[DOI] [PubMed] [Google Scholar] 81.Lamb G.D., Stephenson D.G
According to the NIH Office of Dietary Supplements, functional B12 deficiency is most commonly seen in patients with one or more of the following: Age over 50 stomach acid production declines with age, and stomach acid is required to free B12 from food PPI or H2 blocker use reflux medications suppress the acid needed for B12 absorption Metformin use, which interferes with B12 absorption directly Vegan or vegetarian diets B12 is found almost exclusively in animal products Gut conditions including celiac, IBS, SIBO, and Crohns MTHFR mutations that affect how B12 is metabolized once absorbed Heavy alcohol use The symptoms of low B12 are easy to dismiss: fatigue, brain fog, low mood, tingling in the hands or feet, weakness, and shortness of breath on mild exertion
Liposomal glutathione is wrapped in protective fat molecules (liposomes) that help it survive digestion and reach your cells more effectively
Improving adherence and access Patients generally do better with these medications when they know what to expect and feel supported by their healthcare provider
Ongoing guidance and monitoring to track progress and manage potential side effects
So instead of one obvious interaction, you get a bunch of subtle ones layered together
