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b12 injection covid My Opinion on shots for post Fatigue | Ask Dr. David ⚡ Running on empty?, A
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doi: 10.1111/j.1474-9726.2007.00355.x
Baracos, V

The trial data actively contradicts that use case
For men, it may result in lower sperm count and motility

Excess B12 from oral supplements is poorly absorbed at high doses (the body absorbs roughly 1 to 2% of a 1,000 mcg oral dose) and the remainder is excreted in urine

Subsequently, Hong et al
