We need at least 2.4 mcg of vitamin B12 per day for strong and thick hair. Vitamin B12 deficiency may cause hair loss or gray hair!
Vitamin B12 protects hair follicles
Hair grows at hair follicles. Hair follicles need lots of nutrients to function properly. Blood vessels supply nutrients and oxygen to hair follicles. Red blood cells, in particular, transfer oxygen to hair follicles, keeping them healthy. Vitamin B12 is necessary for the synthesis of red blood cells and healthy blood cells.[1]
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. Acute lack of nutrients may cause hair follicles to die!
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.[2]
Can vitamin B12 supplements prevent hair loss?
The recommended daily dosage of vitamin B12 is 2.4 mcg. But, vitamin B12 deficiency is common in seniors, 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.
If you have low levels of vitamin B12, supplements may help keep your hair strong, and 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.
You can find a wide variety of vitamin B12 supplements on iHerb.
Always consult your healthcare provider before taking any supplement or changing your diet.
