This is because their bodies cant absorb it well
[6] [3] [10] A mild deficiency may not cause any discernible symptoms, but moderate deficiency can cause various symptoms, such as feeling tired, lightheadedness, headaches, cold intolerance, pale skin, sore tongue, upset stomach, loss of appetite, hair and skin color changes, numbness or tingling (pins and needles) of the fingers and toes, and tinnitus, and vision, cognitive or psychological problems
What are B12 shots (vitamin B12 injections)
Because BUDs are influenced by how medications are prepared and regulated, it's helpful to understand the difference between 503A and 503B pharmacies
Encourage diet sources of B where possible, and adherence to the injection schedule.