For some of us, when it comes to coffee — we can’t get enough.
Sure, coffee is one of those beverages that goes in and out of favor with regard to health. But most of the time, you hear only about its effects on overall or systemic health. So, what impact does coffee have on oral health?
Recently, a new meta-analysis looked at coffee’s effect on oral cancer. Its authors analyzed 11 case-control studies and four cohort studies involving 2,832,706 controls and 5021 cancer cases. Overall, it appeared that coffee does have a protective benefit. Heavy users showed a 37% reduction of oral cancer risk compared to those who drank little or no coffee.
Though the authors note some significant limitations to their findings – including study design and bias – their work does jibe with earlier research.
A Rich Source of Antioxidants
And it’s not all that surprising, really. After all, coffee is a rich source of antioxidants. Antioxidants keep free radicals in check and keep them from damaging other cells. In fact, per serving, coffee offers more antioxidants than broccoli, blueberries, oranges, and other antioxidant powerhouses.
Coffee also has four times as many polyphenols as green tea. You can thank its tannins for that. These polyphenols offer micronutrients that not only play a role in preventing cancer and heart disease but inhibit plaque-producing bacteria on teeth.
Drinking coffee may also protect you from periodontal disease by muting the inflammatory processes that are harmful to gums and and the supporting bone. Caffeinated coffee may also protect against type 2 diabetes – an condition strongly linked with gum disease.
The Dark Side of Java
Of course, coffee has its downside, as well.
Its dark hue may stain your teeth over time. Because coffee lingers on your tongue, it may give you bad breath. Its acidity may also weaken tooth enamel.
And bear in mind: All of the studies showing coffee’s benefit used black caffeinated coffee only. No sugar. No milk. No cream. No flavors. Most were done with levels of consumption up to three cups a day. Several studies noted that drinking more than this may actually be more harmful than helpful.
So when it comes to reaching for your cup of Joe, it might be best to remember the basic principle of toxicology credited to Paracelsus: “All things are poison and nothing is without poison; only the dose makes a thing not poison.”
Everything in moderation.
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