Metabolite Biomarkers Linking a High-Fiber Rye Intervention with Cardiometabolic Risk Factors: The RyeWeight Study
Artikel i vetenskaplig tidskrift, 2025
Wholegrain rye, considered one of the cereals with the highest content of dietary fiber and bioactive compounds, has been linked with reduced risk of cardiometabolic diseases. Thus, biomarkers reflecting its intake and/or the metabolic effect after consumption are essential to better elucidate its health effects. Our aim was to identify plasma metabolite biomarkers associated with a high-fiber rye intervention and to assess the associations between these metabolites, gut microbiota composition, and cardiometabolic risk factors in a 12-week randomized controlled trial comparing a hypocaloric diet with high-fiber rye (n = 108) or refined wheat (n = 99) in participants with obesity. Rye intervention increased plasma concentrations of benzoxazinoids (DIBOA-S) and phenylacetamides (2-HPA-S and 2-HHPA-S), gut microbial metabolites (indolepropionic acid, 2-aminophenol, enterolactone sulfate, and enterolactone glucuronide), betainized compounds (pipecolic-betaine), phenolic acids (2,6-DHBA and gallic acid-4-sulfate), and diverse endogenous metabolites. Microbiota composition changes were increased Eubacterium xylanophilum and Agathobacter and decreased Ruminococcus torques and Romboutsia. Moreover, the intervention effect was mostly captured by changes in metabolites and gut microbiota compared to clinical variables. Gallic acid-4-sulfate and phenylacetamides were associated with reductions in weight, fat mass, BMI, or fasting insulin levels even after adjusting for plasma alkylresorcinols, used as markers for rye intake compliance. Altogether, these metabolites may constitute biomarkers of wholegrain rye cardiometabolic effects.
wholegrain rye
randomized controlled trial
refined wheat
gutmicrobiota
metabolomics
cardiometabolic health
biomarker
Författare
Andrea Union Caballero
Instituto de Salud Carlos III
Universitat de Barcelona
Tomas Merono
Universitat de Barcelona
Instituto de Salud Carlos III
Sebastian Åberg
Chalmers, Life sciences, Livsmedelsvetenskap
Elise Nordin
Chalmers, Life sciences, Livsmedelsvetenskap
Johan Dicksved
Dept Appl Anim Sci & Welf Nutr & Management
Alex Sanchez-Pla
Instituto de Salud Carlos III
Universitat de Barcelona
Marta Cubedo
Instituto de Salud Carlos III
Universitat de Barcelona
Francisco Carmona-Pontaque
Universitat de Barcelona
Instituto de Salud Carlos III
Kia Noehr Iversen
Chalmers, Life sciences, Livsmedelsvetenskap
Miriam Martinez-Huelamo
Universitat de Barcelona
Instituto de Salud Carlos III
Anna Guadall
Universitat de Barcelona
Instituto de Salud Carlos III
Rikard Landberg
Chalmers, Life sciences, Livsmedelsvetenskap
Cristina Andres-Lacueva
Instituto de Salud Carlos III
Universitat de Barcelona
Journal of Agricultural and Food Chemistry
0021-8561 (ISSN) 1520-5118 (eISSN)
Vol. In PressÄmneskategorier (SSIF 2025)
Livsmedelsvetenskap
Näringslära och dietkunskap
DOI
10.1021/acs.jafc.5c01415
PubMed
40838659