Older adults, who often suffer from decreased hydrochloric acid in the stomach, and individuals with gastrointestinal (GI) disorders may have lower absorption of B12.2,4 Vitamin B12 deficiency may be characterized by megaloblastic anemia, fatigue, weakness, constipation, loss of appetite, soreness of the mouth or tongue, and weight loss
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Rotate injection sites (abdomen, thighs, upper arms) to reduce local irritation
In order for the body to make red blood cells, it needs vitamin B12