Does Vitamin B12 deficiency cause hair loss ???

Vitamin B12 is also called ‘the energy vitamin’ – because it helps your body to create energy from what you eat.

B12 also plays an important role in our hair growth and hair colour,Vitamin B12, also known by scientific name cobalamin, is one of the eight B vitamins.

Interestingly, vitamin B12 has the lowest daily requirement of all the B vitamins. To grow new hair, the hair cells must constantly divide. And as we saw above B12 is required for making of every cell as well as its longevity. So a lack of B12 will cause hair growth to slow down a lot or in few cases even stop completely.

How B12 deficiency turns hair Grey

Low levels of B12 can cause the homocysteine levels to rise.

Elevated homocysteine is not good for our body as well as our hair.

This is because a high level of homocysteine is known to generate hydrogen peroxide – which literally bleaches and the hair from the inside out, turning your hair grey. (Raised homocysteine is also a risk factor for heart disease, Alzheimer, and stroke).

It seems that taking B12 vitamin can lower homocysteine levels, and thus cause grey hair to darken and lost hair to regrow.