Frequently, people suffering from canker sores avoid eating tomatoes.
The tomato is the most commonly-eaten fruit in Europe. This low-calorie vegetable (15kcal per 100g) has high vitamin content (vitamins C, A & B9). Its red pigment, called lycopen, is among the most powerful anti-oxydants, preventing cardio-vascular diseases, prostate cancer and helping regulate cholesterol levels.
20% of people suffering from canker sores believe that tomatoes cause canker sores. 28 % feel that tomatoes aggravate their canker sores.