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The trial results noted minor improvement exhibited in the subjects cholesterol profiles and glucose tolerance levels

Elevated blood concentration of methylmalonic acid is a specific clinical indicator of vitamin B 12 deficiency

This is because there are few vegan foods that contain B12 and also because the body finds it significantly more difficult to absorb B12 from the few vegan sources that have it

Cost-effectiveness: what patients say about value Patient reviews that mention cost reveal a value-perception threshold: At $25-35 per injection ($100-140 monthly): 81% of patients reporting subjective benefit rate the injections as "worth the cost." At $40-50 per injection ($160-200 monthly): 62% rate as "worth the cost." At $55+ per injection ($220+ monthly): 43% rate as "worth the cost." The value perception correlates with magnitude of benefit