Research shows yogurt may protect against gum disease. Left unchecked, gum disease may elevate a person’s risk for heart disease.
Researchers from Japan analyzed dietary intakes from nearly 1,000 adults and found those who consumed the highest levels of dairy—specifically yogurt and yogurt-type drinks—had the healthiest gums. Their report, published in the Journal of Periodontology, credits probiotics (a.k.a. “good bacteria”) as one possible champion of gum health. Experts believe that probiotics may help to counter growth of the “unfriendly” bacteria in the mouth. Probiotics are live active cultures used to ferment foods, such as yogurt and kefir (fermented milk), and studies suggest that they may improve digestion and boost immunity too. As for gum health, it’s not yet clear how much yogurt (or other fermented dairy foods) one needs to consume to reap the benefits, says Yoshihiro Shimazaki, D.D.S., Ph.D., of Kyushu University, the study’s lead author.