The label also warns that it contains benzyl alcohol and aluminum, and that serious reactions, including allergic reactions, have been reported with parenteral vitamin B12
This is probably where the idea that taking more vitamin B12 than you need will give you extra energy originally came from
While oral supplements are a convenient option for many, injections provide a reliable and effective solution for those with absorption issues or more severe deficiencies
FAQ Vitamin B12 Injections: Good or Bad
To minimize discomfort, ensure the area is clean and relaxed, use a new needle, and inject slowly
Additionally, inflammation in the gut may disrupt communication between intestinal cells and the endocrine system, affecting hormones that regulate appetite and energy expenditure