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Palmitoylethanolamide counteracts high-fat diet-induced gut dysfunction by reprogramming microbiota composition and affecting tryptophan metabolism

Pirozzi C, Coretti L, Opallo N, Bove M, Annunziata C, Comella F, Turco L, Lama A, Trabace L, Meli R, Lembo F, Mattace Raso G, et al.. Frontiers in Nutrition, 2023; 10:1143004.

Laboratory studyOther animals

Design
Laboratory study
Subjects
Male mice on a high-fat diet, 5 to 6 in each of three groups
Dose used in the study
30 mg/kg a day of ultramicronised palmitoylethanolamide by mouth
Duration
7 weeks, starting after 12 weeks on the high-fat diet
What was measured
Inflammation in the colon, the tryptophan to kynurenine pathway, serotonin levels and the make-up of gut bacteria

What the authors reported

The authors reported lower inflammatory markers in the colon, higher serotonin and lower kynurenine, and a shift in gut bacteria towards butyrate-producing types. The ratio of the two main bacterial groups returned to the level seen on a standard diet.

Limits of this study

A study in 5 to 6 male mice per group, in one model of obesity. The authors name these limits. A human trial in this database, Batacan 2024, found no significant change in gut bacteria. The study was partly funded by Epitech Group, which makes the product.

Source

doi:10.3389/fnut.2023.1143004

Entry checked against the full text at the publisher (Frontiers) on 2026-09-21. The dose shown is the dose the researchers used. It is not a recommendation. How to read this page.