Rare Side Effects Allergic Reactions Allergic reactions to Vitamin B12 injections are rare but can be serious
For researchers using oral capsules, taking the compound 30 to 60 minutes before meals in a fasted state may enhance fat oxidation effects, though this recommendation is based on theoretical considerations rather than controlled studies
Follow your providers recommended frequency (typically weekly B12 or once-twice weekly lipo shots) consistentlymore frequent dosing wont improve results and may increase side effect risk
If youve been diagnosed with a vitamin B12 deficiency, be prepared to need shots for at least a month or two before noticing major improvements
Contraindications : Individuals allergic to cobalt or any other ingredient in the injection should avoid B12 injections
Other common symptoms include difficulty concentrating, memory problems, lightheadedness, or even shortness of breath with mild activity