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Can Vitamin B12 Cause Hair Loss? Symptoms, Treatments & More (2024)

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Are you concerned about the amount of hair thinning or falling out? You’re not alone; approximately 30% of pre-menopausal women experience chronic hair loss.

The good news is, there are strategies to address this problem and vitamin B12 could be one factor that needs addressing. As a water-soluble essential vitamin, it helps keep your nerve and blood cells healthy so they can produce DNA for all your body’s cells.

A deficiency in Vitamin B12 may lead to a range of symptoms including premature gray hairs as well as thinning/hair loss – but don’t worry, with proper care these issues can be reversed!

Keep reading to learn more about how Vitamin B12 affects hair growth and how you can naturally boost its intake in order to prevent further damage.

Key Takeaways

can b12 vitamins cause hair loss

  • B12 deficiency can lead to hair loss and premature gray hairs.
  • Adequate iron levels and supplements like biotin and L-lysine promote stronger hair.
  • Vitamin D stimulates new cell production on the scalp for thicker strands.
  • B12 injections provide temporary relief for extreme hair loss cases.

What Causes Hair Loss?

What Causes Hair Loss?
You may be at risk of experiencing unusual or severe hair loss, so it’s important to keep an eye out for the signs and symptoms of vitamin B12 deficiency and get tested if needed. Hair loss can be caused by a variety of factors such as genetics, medical conditions, hormonal changes, or stress.

Vitamin B12 is essential for maintaining healthy hair growth as well as preventing greying because it helps produce red blood cells that carry oxygen to the scalp. Low levels can result in inefficient follicle growth, which leads to thinning or shedding.

It’s also important to maintain adequate iron levels along with taking supplements like biotin and l-lysine that help promote stronger locks. It’s important to keep your vitamin D intake in check too since this nutrient plays a role in stimulating new cell production on the scalp, which encourages thicker strands over time.

Additionally, regular scalp massages have been known to increase circulation, allowing more nutrients access into your tresses, leading to healthier manes overall. But if you think you have an extreme case, then B12 injections could offer some relief, albeit temporarily.

Which Vitamins Contribute to Hair Loss?

Which Vitamins Contribute to Hair Loss?
Vitamin B12, along with iron and vitamin D, plays a crucial role in aiding healthy hair growth and preventing premature greying. A deficiency of any one can lead to thinning or shedding of tresses. Fortunately, all three are fairly easy to obtain through dietary sources such as eggs, beef liver, or clams.

For those who don’t eat animal proteins like vegans and vegetarians, they may need fortified foods or supplements for these nutrients instead since B12 is not produced by the body itself.

It’s important to note that excessive dosages have been linked with an increased risk of early death, so it’s best not to take more than what your doctor recommends based on age and pregnancy status if applicable.

Higher levels in pregnant women have been associated with Autism Spectrum Disorder in children too! Hair loss caused by a lack of vitamins can be reversed when their intake is increased, but you should always consult your physician first before taking anything new just in case there might be other underlying causes behind why you could be losing locks at an alarming rate.

How Does Vitamin B12 Affect Hair Growth?

How Does Vitamin B12 Affect Hair Growth?
As we’ve discussed, vitamin B12 plays a major role in hair health. A deficiency of this essential nutrient can lead to excessive hair loss, premature greying, and even anemia symptoms. Thankfully, it’s fairly easy to obtain through dietary sources such as eggs or beef liver for those who eat animal proteins like fish or poultry.

Those on vegan and vegetarian diets may need fortified foods or supplements instead since B12 can’t be produced by the body itself.

Supplementing your diet with Vitamin B12, along with biotin, iron, and L-Lysine, can reduce shedding.

It’s important to note that too much of any one vitamin could cause more harm than good, so always follow the recommended daily dosage based on age/pregnancy status from your doctor before taking anything new.

When it comes to restoring damaged locks due to inadequate nutrition, however, increasing intake of Vitamin B12 alongside other vitamins mentioned above should help reverse any effects caused by deficiencies if identified early enough:

  • Make sure you get regular checkups done for signs & symptoms of deficiency
  • Eat plenty of dairy products (for non-vegans) rich in Vitamin B12
  • Increase consumption of green leafy vegetables high in Iron & Folic Acid
  • Consider using topical treatments containing Vitamins D3 & E

Symptoms of Vitamin B12 Deficiency

Symptoms of Vitamin B12 Deficiency
Being deficient in Vitamin B12 can lead to a host of unpleasant symptoms, such as fatigue, weakness, and even hair thinning or loss. Signs of vitamin B12 deficiency include anemia due to inadequate production of red blood cells, which carry oxygen throughout the body.

Other signs may include pale skin with a yellowish tinge, a sore tongue, difficulty walking or balance issues, loss of appetite and weight changes, numbness or tingling sensation in hands/feet, as well as irritability and confusion.

It is important to get your iron levels checked regularly if you suspect a vitamin B12 deficiency since low iron could also be causing similar symptoms like fatigue and a weakened immune system that would complicate diagnosis further.

Supplementing your diet with vitamins D3 & E, along with increased consumption of green leafy vegetables high in folic acid, can help improve accuracy while diagnosing B12 deficiencies quickly. This way, proper treatment strategies involving Cyanocobalamin – the manufactured version of vitamin B-12, injections, etc.

