Hair loss is a common problem that affects people of all ages, genders, and backgrounds. It can be caused by many different factors such as stress or genetics – but could low levels of vitamin B12 also be the culprit? In this article we’ll explore whether there’s any truth to the idea that low b12 can cause hair loss, so you can make an informed decision about how to care for your locks.

For those not familiar with Vitamin B12, it’s often referred to as cobalamin because it contains cobalt in its molecular structure. This nutrient plays an essential role in keeping our bodies healthy; from helping us form red blood cells to metabolizing food into energy. So if you’re experiencing problems with thinning hair, it may be worth considering whether a deficiency in this important vitamin could be contributing factor.

What Is Vitamin B12?

Vitamin B12, or cobalamin, is a nutrient found in animal-derived foods that plays an important role in many bodily functions. It helps with the formation of red blood cells and supports healthy nerve function. Vitamin B12 may even help boost energy levels and improve moods.

Our bodies need vitamin B12 to produce DNA, the genetic material in all our cells. Without enough of this essential nutrient, our bodies can’t make new red blood cells to replace old ones, which makes it difficult for oxygen to get where it needs to go in the body. That’s why people who don’t get enough vitamin B12 may feel tired, weak, or lightheaded.

Low levels of vitamin B12 can also lead to changes in your hair texture and color as well as thinning or loss of hair on other parts of your body. If you think you might have low vitamin B12 levels due to dietary restrictions or certain medical conditions, talk to your doctor about testing and supplements.

Symptoms Of A Vitamin B12 Deficiency

Fatigue, one of the most common symptoms of a Vitamin B12 deficiency, can range from feeling tired all the time to feeling exhausted after minimal activity. Anemia, another common symptom, is caused by a lack of red blood cells and can lead to weakness and loss of appetite. Poor memory and mood changes are also linked to a Vitamin B12 deficiency, as are numbness, tingling and heart palpitations. Finally, hair loss, digestive issues, dizziness, difficulty breathing, vision loss, and skin pale or jaundiced can also be signs of a deficiency.


Fatigue is one of the more common and noticeable symptoms associated with a vitamin B12 deficiency. It can range from feeling tired after minimal activity to having an overwhelming exhaustion that affects your daily life. Many people experience this as a constant, low-level fatigue even when they have had plenty of sleep or rest. This type of fatigue may be caused by a lack in energy production at the cellular level due to inadequate amounts of vitamin B12 being available for use by cells. Additionally, since some neurological functions are regulated by B12, it’s possible that its absence causes difficulty focusing and mental fog which contribute to feelings of tiredness. Vitamin B12 helps keep red blood cell levels healthy, so if you’re deficient enough, you could develop anemia—another cause of extreme fatigue. If left untreated, very severe deficiencies can lead to other serious problems like nerve damage or even permanent vision loss. So if you’re experiencing persistent fatigue, get it checked out – it might just be a sign of something more serious than needing more sleep!


Another symptom of a vitamin B12 deficiency is anemia. Anemia can be caused by the lack of healthy red blood cells due to inadequate amounts of vitamin B12 being available for use in their production. This can lead to extreme fatigue, as your body isn’t able to carry enough oxygen through your bloodstream to power you throughout the day. It’s also possible that this could cause difficulty focusing and mental fog which contribute further to feeling exhausted. If left untreated, it can cause permanent nerve damage or even vision loss, so if you’re experiencing persistent tiredness don’t hesitate to get checked out!

Potential Causes Of Hair Loss

Vitamin B12 is a critical nutrient for the body, and deficiencies can cause various symptoms, including hair loss. Low levels of this vitamin can lead to anemia, which reduces oxygen in the blood and causes hair follicles to become weak and unable to produce healthy strands of hair. Additionally, hormonal imbalances caused by low B12 can also affect hair growth and cause thinning or balding patches.

Hair loss due to Vitamin B12 deficiency may be accompanied by other signs such as pale skin, dizziness, tingling sensations in hands and feet, fatigue, or difficulty concentrating. If these symptoms are present alongside unexplained hair loss, it’s important to get tested for Vitamin B12 levels. A doctor will likely use a simple blood test that measures your red blood cell count (RBC) to determine if you have an adequate amount of Vitamin B12 in your system.

If there is an issue with Vitamin B12 levels in the body, treatments usually involve supplements or shots which help bring those levels back into balance and restore healthier-looking locks. Making changes to one’s diet can also be beneficial; foods high in Vitamin B12 include eggs, dairy products, fortified cereals and certain types of fish like salmon and tuna. Eating more of these nutrient-rich items could help prevent future issues related to low B12 levelse


It’s clear that a Vitamin B12 deficiency can cause hair loss. As the saying goes, “Your hair is your crowning glory,” and it should be taken care of with plenty of nutrients like Vitamin B12 in order to keep it healthy and strong. If you think you may have low levels of this important vitamin, take action right away! Speak to your doctor about testing for low B12 and start taking supplements if necessary. Don’t let a lack of nutrient deprive you of your beautiful tresses – look after yourself and make sure you get enough Vitamin B12!


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Author Bio
Samntha Lancaster

Hello there, lovely readers! I'm Samantha Lancaster – a Trichologist, a passionate author, and the guiding force behind Hairbyte.COM. Armed with expertise in Hair Science, I'm here not only to share tips but to offer you a comprehensive understanding of hair care. Join me on this journey as we explore the intricacies of hair health, blending science with art to help you achieve hair that's not just beautiful, but radiantly healthy.