The Claim
High-heat cooking methods that promote nonenzymatic browning are associated with increased formation of advanced glycation end-products (AGEs), including N-ε-carboxymethyllysine (CML), which are linked to reduced gut microbiota diversity and decreased abundance of butyrate-producing bacterial taxa such as Lachnospiraceae and Ruminococcaceae in animal models.
What the research says
Not yet evaluated
We are still looking at what the research says.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Cooking food at high temperatures that cause browning increases levels of certain chemical compounds called AGEs, which are associated with lower diversity of gut bacteria and reduced levels of specific bacteria that produce butyrate in animals.
See the scientific wording
High-heat cooking methods that promote nonenzymatic browning are associated with increased formation of advanced glycation end-products (AGEs) such as N-ε-carboxymethyllysine (CML), which may reduce gut microbiota diversity and suppress beneficial butyrate-producing bacteria like Lachnospiraceae and Ruminococcaceae in animal models.
When food is cooked at high heat, sugars and proteins react to form complex compounds that the body cannot break down. These compounds reach the gut intact and change what bacteria there can eat. Some bacteria that make harmful gases thrive, while bacteria that make beneficial fats like butyrate lose their food source and decline. This shifts the gut community away from healthy bacteria and toward ones linked to inflammation.
What the research says
1 studyThis study found that foods cooked at high heat might actually help produce more good gut chemicals called butyrate, not less — which is the opposite of what the claim says. It didn’t find evidence that these cooking methods hurt the helpful gut bacteria mentioned.
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.