What the Authoritative Sources Say About B12 Deficiency and Supplementation The National Institutes of Health Office of Dietary Supplements publishes the most thorough citation-backed overview of vitamin B12 its role in red blood cell formation and neurological function, the populations most at risk for deficiency (older adults, people on long-term metformin or proton pump inhibitors, vegetarians and vegans, people who have had gastric bypass surgery), and the recommended daily intake at each life stage
Cold-chain specifics: Cold packs available and cold-chain shipping are not the same thing
16 Participants Participants were recruited using advertisements in social media support groups for individuals with vitamin B12 deficiency/pernicious anaemia (see Acknowledgements)
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It plays a crucial role in the maintenance of the myelin sheath that surrounds nerves, thereby supporting neurological health
Robust Vial Integrity: Our vials feature thick borosilicate glass, durable rubber stoppers, and tamper-evident flip caps to lock out oxygen and humidity