The Claim
Higher intake of ultra-processed foods and drinks is associated with a lower relative abundance of Faecalibacterium and a higher relative abundance of Hominimerdicola and Phocaeicola in the gut microbiota of adults, as well as elevated salivary IL-1β levels.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Adults who consume more ultra-processed foods and drinks have lower levels of Faecalibacterium and higher levels of Hominimerdicola and Phocaeicola in their gut bacteria, along with higher levels of the inflammatory marker IL-1β in saliva.
See the scientific wording
Higher intake of ultra-processed foods and drinks is associated with lower relative abundance of Faecalibacterium and higher relative abundance of Hominimerdicola and Phocaeicola in the gut microbiota of adults, alongside increased salivary IL-1β levels, suggesting a potential link between dietary patterns and low-grade inflammation.
Eating lots of ultra-processed foods damages the lining of the gut, letting bacterial parts leak into the body. This triggers immune cells to release inflammation signals, which show up in saliva. At the same time, the gut bacteria change: good bacteria decrease and harmful ones increase.
What the research says
1 studyPeople who ate more ultra-processed foods had less of a good gut bacteria called Faecalibacterium and more of two other bacteria (Hominimerdicola and Phocaeicola), plus higher levels of an inflammation marker in their saliva — just like the claim says.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.