Causes of ulcers in the mouth: Blame it on low-grade cooking oils in street food

Allergy-related mouth sores: Low-quality oil, especially in heavily processed sauces and deep-fried street food, is a dietary concern. It may also directly contribute to mouth ulcers and allergic reactions in those who are sensitive. Here’s why being mindful of what you eat and where you eat it can help protect your health.

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