



Dentists tell HuffPost that yogurt's sugar content can combine with mouth bacteria to produce acid that erodes tooth enamel over time, especially with sugary or topping-laden varieties like fruit-on-the-bottom or granola-mixed cups. Plain or unsweetened Greek yogurt is recommended instead, since milk-based yogurt's natural calcium, phosphate and casein proteins actually help protect enamel.
A 2022 study cited in the piece found yogurt intake associated with lower risk of tooth loss from periodontal disease, so the food isn't a villain outright. Dentists suggest swallowing yogurt promptly rather than swishing it around, rinsing afterward, and chewing sugar-free gum to limit any damage.
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