most common symptoms of vitamin B12 deficiency is a tingling or prickling sensation in the hands and feet. This sensation is due to the deficiency’s impact on the nervous system. Vitamin B12 is necessary for the synthesis of myelin, a substance that surrounds and protects nerves. Without enough B12, myelin cannot form properly, disrupting the transmission of nerve signals. As a result, people may experience abnormal sensations, including tingling or numbness, particularly in the extremities.
Fatigue
Extreme fatigue is another indicator of a vitamin B12 deficiency. This fatigue is unlike
