Another cause of B12 deficiency is its impaired absorption in the gut, in such conditions as pernicious anemia, Crohns disease, celiac disease or surgeries that involve gastric bypass, and result in the lack of intrinsic factor
GLOW is stocked as a 70 mg vial (10 + 50 + 10), 10 vials per box
NAD+ is the most cited example: it is a comparatively high-volume, sometimes uncomfortable injection that some research protocols describe delivering IM (or slow SubQ) rather than as a fast SubQ bolus
Studies have examined its activity in musculoskeletal tissue models including tendon, ligament, and bone repair research, as well as gastrointestinal cytoprotection and neurological models
For example, Vitamin B12 injections are often given every 1-2 weeks, while other vitamins may be administered less frequently