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Many people are deficient without knowing it
For maintenance or prophylactic use (such as in a patient with short-gut syndrome who cannot absorb oral vitamins well), a common regimen is 1 mL IM once weekly
As we age, it's harder for our bodies to absorb vitamin B12 from food
Inject on either side of the tendon at the level of maximum tenderness, not into the tendon itself
Over weeks and months, this compounds into significant fat loss - especially when combined with proper nutrition and training
Traditional subcutaneous needle sizes extend up to 12.7 mm
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