Eating too much added sugar can irritate your gut, making it more oxygen-rich, which helps bad bacteria thrive and hurts the good ones—this imbalance might contribute to metabolic problems like obesity or diabetes.

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Added sugars, gut microbiota, and host health

Narrative Review

Human & Animal

2025 Dec 31

Eating too much sugar can change the good bacteria in your gut, letting in bacteria that like oxygen and hurting the ones that don’t, which can lead to health problems like obesity and diabetes.

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Source Study

Added sugars, gut microbiota, and host health

Score: 1

DOI: 10.1080/19490976.2025.2592431

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