Dietary fat and low fiber in purified diets differently impact the gut-liver axis to promote obesity-linked metabolic impairments

Am J Physiol Gastrointest Liver Physiol. 2021 Jun 1;320(6):G1014-G1033. doi: 10.1152/ajpgi.00028.2021. Epub 2021 Apr 21.

Abstract

Selecting the most relevant control diet is of critical importance for metabolic and intestinal studies in animal models. Chow and LF-purified diet differentially impact metabolic and gut microbiome outcomes resulting in major changes in intestinal integrity in LF-fed animals which contributes to altering metabolic homeostasis. Dietary fat and low fiber both contribute to the deleterious metabolic effect of purified HF diets through both selective and overlapping mechanisms.

Keywords: branched SCFA; control diet; fat; fiber; intestinal health.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animal Feed
  • Animals
  • Bile Acids and Salts / metabolism
  • Diet*
  • Dietary Fats*
  • Dietary Fiber*
  • Gastrointestinal Microbiome / physiology
  • Gastrointestinal Tract / metabolism*
  • Insulin Resistance / physiology
  • Liver / metabolism*
  • Male
  • Mice
  • Obesity / metabolism*

Substances

  • Bile Acids and Salts
  • Dietary Fats
  • Dietary Fiber

Grants and funding