Metformin, the first-line oral glucose-lowering agent recommended by NICE for type 2 diabetes (NG28), is well established as a cause of B12 malabsorption
Kennedy Jr., said he was a big fan of peptides and had used them himself
Some of Kennedy's friends and associates are among the biggest proponents, including self-described "biohacker" and "longevity expert" Gary Brecka, who sells peptide injectables, patches and nasal sprays through his website for $350 to $600 each
Additional Recommendations for B12 Deficiency Management Adherence to Treatment Plan: Strictly follow your healthcare providers prescribed treatment plan, avoiding any skipped doses of medication or supplements
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