Treating Vitamin B12 Deficiency

Treating Vitamin B12 Deficiency
Treating a Vitamin B12 deficiency can be like piecing together the puzzle of your health, as it requires supplementing with the right nutrients and possibly injections to achieve optimal hair growth. Early diagnosis is key for effective treatment, so keep an eye out for signs and symptoms such as fatigue, weakness, numbness, or tingling in hands and feet, and changes in walking.

Natural sources such as eggs, beef liver, or clams may provide some vitamin B12; however, vegetarians may need fortified foods or supplements due to limited dietary options.

  1. Diagnosing Deficiency: A test can quickly identify any underlying issues causing low levels of vitamin B12.
  2. Early Treatment: Get started on increasing intake of natural food sources rich in vitamins D3 and E, combined with green leafy vegetables high in folic acid.
  3. Dietary Sources: Supplementation with cyanocobalamin (manufactured version), scalp massages, plus iron and L-Lysine will help reduce shedding while also reducing risk factors associated with early death from higher blood levels.

With proper attention given to managing a vitamin B12 deficiency, you should see improvement shortly!

Natural Sources and Supplements for Vitamin B12

Natural Sources and Supplements for Vitamin B12
Getting the right amount of vitamin B12 is essential for a healthy head of hair. It’s found in natural sources like eggs, beef liver, or clams and can also be supplemented through fortified foods or B12-rich diet plans.

To treat any underlying issues causing low levels of this important nutrient, early diagnosis and treatment are key to restoring healthful locks. Supplement with cyanocobalamin (the manufactured form) as well as scalp massages using iron and L-Lysine to reduce shedding risk factors associated with higher blood levels.

For more severe deficiency cases, injections may be necessary for optimal growth results but should only be administered under medical supervision.

Reversing Hair Loss Caused by B12 Deficiency

Reversing Hair Loss Caused by B12 Deficiency
If you’re experiencing hair loss, it’s important to identify the root cause. One possible culprit could be a vitamin B12 deficiency. Early identification and treatment are key in reversing any issues related to this vitamin, so keep an eye out for signs of deficiency such as weakness or fatigue, tingling hands or feet, swollen mouth/tongue, weight loss, or changes in walking.

To prevent deficiencies and manage symptoms associated with low levels of B12, supplement your diet with natural sources like fish liver oil. Add fortified foods into your meals. Consider taking supplements if needed. See a doctor for more severe cases that require injections.

Not only can Vitamin B12 improve overall health when taken correctly, but it also offers many benefits specific to hair growth, including increased oxygen flow through the production of red blood cells, as well as improved follicle development due to its role in DNA synthesis.

Furthermore, supplementing the diet with biotin, iron, L-Lysine, along with regular scalp massages, may help reduce shedding significantly. To ensure optimal results from prevention and treatment strategies regarding Vitamin B12-related issues, always consult a doctor since each person requires individualized plans depending on age, pregnancy status, etc.

Frequently Asked Questions (FAQs)

How much vitamin B12 should I take daily?

The recommended daily amount of vitamin B12 for adults is 4 micrograms. It can be obtained from dairy, fish, meat, and poultry or fortified foods and supplements if you’re vegan or vegetarian.

What are the long-term effects of vitamin B12 deficiency?

Long-term vitamin B12 deficiency can cause anemia, nerve damage, and other medical issues. It may also affect hair health: low levels of the vitamin can lead to thinning or loss of hair, as well as premature graying.

Early diagnosis is key for successful treatment, which could include supplements or injections if necessary.

Are there any side effects of taking B12 supplements?

Taking B12 supplements can have side effects, such as headaches, nausea, or vomiting. It may also cause an allergic reaction in some people. If taken in high doses, it can interfere with other medications and even increase your risk of stroke or heart attack.

Consult a doctor before taking any supplement to ensure safe use and avoid potential risks associated with over-supplementation.

Yes, there is a link between vitamin B12 and cancer risk. Studies suggest that higher blood levels of vitamin B12 may increase the risk of certain types of cancer. For pregnant women, high levels may also be associated with an increased chance of Autism Spectrum Disorder in children.

It’s important to monitor your intake to maintain optimal health and reduce these risks.

What is the best way to prevent hair loss caused by vitamin B12 deficiency?

The most effective way to prevent hair loss caused by vitamin B12 deficiency is to monitor your intake of the vitamin, consume foods that are rich in B12, and consider taking supplements if necessary. It is important to regularly undergo testing to detect any signs of a deficiency and consult with your doctor regarding potential treatment options.

Early identification and intervention can significantly reduce hair loss resulting from a lack of this essential nutrient.


Vitamin B12 deficiency can cause hair loss, but this can be reversed with the right treatment. With early diagnosis and increased intake of B12, hair growth can be restored, just like a flower in springtime.

Make sure to monitor your B12 levels and keep an eye out for any signs and symptoms of deficiency. Natural sources and supplements can help you maintain healthy levels. So, don’t let hair loss get the best of you.

Avatar for Mutasim Sweileh

Mutasim Sweileh

Mutasim is a published author and software engineer and beard care expert from the US. To date, he has helped thousands of men make their beards look better and get fatter. His work has been mentioned in countless notable publications on men's care and style and has been cited in Seeker, Wikihow, GQ, TED, and Buzzfeed.