Translations:Adventist Youth Honors Answer Book/Household Arts/Nutrition - Advanced/16/en
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8. What are the symptoms of vitamin B12 deficiency?
Early, noticeable symptoms of Overt B12 Deficiency: Unusual fatigue, faulty digestion, no appetite, nausea, loss of menstruation. Also numbness and tingling of the hands and feet, nervousness, diarrhea, mild depression,etc. See [1]