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The choice is a research-design one
There is a significant disconnect between the official medical understanding and the patients reality
Research suggests different mechanisms of action between these compounds
Persistent fatigue, brain fog, low mood, difficulty losing weight, tingling in the hands or feet, frequent illness, or feeling generally off despite eating well and sleeping enough
In a study (3) of people with normal levels of the vitamin, a B12 supplement didnt have an effect on depression
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