What is the daily requirement for vitamin B12
Persons treated with Bs for liver disease (almost always using propranolol) were excluded to avoid violating model assumptions

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Severe Anemia Risks: In people with severe megaloblastic anemia, aggressive treatment can cause low potassium (hypokalemia) and sudden, serious complications
The background A reader contacted Fact Checker after she was enticed to sign up for weekly B12 shots with the claim that they're a way to lose weight, increase energy and help tissue recovery after a workout