Allergic Reactions: While uncommon, some individuals may experience allergic reactions to the injection, which can include itching, rash, or difficulty breathing
These values help assess deficiency severity and functional B12 status
However, weight-loss results may take about 30 days to become visible, especially when combined with a healthy diet and regular exercise
The most common adverse events were mild-to-moderate headaches, similar in frequency to placebo groups
If any signs of injection site infection develop (increasing redness, warmth, swelling, or pain), discontinue use and consult a healthcare provider