It has been noted in several studies that canker sores are either caused or triggered further when there is a deficiency of folic acid, zinc, or iron in the human body. Deficiencies of calcium can also cause canker sores, but more than causing them, calcium deficiency can worsen the situation.

Aug 11, 2014 - Yes, alcohol may contribute to these small, shallow ulcers. After a night of drinking, some people may notice a canker sore or two - which are little round ulcers inside the protective lining of their mouths. Unlike cold sores, canker sores are not caused by the herpes virus and are not contagious.

Hope this helps. Drinking always makes me feel worse but I still do it. i don't know why.

It has been noted in several studies that canker sores are either caused or triggered further when there is a deficiency of folic acid, zinc, or iron in the human body. Deficiencies of calcium can also cause canker sores, but more than causing them, calcium deficiency can worsen the situation.

Methyl folate, a more available form of folic acid. B vitamins, esp B12. Magnesium, or a soak in epsom salts if supplement upsets your stomach. A good plant based multivitamin. Most of those gimicky health foods arent as helpful as a good well balanced diet