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
2 There is insufficient data to recommend other formulations of vitamin B 12 replacement (e.g., nasal, sublingual, subcutaneous)
What to Do if You Miss a Dose Within a few days : Take the missed dose as soon as possible
In 2025, Im still skeptical of these claims, he says
Since semaglutide, with its longer half-life and higher potency, has been shown to provide more significant weight loss benefits compared to liraglutide, according to research it has become a preferred choice for many healthcare providers and patients
Retinoids intensify skin sensitivity and can make copper peptide tolerance unpredictable