Of course, there are certain situations where you should talk to your doctor about the possibility of needing more vitamin B12if you are vegan (meaning you dont eat animal products), are over 60, or have a condition or take a medication that could deplete your B12 levels, leading to a variety of symptoms (see below)
While both target fat loss, their mechanisms and application strategies differ significantly
My B12 injection was due at my GP surgery on 18th September

Additional caution or monitoring may be appropriate in research settings involving: Pregnancy- or lactation-related research models, where limited safety data is available Active cancer-, tumor-, or abnormal proliferative research models, where NAD-related and metabolic-signaling pathways may influence cellular-signaling mechanisms Cardiovascular- or uncontrolled-hypertension research models, where metabolic-pathway modulation may influence cardiovascular-related biomarkers in some experimental settings Thyroid-related or endocrine research models, where metabolic-pathway investigations may influence endocrine-related observations Diabetes- or glucose-regulation research models, where insulin- and glucose-related pathways may warrant closer monitoring in experimental settings Moderate to severe hepatic- or renal-impairment research models, where compound metabolism or clearance mechanisms may be altered Autoimmune- or inflammatory-response research models, where immune-metabolic signaling pathways may influence inflammatory-related biomarkers or cytokine observations Research conditions, dosage ranges, administration frequency, protocol duration, and concurrent compounds may influence tolerability observations across experimental settings

Is vitamin B12 deficiency common in vegetarians or vegans
The addition of B12 to the compound further reduces the likelihood of feeling unwell in the early weeks of treatment