A: Most people notice improvements within 1-2 weeks less pain, better digestion, or reduced swelling
The same site twice in a row is a quick way to develop irritation or lipohypertrophy
No, you cannot overdose on B12 It is highly unlikely that someone could take too much B12, says Natalie Allen, RD, a clinical assistant professor of biomedical sciences at Missouri State University
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The science in humans is close to nonexistent, so describing it as preliminary is an understatement
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