Experiencing Needles and Pins
Due to nerve damage, tingling sensations of pins and needles are a chronic symptom of a protracted vitamin B12 deficiency. Vitamin B12 plays a significant role in the metabolic pathway that leads to the production of myelin, which causes nerve injury over time. Myelin is a lipid substance that insulates and protects nerve endings as well as envelops nerve terminals. Without sufficient vitamin B12, myelin is produced improperly and the nervous system cannot function normally. The resulting prickling sensation in the feet and extremities is known medically as paresthesia. The neurological symptoms caused by a deficiency in vitamin B12 coexist with anemia. According to a study, vitamin B12 deficiency causes neurological symptoms in approximately 285 individuals.
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