Vitamin B12 Deficiency Symptoms

Vitamin B12 deficiency symptoms will be described in the following article. The most common ones include:

● Tongue itchiness
● White spots may appear on the skin surface (this means that melatonin is disappearing)
● Palm tingling
● Short breath (but no chest pain)
● Eye twitch
● Lack of balance
● Migraines
● Nerve shock that affects one side of the body
● Disorientation
● Mood changes
● Irritability
● Sores may develop in the corners of one’s mount or on the lips
● Memory loss
● Low levels of vitamin B12 in blood can lead to psychosis and mania symptoms.

This vitamin is responsible for the synthesis of the DNA, normal red blood cells formation and several neurological processes. B12 is soluble in water, unlike vitamin D that is fat-soluble. B12 has an important role in functioning of the central nervous system and brain. This vitamin belongs to the group of B vitamins. Vitamin B12 is produced in the process of bacterial fermentation. It affects the DNA synthesis, and therefore is involved in the functioning of all cells in the body.

Anemia is one of the first symptoms of B12 deficiency. This condition can cause vomiting, nausea, diarrhea, constipation, gas and heartburn. If you experience anemia, you will be advised to change your diet. You can consume more protein-rich foods, like poultry, eggs, red meat, fish and dairy products. Yeast can also be a good source of vitamin B12. Animal-derived foods are also good sources, but these foods can’t be considered good enough to fulfill your daily needs. Some people have physiological obstacles when it comes to vitamin B12 absorption, but this can be treated with B12 injections. Injections are considered more effective, compared to tablets. Older people usually get injections, because this form of vitamin B12 is easier to absorb.

27 thoughts on “Vitamin B12 Deficiency Symptoms

  1. Joyce says:

    I have been fighting weight loss for a long time. I HAVE NO ENERGY at times, balance off,HARD heart beats, palpitations…. severe, but no pain. My hair is falling out every time I brush it. My friend told me to take vitamin B12 tablets for energy and it is working. I AM SO HAPPY. I have always been a go getter, but my go getter was about gone. Thanks to B12, I’m doing so much better and it’s only been 3 days.

  2. Pat Boyer says:

    My natural curly hair, thick and beautiful has almost all fallen out!
    Dr. started me on Vit. B-12. I’m also on Iron since knee surgery and congestive heart failure in last 5 mos. Spent 2 wk. in Hospital for each issue.
    Or could it be Amiodarone? Coumadin? or????????????????????
    I’m at my wits end.

  3. Jane says:

    I was experiencing numbness, sharp pains and pain (especially in my big toes) I was very confused at times and couldn’t remember things…but I knew I couldn’t . It was very scarey. I started on Vitamin B12 ….6 months ago. I have found that with in 4 months confusion and mental foggyness was mostly gone. If I don’t take B12 shots every 3 days …pain in toes/feet and thumbs/hands (now too) come back with a vengence. I’m 54 and have Vitamin B 12 deficency due to prenicous anemia. Also I have Sjogrens disease.

  4. Jaimie says:

    An abnormally high iron level, especially in a nonsmoker, could be a result of hemachromatosis. 1 out of 4 people of European descent are said to carry the gene. It is said to be severely underdiagnosed in this country.

  5. Carl says:

    The white spots on the skin is from a lack of pigment melanin not melatonin which is a chemical in the brain that regulates one’s circadian rythm

  6. Trina says:

    To: John OD says:
    May 10, 2011 at 4:18 pm
    Does any have muscle twitching along with the tingling in the arms or legs?

    Yes, I have a problem with really low B-12 and I have headaches and the tops of my legs hurt really bad…. That is an understatement. I was taking shots once a day for 7 days and then just once a week. I have another apt. today and I have to be honest with you. The shots now, only last for 3 if I am lucky 4 days and then the sever pain returns…. Sorry that I could not be of more help. Hope you all get better soon.

  7. Marilyn says:

    Certain medications such as colchicine (used to treat gout), phenytoin (used to treat seizures), metformin (for treatment of diabetes) may interfere with vitamin B12 absorption, as do acid-reducing drugs that are used to treat ulcers. Excessive alcohol consumption can impair vitamin B12 absorption, and individuals with AIDS also have trouble absorbing this nutrient.

