The Surprising Link Between Diabetes and Gum Disease

You might think of gum disease and diabetes as two completely separate problems. But they're far more connected than most people realize, and the relationship runs in both directions.

Diabetes makes gum disease more likely. High blood sugar weakens the body's ability to fight infection and slows healing, which is why people with diabetes are roughly 3 times more likely to develop periodontal disease than those without. The higher and less controlled the blood sugar, the greater the risk.

What's more surprising is that the connection runs the other way too. Gum disease is a chronic, low-grade infection, and that constant inflammation can make blood sugar harder to control. Studies have found that treating periodontal disease can lower HbA1c, a key marker of long-term blood sugar, by around 0.4%, an effect comparable to adding a second diabetes medication for some people.

Caring for your gums isn't separate from managing your health, it's part of it. For anyone living with diabetes, or at risk for it, a consistent brushing and flossing routine is one of the simplest ways to support the whole body, not just the smile.