Risk factors that should prompt consideration of B12 deficiency include advancing age (reduced stomach acid production), strict vegan or vegetarian diets, pernicious anaemia, gastrointestinal surgery (particularly gastric bypass or ileal resection), long-term use of certain medications (metformin, proton pump inhibitors, H2-receptor antagonists), nitrous oxide exposure (including recreational use), and conditions affecting the gut such as Crohn's disease or coeliac disease
Some people still find patches helpful because they offer a slow and steady release
While at-home kits provide significant cost savings, they require proper training and comfort with self-administration
Gives energy right away
Without enough Vitamin B12, you might feel tired, have nerve problems, or anemia
Increased NAD supports redox and sirtuin-dependent pathways tied to mitochondrial function, lipid oxidation, and insulin action