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Reviews typically cant control for confounders (diet changes, exercise, stimulant intake, sleep, stress, or other supplements), and negative experiences are often underreported
Table of Contents Feeling Worse After B12 Injection
It is worth noting that whilst some improvement may be rapid, complete resolution of symptomsparticularly neurological onescan take months of regular treatment
Patients should be aware that while some side effects may diminish over time, others may require medical attention
The RDA for vitamin B12 ranges from 2.4 mcg for adults to 2.8 mcg during breastfeeding
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