse?

And some will find that taking vitamin D supplements makes them feel worse; probably because the high PTH turns the supplements into high concentrations of 1, 25 dihydroxy vitamin D which is the active form, causing symptoms of vitamin D toxicity. When taking vitamin D makes you feel worse, you should immediately stop.

Does vitamin D affect hair?

Vitamin D is metabolized in the skin by keratinocytes. These are skin cells that process keratin, a protein in hair, nails, and skin. When the body doesn't have enough vitamin D, keratinocytes in hair follicles have trouble regulating hair growth and shedding.

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.

Does vitamin D3 help hair growth?

Vitamin D is an important nutrient that is essential to our health. It boosts immunity, keeps bones strong and skin healthy, stimulates cell growth, and helps create new hair follicles.

Is it better to take vitamin D daily or weekly?

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

Can too much vitamin D affect thyroid?

Importantly, both vitamin D and thyroid hormone bind to similar receptors called steroid hormone receptors. A different gene in the Vitamin D receptor was shown to predispose people to autoimmune thyroid disease including Graves' disease and Hashimoto's thyroiditis.

Does taking vitamin D make you tired?

Excessive amounts of vitamin D in the body can cause calcium levels in the blood to rise. This can lead to a condition called hypercalcemia (too much calcium in your blood). Symptoms include: fatigue.

Can too much vitamin D cause high cholesterol?

Higher vitamin D levels appear to be associated with higher total cholesterol levels and higher HDL cholesterol levels, according to a new study presented at the American College of Cardiology's (ACC) 65th Annual Scientific Sessions.