Added sugar consumption reduces oral bacterial diversity by roughly three species for every 5% of daily calories, according to a 2026 study of 5,546 adults.
Researchers found sugar, not overall diet quality, was the strongest dietary factor shaping mouth bacteria composition.
Higher sugar intake correlated with increased Streptococcus bacteria, the primary drivers of tooth decay.
Protein-rich foods and crunchy vegetables support greater microbial diversity in the mouth.
The oral microbiome responds to dietary changes and can be modified through targeted interventions.
The discovery that changes your approach to overall health
Read Full Article: https://www.naturalnews.com/2026-10-21-could-sugar-habit-be-reshaping-mouth-ecosystem.html
