Vitamin D can indeed cause hair loss, but it's rare. Although the precise role of vitamin D in hair growth isn't well understood, research shows that vitamin D receptors play an important role in the anagen phase of the hair follicle cycle — the phase in which new hairs grow from the follicle to their full length.
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.
Will hair grow back after vitamin D deficiency? The good news is that hair loss due to vitamin D deficiency is usually reversible. Once levels of vitamin D are increased, hair follicles will typically begin to function properly again and hair will start to regrow.
In the absence of deficiency, supplementation may actually prove harmful to hair. Over-supplementation of certain nutrients, including selenium, Vitamin A, and Vitamin E, has actually been linked to hair loss [4,8–11].
That is why we recommend supplementing with between 5,000-10,000 IU per day in order to achieve healthy vitamin D levels (40-80 ng/ml).” The key to resilient, strong hair less prone to falling out lies in the follicles.
Thinning hair that arises solely as a result of dietary issues, including vitamin D deficiency - Telogen Effluvium or Diffuse Thinning - is likely to be temporary, with hair growth returning to normal within 6 to 12 months of the underlying trigger being addressed.
Whilst it is true that both forms of vitamin D are essential for health and well-being, the new research shows that our bodies absorb and use vitamin D3 better. And as vitamin D3 is more effective at treating diseases, it seems likely that this will be the form of the vitamin most beneficial to hair health.
It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Anyone can lose hair on their head, but it's more common in men. Baldness typically refers to excessive hair loss from your scalp. Hereditary hair loss with age is the most common cause of baldness.
Sudden hair loss is typically a sign of two conditions: telogen effluvium or alopecia areata. Telogen effluvium is commonly caused by stress, which increases the natural rate of hair loss. Alopecia areata is an autoimmune condition that causes your body to attack its hair follicles, resulting in hair loss.
Experts say that over-the-counter vitamins for hair growth and thickness often contain B complex vitamins, iron, protein, and vitamin D. "We know that low levels of these vitamins are associated with hair thinning," Dr. Zeichner tells Health.
Adequate levels of vitamin D3 are essential for healthy hair growth, as it supports the growth and maintenance of hair follicles. One of the primary ways in which vitamin D3 promotes healthy hair growth is by improving the absorption of calcium.
The recommended daily amount of vitamin D is 400 international units (IU) for children up to age 12 months, 600 IU for people ages 1 to 70 years, and 800 IU for people over 70 years.
While it is possible to take enough vitamin D once a week to keep yourself balanced, the best results were found to be a lower dose (1,000-2,000 IUs or 25-50 mcg ) taken daily. Taking vitamin D consistently with a meal containing healthy fats will ensure that your body absorbs it properly.
Therefore, conditions that affect the gut and digestion, like celiac disease, chronic pancreatitis, Crohn's disease, and cystic fibrosis, can reduce vitamin D absorption.
Vitamin B-
The most famous and commonly heard B-vitamin is Biotin. The use of biotin for hair loss is very popular as it is found in almost all hair growth supplements and is a well-known anti-hair fall agent. We should consume Biotin in our everyday diet because it is a water-soluble vitamin.
“Vitamins are essential for healthy hair growth and may help in preventing hair shedding and thinning,” says Michele Green, M.D., a cosmetic dermatologist in New York. “The best vitamins for hair growth include B vitamins, vitamin D, vitamin E, zinc, biotin and iron.
While a Vitamin B12 deficiency is sometimes linked to hair loss, there have been no clinical studies that have proven this to be true. Instead, hair loss — also called alopecia — is generally caused by genetics and age. It can also be caused by medical conditions, hormonal changes, some medicines and stress.
Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss.
Yes, research and studies have shown that there is a definite link between vitamin D and hair loss. Experts have stated that keratinocytes, the skin cells that produce keratin and keep the hair healthy, metabolise vitamin D in the body.
A Fred Hutchinson Cancer Research Center study involving postmenopausal, overweight, and obese women who took 2,000 IUs of vitamin D daily for a year found that those whose vitamin D blood levels increased the most had the greatest reductions in blood estrogens, which are a known risk factor for breast cancer.
Vitamin D supplements are an excellent way to improve your Vitamin D blood levels. Unfortunately, not many foods naturally contain an adequate amount of Vitamin D. If you are consistent with taking your Vitamin D supplements, there is a likelihood that you will see hair regrowth results within six to eight weeks.