Anemia-Related Symptoms Fatigue Weakness Muscle weakness Pale/yellowed skin Rapid heartbeat Heart palpitations Shortness of breath Swollen/sore/smooth tongue Headaches Nausea Diarrhea Indigestion Incontinence Appetite problems Weight gain or weight loss Dizziness or faint feeling Nerve-Related Symptoms Nerve problems, such as tingling or numbness Mental health issues, such as depression Memory loss Dizziness Confusion Dementia Imbalance/trouble walking or standing Irritability Vision loss What Causes B12 Deficiency
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Vegans and vegetarians are not alone in being at risk of having a deficiency
However, very high doses may cause side effects such as: B12 can also interact with certain medications, including those used to treat acid reflux, such as Prilosec (omeprazole) and Prevacid (lansoprazole), as well as some diabetes medications, such as metformin
If you are self-supplementing with high doses, discuss this with your GP to ensure it is appropriate and safe for your individual circumstances