B12 Calculator
You have 0 body systems affected (and a blood serum B12 of 0ng/ml).
It's therefore 0% likely that you have B12 deficiency and should start taking supplements.
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Energy / HaemopoeticScore: 0
Nervous SystemScore: 0
PsychiatricScore: 0
Eye / Ear / ThroatScore: 0
Immune SystemScore: 0
Cardiovascular / RespiratoryScore: 0
Gastro-Intestinal (GI)Score: 0
Skin / Hair / Nail / SkeletalScore: 0
Genito-Urinary (GU)Score: 0
Personal & Family HistoryScore: 0