  8. Tom Ricks says:

    Please look into Vitamin D deficiency as well. The symptoms seem so similar. I am hypothyroid, but also Vitamin D deficient.

  9. Bira Rabushka says:

    I am taking B12 for Vit. B12 deficiency. I also take Synthroid (50mg)for low thyroid function. I am tired all the time and and depressed and am gaining weight. Can I add iodine ? Doctor says my thyroid is now normal…


  10. Janet says:

    I am a 48yr old African american female, I have had the tingling and numbness in my feet, off balance with a few falls,I have psoriasis, but with that my skin has darker spots all over, I have been depressed alot, but I make myself get out and enjoy my kids, and my mood has changed, I am a real mellow easy going person, I 1 day was walking then, my eyes were blurry, my legs gave out, could not feel my feet, and my right arm, went to the hospital after 3 days they said I had a B-12 deficiency, got shots every day for a week, after 2 month i am going once a month, this after 2 yrs.

  11. Kathleen says:

    Does Vitamin B12 def. cause thinning of the hair or of its quality . I have an under active the the last 10 years for which I take medication but in the last 4-5 months I have noticed my previously thick glossy hair has reduced by at least a half and it has become very frizzy. I have an auto immune gastritis and my vit B12 has been checked before butit was normal I do have other symptoms of the defeciency like shortness of breath nerve pain , pain in the palms of my hand foggines the brain dizziness

  12. Julia says:

    Hello Carolyn, My partner has just been diagnosed with B12 deficiency and I’ve just googled to see the symptoms and come across your post. I have had to leave him because his rage was so bad – I was very scared. This is not the man I know, he was never violent or abusive, and all of a sudden this happens! I’m not sure what I will do now but I’m too scared to go back as I don’t know when it will happen again. There is no warning. I don’t think he had any of those other usual symptoms. He is now under a Doctor and having weekly shots. How are you going now?

  13. connie b. says:

    I have a vit.b12 deficiency,vit. d deficiency, hyperthyroidism, high blood pressure, diabetes(type 2) high chloresterol.Im extremely tired, my joints on the rt. side of my body aches all the time. im becoming so depressed and I already take 3 different anti-depression meds. Could this be the results of 1 desease?

  14. Carolyn says:

    has anyone experienced a difference in temperment. Anger even rage. I remember the day I noticed this and yet I feel helpless as to what to do. He has always been a healthy man Bike riding and now is attemptin racing. there is no warning when his anger starts nor does there seem to be a warning. Has anyone has any experience with this? I appreciate any info given

    ffffffffff””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””””” ei

  15. Carolyn says:

    My husband was diagnosed with b12 dificiency. Has anyone experienced low moods and even rage with this. He just started the shots so I pray this helps. This is not the same man I knew even 2years ago.(been together 35). I remember the day I noticed the change. Please tell me if anyone else has had this experience please

  16. Rach says:

    This information is a little bit misleading because you can have a B12 deficiency without suffering from anemia. I was diagnosed with B12 deficiency today – my levels were below 50 (usually meant to be between 200 and 600) yet my iron count is the best in a female my doctor has ever seen. Unfortunately that high iron count meant I wasn’t diagnosed properly until my levels were critically low. Perhaps a better way of saying it is that “for most people anemia is the first sign”.

  17. Adam says:

    i was experiencing numbness in my extremities and cold wet feeling in thigh. i was tested and i was b12 deficient. i have been prescribed mecobalamin supplements. mecobalamin is alternative to natural b12. symptoms have gone down (i think) but yet to confirm it… i still have slight numbness.

  18. Dean says:

    Does Niaspan have any impact on B12? I currently take Niaspan, along with Multi-Complex B vitamins, so I did not know if Niaspan has any impact with B12 causing a person to be deficient with B12.
    Thank you.

  19. Janis says:

    Vitamin B12 deficiency symptoms are following: itchy tongue, white spots on the skin (result of melatonin disappearing from the skin),….

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