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Active cancer, especially hormone-sensitive types, where metabolic accelerators could be contraindicated
Stainless steel needles are commonly preferred for B12 injections
How quickly will I feel the effects
Favorable 94% Mixed 6% Unfavorable overall 0% Most reported benefits Benefits users selected when logging a favorable or mixed check-in
Yet, when someone with B12 deficiency reports that symptoms re-occur 4-5 weeks after a B12 injection, and wants to inject more often, all of a sudden, this person is mislabelled as suffering from the placebo effect of B12 injections
Moreover, one-third of patients experienced a clinical improvement on oral treatment
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