Vitamin D and Your Hair Growth


Vitamin D and Your Hair Growth

Recent studies by researchers at Cairo University have also found a link between vitamin D and your hair growth and hair loss. There have been numerous studies on the effects vitamin D has on our general health. Vitamin D most notably plays a role in bone health and diabetes.

What is vitamin D?

Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and multiple other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D₂. It’s a fat-soluble vitamin that is generated from exposure to UV-B light, although it can also be obtained in certain foods in your diet and through supplements if necessary.

Its main function is to help the body absorb calcium and phosphorus to keep bones strong. It also has a key function in cell modulation and the immune system. As a result, this is where the link to hair growth cycle could be. Vitamin D is required in order for hair follicles to remain healthy. A vitamin D deficiency can result in hair becoming brittle and potentially shrinking hair follicles, causing hair loss.

The link between vitamin D and hair loss

A recent study looked at hair loss in women. Studies indicated that those women experiencing hair loss had low vitamin D levels. Furthermore, increasing hair loss and disease severity caused the vitamin D levels to decrease further.

The research is still in the early stages. There are strong links with vitamin D and hair loss. Or, that there is a vitamin D deficiency present in hair loss sufferers. To date, there isn’t concrete evidence to suggest that vitamin D is the only answer for curing hair loss all together.

Vitamin D works alongside a number of different vitamins and minerals. Not only for our hair but our general well-being. These include, iron, vitamin C and biotin. They are all vital in the hair growth cycle.

How Much Vitamin D Do You Need?

The body needs different amounts of vitamin D at different stages of life. Sun exposure isn’t often enough to keep vitamin D levels at optimal levels. Especially for those living in cold or cloudy climates.

But according to the National Institutes of Health (NIH), they set out the age-based recommended daily allowance (RDA) amounts for vitamin D:

Infants 400 IU, or 10 micrograms (mcg) per day (2). Note that because breast milk contains only 25 IU per liter, your exclusively breast-fed infant will likely need a vitamin D supplement to get his or her fix. Vitamin D deficiency in infants and babies is linked with rickets, a rare but serious condition that can lead to growth delays. (19)

Children and Teenagers 600 IU, or 15 mcg, per day (2).

Adults 600 IU per day (2).

Elderly (Over Age 70) 800 IU (20 mcg) per day (2). Talk to your doctor to get a blood test to find out if you may benefit from a vitamin D supplement, because vitamin D deficiency is more prevalent in older adults than in middle-aged and young adults. (20)

Talk to your doctor to see what dosage is best for you.

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