b12 injection guidelines Vitamin Dosage for Adults: Cobalamin (vitamin B12) and Folate

Typically, we administer your injection in the upper arm or glutes

Nevertheless, use of metformin may decrease vitamin B 12 status: a meta-analysis of four short-term intervention trials (up to 4 months duration) in patients with type 2 diabetes found that metformin use decreased serum cobalamin concentrations by 57 pmol/L, which could have clinical implications if such patients have suboptimal vitamin B 12 status (146)

Chao, A

Practically, that means a few things to watch

Studies have examined the relationship between NNMT inhibition and cellular NAD+ levels, which are critical for numerous enzymatic reactions including those involving sirtuins and PARPs