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.
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.
Moreover, women have been found to have younger-onset bone loss and lose bone faster than men. This disparity is well established and well documented. Vitamin D is known to play a critical role in bone health, and research shows it can influence osteoporosis risk for women at every stage of life.
Well, as it turns out, studies have found that an adequate level of vitamin D is actually pretty important for regulating this crucial sex hormone. This is because vitamin D deficiencies have been linked to lower levels of testosterone in men.
In particular, women with regular cycles had significantly higher vitamin D levels, and lower vitamin D was associated with 13 times the odds of having an irregular cycle. In this study, vitamin D deficiency was associated with a prolonged follicular phase, delayed ovulation, and longer than normal menstrual cycles.
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.
A study found that higher serum vitamin D levels were associated with a reduced risk of weight gain in normal weight adults [10]. Another study reported that subjects who gained ≥5% weight had lower vitamin D levels than subjects who lost >5% weight [11].
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.
For less frequent dosage, a higher amount is recommended. Overall, though, studies show that the best results come from taking vitamin D as part of a daily regimen, with dosage at the recommended level.
Because vitamin D toxicity can cause side effects like rapid heartbeat, confusion, restlessness and chest pains, it can potentially cause feelings associated with anxiety.
Vitamin D undergoes two hydroxylations in the body for activation. Calcitriol (1,25-dihydroxyvitamin D3), the active form of vitamin D, has a half-life of about 15 h, while calcidiol (25-hydroxyvitamin D3) has a half-life of about 15 days.
If you are taking a supplement for a true deficiency, such as a low iron, B12, folic acid or vitamin D, then you should consult your doctor before making any changes. But Dr Fenton added: “If however, you have been taking general vitamin supplements, it is absolutely fine to just stop.
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.
Hence, in the 2011 study, the researchers looked at supplementing vitamin D with calcium to overweight and obese adults. At the end of the research, the researchers concluded that the participants who took supplements lost significantly more stomach fat than people who did not [3].
One important function of vitamin D is to help regulate cell cycles, which is particularly important when it comes to hair growth. In patients with alopecia areata, for example, research seems to show that hair follicle cycling is disrupted due to low levels of vitamin D (Hosking, 2018; Lin, 2019).
Besides boosting mood and promoting calcium absorption, recent studies have shown that vitamin D may also aid in weight loss. For people with extra belly fat, a vitamin D supplement may be beneficial.
Oranges are one of the fruits rich in Vitamin D as its juice is fortified with calcium & vitamin D. This is one of the best sources of vitamin D for people who are lactose intolerant and cannot include milk & dairy products in their diet.
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.
Vitamin D deficiency is very common in women of reproductive age which may affect menstrual cycle length due to a pronged follicular phase causing delayed ovulation.
A combination of Magnesium, Iron, Zinc, Protein, Vitamin C and D supplements are usually advised to prevent cramps and maintain energy levels.” She explained, “Magnesium is an essential mineral for women on their periods because it is a nerve and muscle relaxant, which helps prevent migraines and cramps.