Olive Oil May Slow Gastric Emptying, Study Finds
New research in mice explores how olive oil impacts blood sugar regulation and hormone secretion.
Updated on Oct. 30, 2026 in Nutrition

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A study published by the American Diabetes Association reveals that consuming olive oil before glucose intake slows gastric emptying in mice. This process may trigger specific hormone and nerve signals that regulate blood sugar levels.
Why it matters
Understanding how fats influence digestion and blood sugar response could offer new insights into metabolic health management. Researchers at UC Davis are investigating if these mechanisms could provide a framework for better glucose control.
The study observed that pre-ingestion of olive oil increased glucagon, GIP, and GLP-1 hormone secretion compared to control groups. These findings follow established knowledge that olive oil contains monounsaturated fatty acids which impact cholesterol profiles.
The players
American Diabetes Association
This is a non-profit organization that provides research, information, and advocacy to help people affected by diabetes.
UC Davis
This public research university serves as a major hub for agricultural and nutritional scientific study.
The details
Researchers fed olive oil to mice before administering a glucose solution to observe the physiological response. The team hypothesized that the oil triggers a delay in stomach emptying, prompting a cascade of hormone signals that impact glucose metabolism.
Timeline
October 30, 2026: The findings regarding the olive oil study were published.
The Big Picture
This study aligns with the UC Davis Olive Center research initiatives focused on quantifying the metabolic effects of olive oil consumption. It extends established institutional work by examining the specific hormonal pathways triggered by pre-meal fat consumption.
While these findings involve mice, they highlight how fat consumption patterns may influence glucose processing. Consumers should note that one tablespoon of olive oil contains 120 calories, and three daily shots add 360 calories to a standard diet.
The takeaway
Current interest in using olive oil shots for health benefits is largely driven by social media trends rather than human clinical evidence. Readers should balance potential metabolic benefits against the significant caloric density of adding extra oil to their daily intake.
Further reading
For more on how diet affects metabolic processes, visit the Nutrition section.
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