Why Do Acidic Foods Cause Canker Sores. Its common for people who eat lots of acidic foods such as. Tomatoes lead to canker sores due to the fact that they are highly acidic.
This acid can break down and erode mouth tissue which can make you more prone to canker sore outbreaks. Avoid eating these items while suffering from canker sores and do not drink juices made from citrus fruits or you may delay the healing process and trigger a worse outbreak of sores. Im sharing personal experience NOT Medical Science here.
This is because both canned and fresh tomatoes contain citric acid.
This is because both canned and fresh tomatoes contain citric acid. Canker sores are small painful reddish lesions in the mouth that have a white or yellow center. Excessive rubbing or biting on the cheeks tends to irritate them and can cause small cuts leaving room for a canker sore to form. Other studies show that low iron levels may contribute to canker sores.