Which Vitamin Deficiency Causes Hair Loss?

Updated on 5 May 2023

Nutritional deficiency can lead to hair problems. Not getting enough of the right nutrients can lead to hair loss and other health problems.

There are many possible causes of hair loss and some of the deficiencies that can cause drastic hair loss are vitamin D, biotin, and iron deficiency. Some important vitamins are A and E, and vitamin deficiency causes hair loss. These vitamins are important for keeping the scalp healthy and promoting new hair growth. 

Vital Nutrients

Iron helps transport oxygen to the cells, which is necessary for cell growth and repair. Iron deficiency can cause anemia, which leads to fatigue and weak, thinning hair. Biotin is a water-soluble vitamin that helps metabolize fat and protein, and its deficiency can cause dry skin, brittle nails, and hair loss. Vitamin deficiency needs to be addressed to cure these problems.

What is Vitamin D?

Vitamin D is a fat-soluble vitamin that is naturally present in very few foods like fatty fish and eggs, added to others like fortified milk and available as a dietary supplement for those who do not get enough Vitamin D. It keeps our bones and muscles healthy. Indirectly Vitamin D helps to regulate the production of new hair cells. It can also be made in the body when ultraviolet rays from the sunlight hit the skin and trigger vitamin D synthesis. It promotes calcium absorption in the gut and immune system function. 

Vitamin D is essential for the body to absorb calcium and phosphorus from the diet and maintain healthy bones. 

What does Vitamin D do in our Body?

Vitamin D is metabolized in the epidermis by keratinocytes, which are skin cells that are responsible for the production of keratin, a protein found in hair, nails, and skin. When the body lacks vitamin D, keratinocytes are less effective in producing hair in hair follicles and in removing dead skin cells.

Keratin makes up the structure of hair, skin, and nails. Keratin is a protein that is found in the skin, nails, and hair. It gives these tissues strength and elasticity. The body produces keratin naturally, but it can also be found in certain foods and supplements.

Keratin is essential for healthy skin, nails, and hair. It helps these tissues to stay strong and flexible. The body produces keratin on its own, but it can also be found in some foods and supplements. Keratin is an important protein for overall health and beauty. Vitamin D has also been shown to help with skin cell turnover, which can help reduce the appearance of wrinkles. By taking supplements or eating foods rich in these nutrients, you can help keep your skin looking young and healthy.

Vitamin D Deficiency Symptoms

A lack of vitamin D can lead to conditions such as rickets (softening and weakening of bones) in children and osteomalacia (bone pain and weakness) in adults. Vitamin D deficiency has also been linked to brittle nails, and dry skin.
Since calcium is important for healthy hair follicles and Vitamin D helps with calcium absorption, Vitamin D hair loss looks like slow or stunted hair growth and weak and brittle hair follicles. It also causes weak bones.

Symptoms of vitamin D deficiency also include fatigue, muscle weakness, and bone pain. If you’re concerned about hair loss and have any of these symptoms, talk to your doctor. They can help you determine if a deficiency is a cause, and if so, how to treat it.

Diagnosing Deficiency

Vitamin D deficiency is diagnosed when the level of vitamin D in the blood is below 30 ng/mL. The most common way to test for vitamin D levels is through a blood test. 

The level of 25-hydroxyvitamin D in the blood is measured through a simple blood test. Another way to diagnose vitamin D deficiency is to look at the levels of calcium and phosphorus in the blood. If these levels are low, it may be a sign of vitamin D deficiency. 

Vitamin D levels can also be checked through a urine test, but this is less common.

Treating Deficiency

Vitamin D deficiency is treated by replenishing the body's stores of vitamin D. This can be done through dietary supplementation, exposure to sunlight, or artificial ultraviolet light. In severe cases, vitamin D injections may be necessary.

The recommended dose of vitamin D supplement depends on the person's age, weight, and health. Vitamin D supplements are available in the form of pills, capsules, liquids, and injections. It is recommended to take a daily supplement that contains 400 to 800 international units (IU) of vitamin D3. People with severe deficiencies may need higher doses like 4000 IU weekly. 

How Long till Deficiency is Gone?

The time taken to treat vitamin D deficiency can vary depending on the individual's age, weight, and overall health. Additionally, the severity of the deficiency will also affect how long it takes to treat. Some people may need more or less dose depending on their situation.





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