Can vitamin B12 deficiency cause fragile hair or hair loss?

High levels of vitamin B12 are necessary for strong & thick hair. On the contrary, vitamin B12 deficiency may cause premature graying of hair and even hair loss!

How much vitamin B12 do I need?

The recommended daily dosage for vitamin B12 is 2.4 mcg.

But, vitamin B12 deficiency is pretty common among older or overweight people, and people who follow plant-based diets. Plants don’t contain vitamin B12. Only fortified foods and foods from animal sources, such as chicken, fish, milk, dairy, and eggs are rich in vitamin B12.

Therefore, many people would benefit from taking vitamin B12 supplements. A weekly vitamin B12 dosage of 1,000 mcg is enough in most cases. Take vitamin B12 supplements at breakfast or first thing in the morning.

Vitamin B12 is required for red blood cell formation, neurological function, DNA and protein synthesis, increased energy levels, increased fertility, and many more.[1]

Vitamin B12 protects hair follicles

Hair is made of keratin. But, hair starts growing at hair follicles. Hair follicles need lots of nutrients to function properly. Blood vessels supply nutrients and oxygen to hair follicles.[2]

Specifically, red blood cells transfer oxygen to hair follicles, keeping them healthy. Vitamin B12 is necessary for the synthesis of red blood cells and healthy blood cells.

But, low levels of vitamin B12 may cause fragile hair or even hair loss, as blood cells can’t supply enough nutrients to hair follicles. So, they can’t grow hair effectively, or they grow fragile and weak hair, leading eventually to hair loss.

Besides, poor blood circulation, hair follicles can’t function properly when we fail to consume enough vitamins, minerals, and other necessary compounds. Severe lack of nutrients may cause hair follicles to die!

We need many nutrients for strong and thick hair. For instance, we need to take adequate amounts of vitamins A, C, D & E! You can see the whole list of necessary nutrients for healthy hair here.

Vitamin B12 deficiency can make your hair gray

Vitamin B12 deficiency can cause premature graying of hair. Besides vitamin B12, iron, biotin, and folic acid deficiency can also cause premature graying of hair.[3] Certainly, genetics play a key role, but poor diet can make your hair gray, as well.

Can vitamin B12 supplements prevent hair loss?

If you have low levels of vitamin B12, supplements may help keep your hair strong, and even prevent premature hair loss. But, if you have high levels of vitamin B12, supplements won’t help you further.

The recommended daily intake of vitamin B12 is 2.4 mcg. But, many people fail to take enough vitamin B12 from food. For instance, overweight and elderly people may need a higher daily dosage. They can’t absorb vitamin B12, as effectively.

Moreover, vegans and people who follow a plant-based diet could benefit from taking a vitamin B12 supplement the most. There are only a few plant-based foods that contain vitamin B12.

A weekly dose of 1,000 mcg from supplements is more than enough. Vitamin B12 supplements are pretty safe, they’re really cheap and last for months! Here, you can find the best-selling vitamin B12 supplements on Amazon.

Always consult your health care provider before taking any supplement.