Vitamin B12, also known as cobalamin, plays an important role in the formation of red blood cells. In the absence of B12, one can develop anemia.
B12 is also essential for healthy neurological function. Deficiency can lead to tingling sensations in the hands and feet and weakness.
Certain groups of people are at a higher risk of developing B12 deficiency, including older adults, vegetarians, and vegans.
Symptoms of vitamin B12 deficiency may include fatigue, weakness, constipation, loss of appetite, weight loss, and poor memory.
The treatment for B12 deficiency typically involves supplementation with B12 either orally or by injection.