According to Levitan, consuming between 800 and 2,000 IU or 20 to 50 micrograms of vitamin D a day is usually sufficient and “too much can cause toxicity.” Some people need 5000 IU a day to maintain optimal blood levels and vitamin D should be taken in the morning with magnesium for maximum bioavailability. The recommended daily amount of vitamin D for adults is 600 IU (international units) per day for men and women ages 19 to 69.Men and women age 70 and older need more vitamin D every day with 800 IU. Vitamin D provides myriad health benefits, including maintaining long, healthy hair. The Harvard School of Public Health states that the recommended daily amount of vitamin D is 600 IU a day for adults over 19 years of age.
The Endocrine Society recommends that adults over 55 years of age receive between 600 and 800 IU per day of vitamin D. Finally, they recommend 400 to 600 IU per day of vitamin D for children. Low vitamin D levels are also related to certain forms of hair loss, a topic we'll discuss in more detail below. A lack of sunlight or not eating enough vitamin D-rich foods are the most common causes of vitamin D deficiency.
However, taking vitamin D in very high doses can cause toxicity that can lead to serious complications. People concerned about hair loss can visit a dermatologist to determine the cause of any hair growth problem. This is a type of blood test to detect the presence of 25-hydroxyvitamin D, a common form of vitamin D that circulates in the blood. People concerned about hair loss related to vitamin D deficiency should see a doctor, who will likely suggest supplements, dietary changes and spending more time outdoors to help combat the deficiency.
Maintaining a balance of nutrients in the diet and filling in known nutritional deficiencies are the best ways to support hair health.
thinningand hair loss are common, and manufacturers offer many products to help combat these conditions. Along with vitamin D supplements, these alternatives are just one part of a larger list of treatments for hair loss. Vitamins and other nutrients are important for hair health, but certain home care strategies can also help.
Research shows that people with alopecia areata have much lower levels of vitamin D than people who don't have alopecia. Spending too much time in direct sunlight isn't good for your skin, but a small amount of exposure to the sun can help produce vitamin D naturally. The Endocrine Society recommends that adults between 19 and 55 years old get 600 IU of vitamin D a day. The risk of vitamin D toxicity in an average person is extremely rare because they would need to take very large amounts of vitamin D for it to become toxic.
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