TY - JOUR
T1 - Impact of dietary fiber and fat on gut microbiota re-modeling and metabolic health
AU - Benítez-Páez, Alfonso
AU - Gómez Del Pulgar, Eva M.
AU - Kjølbæk, Louise
AU - Brahe, Lena Kirchner
AU - Astrup, Arne
AU - Larsen, Lesli Hingstrup
AU - Sanz, Yolanda
N1 - CURIS 2016 NEXS 370
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Background Scientific evidence suggests that diet plays a role in obesity and its comorbidities, partly via its interactions with the individual's gut microbiota. Likewise, the individual's microbiota influences the efficacy of dietary interventions to reduce body weight. However, we require a better understanding of the key components of the gut microbiota that are responsive to specific diets and of their effects on energy balance in order to use this information in practice. Scope and approach This review provides an up-to-date description of the influence of dietary fibers and fat on gut microbiota and the mechanisms presumably mediating their effects on metabolic health. We also discuss the main knowledge gaps and the need to gain greater understanding of the role of diet-microbe interactions in obesity and the associated comorbidities. Key findings and conclusions Dietary fibers are major drivers of gut microbiota composition and function, stimulating the dominance of bacteria able to utilize these substrates as energy source, although effects vary depending on both the type of fiber and the individual's microbiota. However, the key bacteria and the primary and secondary metabolic pathways mediating specific fiber-induced effects on the metabolic phenotype remain unclear, and this information is necessary to personalize fiber-based interventions. The literature also shows that gut microbiota contributes to the adverse consequences of high-fat diets on the metabolic phenotype; however, little is known about the effects of dietary fat type. Further progress is expected from translational approaches integrating controlled dietary intervention human trials, combining functional omics technologies and physiological/clinical endpoints, and mechanistic studies in experimental models. This will ultimately help us to progress towards establishing informed microbiome-based dietary recommendations and interventions, which can contribute to tackling the obesity epidemic and its comorbidities.
AB - Background Scientific evidence suggests that diet plays a role in obesity and its comorbidities, partly via its interactions with the individual's gut microbiota. Likewise, the individual's microbiota influences the efficacy of dietary interventions to reduce body weight. However, we require a better understanding of the key components of the gut microbiota that are responsive to specific diets and of their effects on energy balance in order to use this information in practice. Scope and approach This review provides an up-to-date description of the influence of dietary fibers and fat on gut microbiota and the mechanisms presumably mediating their effects on metabolic health. We also discuss the main knowledge gaps and the need to gain greater understanding of the role of diet-microbe interactions in obesity and the associated comorbidities. Key findings and conclusions Dietary fibers are major drivers of gut microbiota composition and function, stimulating the dominance of bacteria able to utilize these substrates as energy source, although effects vary depending on both the type of fiber and the individual's microbiota. However, the key bacteria and the primary and secondary metabolic pathways mediating specific fiber-induced effects on the metabolic phenotype remain unclear, and this information is necessary to personalize fiber-based interventions. The literature also shows that gut microbiota contributes to the adverse consequences of high-fat diets on the metabolic phenotype; however, little is known about the effects of dietary fat type. Further progress is expected from translational approaches integrating controlled dietary intervention human trials, combining functional omics technologies and physiological/clinical endpoints, and mechanistic studies in experimental models. This will ultimately help us to progress towards establishing informed microbiome-based dietary recommendations and interventions, which can contribute to tackling the obesity epidemic and its comorbidities.
KW - Diet-related diseases
KW - Fat
KW - Fiber
KW - Gut microbiota
KW - Microbiome
KW - Obesity
U2 - 10.1016/j.tifs.2016.11.001
DO - 10.1016/j.tifs.2016.11.001
M3 - Journal article
AN - SCOPUS:85002202547
SN - 0924-2244
VL - 57
SP - 201
EP - 212
JO - Trends in Food Science & Technology
JF - Trends in Food Science & Technology
ER -