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The prevalence of cobalamin deficiency among vegetarians assessed by serum vitamin B12: A review of literature

They have been reported to reduce symptoms of angina and peripheral vascular disease, and they may improve outcomes for people with serious heart conditions, such as coronary heart disease or heart failure [5]

PMCID: PMC6930613

Today's animals, which are not endangered species are also not the chewy, range-fed animals of decades ago
