People suffering from canker sores (or recurrent aphthous stomatitis, RAS) often avoid eating chocolate.
Chocolate, beyond the fact that it is delicious, is a source of:
The cacao contains high levels of flavonoids, a powerful anti-oxidant.
13% of people suffering from canker sores believe that chocolate causes canker sores. 24 % feel that eating chocolate aggravates their canker sores.