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Vitamin B12 deficiency symptoms: 8 warning signs of low levels 'inside your mouth' VITAMIN B12 is fuel for the body and the myriad symptoms that accompany low B12 serve as a case in point

Journal of Molecular Histology 53 (1): 133143

B12 plays a key role in several processes like producing red blood cells, converting food into energy, and producing nerves

McFarland LV, Huang Y, Wang L, Malfertheiner P (2016) Systematic review and meta-analysis: multi-strain probiotics as adjunct therapy for Helicobacter pylori eradication and prevention of adverse events
