Here’s what to eat to support healthier mouth bacteria

Maintaining a healthy oral microbiome is crucial for overall well-being, and diet plays a significant role in supporting this complex community of microorganisms in the mouth. While sugary foods and highly processed carbohydrates can feed harmful bacteria and contribute to tooth decay, a balanced diet can help beneficial microbes thrive and inhibit the growth of unwanted microbes.

Certain foods, such as leafy greens like kale, spinach, beetroot, and radishes, are rich in nitrate. Some oral bacteria, such as Neisseria, can convert nitrate into nitrite, which is involved in the production of nitric oxide in the body. Nitric oxide has various benefits, including regulating blood vessels and blood pressure. Additionally, garlic contains allicin, a compound with antimicrobial properties that can fight bacteria associated with cavities and gum disease.

A largely plant-based diet, rich in vegetables and minimally processed plant foods, may offer additional benefits for oral health. Polyphenols found in various plants, such as tea, can suppress harmful bacteria that cause cavities, gum disease, and bad breath. Drinking tea has been shown to inhibit the bacteria responsible for bad breath as well.

While there is no single "superfood" that can protect the oral microbiome, a varied diet combined with good oral hygiene and regular dental care is a reliable approach to supporting a healthy mouth.