B12 is a water soluble vitamin not fat soluble so it doesn’t get stored in any significant amounts in the human body. B12 deficiency is not rare and is more common in the elderly, in people taking certain medications like antacids and metformin, and in vegans / strict vegetarians.
B12 is a water soluble vitamin not fat soluble so it doesn’t get stored in any significant amounts in the human body. B12 deficiency is not rare and is more common in the elderly, in people taking certain medications like antacids and metformin, and in vegans / strict vegetarians.