Sacha inchi oil alleviates gut microbiota dysbiosis and improves hepatic lipid dysmetabolism in high-fat diet-fed rats

Food Funct. 2020 Jul 1;11(7):5827-5841. doi: 10.1039/d0fo01178a. Epub 2020 Jul 10.


Dietary ω-3 polyunsaturated fatty acids (PUFAs) are beneficial for humans against the development of hyperlipidaemia, but the underlying mechanisms are still poorly understood. Here, we demonstrated that oral consumption of sacha inchi oil, which is rich in α-linolenic acid, alleviated dyslipidemia, hepatic steatosis and inflammatory infiltration in high-fat diet (HFD)-fed rats. Sacha inchi oil administration reversed gut microbiota dysbiosis and altered the gut microbiota metabolome and in particular prevented bile acid dysmetabolism caused by a HFD. Sacha inchi oil intake ameliorated hepatic lipid dysmetabolism in HFD-fed rats, via potentiating the biosynthesis and reuptake of bile acids, reducing the de novo lipogenesis, promoting fatty acid beta-oxidation, and alleviating the dysregulation of glycerolipid, glycerophospholipid, and sphingolipid metabolisms. The results showed that dietary sacha inchi oil can alleviate gut microbiota dysbiosis and reduce lipid dysmetabolism in HFD rats, and provide novel insights into the molecular mechanisms by which plant-derived ω-3 PUFAs prevent the development of hyperlipidaemia.

MeSH terms

  • Animals
  • Diet, High-Fat*
  • Dietary Fats / metabolism
  • Dysbiosis* / drug therapy
  • Dyslipidemias / drug therapy
  • Dyslipidemias / metabolism
  • Euphorbiaceae*
  • Gastrointestinal Microbiome / drug effects*
  • Hyperlipidemias* / metabolism
  • Hyperlipidemias* / pathology
  • Hyperlipidemias* / prevention & control
  • Liver / drug effects*
  • Liver / metabolism
  • Liver / pathology
  • Male
  • Plant Oils / metabolism
  • Plant Oils / pharmacology*
  • Plant Oils / therapeutic use
  • Rats, Sprague-Dawley
  • alpha-Linolenic Acid / metabolism
  • alpha-Linolenic Acid / pharmacology
  • alpha-Linolenic Acid / therapeutic use


  • Dietary Fats
  • Plant Oils
  • alpha-Linolenic Acid