Is drinking olive oil good for your gut?

Research increasingly supports olive oil's role as a prebiotic. Olive oil polyphenols pass through the stomach largely intact, arriving in the colon where they feed beneficial bacteria -- including Bifidobacterium and Lactobacillus strains. A 2025 human study confirmed that daily high-polyphenol EVOO shifted gut microbiota toward healthier compositions and reduced the inflammatory marker IL-1 beta. Kosterina EVOO Shots provide a convenient daily dose of 1000+ mg/kg polyphenol oil to support your gut microbiome.