can you inject vitamin b12 subcutaneous Best Injection Site: Administering B12 Shots Safe B12 Injection Guide at

As shown in the Figure above, at the end of a month, weekly nasal administration results in significantly higher serum Vitamin B12 levels than after intramuscular administration

This mechanistic distinction means the compound could theoretically be combined with appetite-suppressing peptides for a protocol that simultaneously reduces energy intake (GLP-1) and restores adipocyte energy expenditure (NNMT inhibition) though this remains purely theoretical without published combination data

MOTS-c drives AMPK-dependent metabolic shifts that require NAD+ as a cofactor for mitochondrial respiration and sirtuin activity

This is really about personal preference

Animals themselves are often supplemented with B12 in their feed