Discuss: Canker sores can arise from multiple factors including deficiencies. The most common deficiencies associated with canker sores are: iron, folate (folic acid) and b12. Often self care is limited in depression, so improved nutrition can help. See the following for more info on sores: <a href="<a href="http://www.Ncbi.Nlm.Nih.Gov/pubmedhealth/pmh0001993/".
Answered 12/9/2013
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