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References (n.d.)

This is why patient support groups exist

Baumann MU, Schneider H, Malek A, Palta V, Surbek DV, Sager R, Zamudio S, Illsley NP

Negative correlation among vitamin B12 levels, obesity severity and metabolic syndrome in obese children: A case control study The Correct Way to See It On average, people with low B12 are less healthy than people with normal B12 levels
