Watanabe, F., Yabuta, Y., Tanioka, Y., & Bito, T.Vitamin B12: Fact sheet for health professionals.Vitamin B12: Fact sheet for consumers.In addition, the feet may often feel numb and painful. International Psychogeriatrics, 24(4), 541–556 Many people experience a pins and needles sensation in their feet at some point. Cognitive impairment and vitamin B12: A review. Moore, E., Mander, A., Ames, D., Carne, R., Sanders, K., & Watters, D.Clinical Nutrition Research, 5(3), 143–152 Nutritional factors affecting mental health. The pins and needs feeling, numbness, and heavy limbs that occur are generally caused by a drop in blood pressure, which means reduced blood flow to the limbs. Oral manifestations in vitamin B12 deficiency patients with or without history of gastrectomy. European Journal of Dentistry, 6(1), 95–100 Severe periodontal destruction in a patient with advanced anemia: A case report. There are several possible causes for this. This is temporary pins and needles, which occurs when pressure cuts the blood supply to your nerves and stops them communicating with your brain. The Medical Clinics of North America, 101(2), 297–317 If you experience pins and needles only when you’re walking, it could be caused by pressure on your foot. This symptom occurs because the vitamin plays a crucial role in the nervous system, and its absence can cause. Megaloblastic anemias: Nutritional and other causes. Vitamin B-12 deficiency may cause pins and needles in the hands or feet. You can learn more about how we ensure our content is accurate and current by reading our editorial policy. We link primary sources - including studies, scientific references, and statistics - within each article and also list them in the resources section at the bottom of our articles. Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. These include fortified cereals, plant milks, bread, and nutritional yeast.Īs vitamin B-12 deficiency shares many symptoms with other nutritional deficiencies and health conditions, it is possible that people may neither notice it nor get a diagnosis.īeing aware of all of the signs can help people identify the deficiency and seek treatment.īelow, we look at the symptoms of vitamin B-12 deficiency and their causes. If a person does not eat animal products, they will need to add vegetarian and vegan sources of vitamin B-12 to their diet. Vitamin B-12 is a water-soluble vitamin that is present in animal-based foods, such as: Adults need around 2.4 micrograms (mcg) of vitamin B-12 each day. It is important to consume foods that contain vitamin B-12 on a regular basis. This deficiency can cause a wide range of symptoms that affect a person’s mental and physical health. Vitamin B-12 deficiency may affect between 1.5 and 15.0 percent of people. Share on Pinterest Vitamin B-12 deficiency can cause symptoms that impact a person’s mental and physical health.
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