B12 anemia can also lead to gastrointestinal issues like nausea and increased heart rate
Pernicious anemia is a condition that happens when the body doesn't make enough red blood cells because the intestine cannot absorb enough vitamin B 12
Medications- Certain medications, such as proton pump inhibitors and metformin, can interfere with B12 absorption, leading to deficiency over time
Medications side effects Vitamin B12 Some other prescription medications can directly cause a vitamin B12 deficiency, such as proton pump inhibitors and metformin
The same applies if your elevated B12 is accompanied by abnormal results on other labs (liver enzymes, kidney markers, CBC), or by symptoms like unexplained weight loss, persistent fatigue, abdominal pain, or easy bruising
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