Olive Oil Before Carbs Cuts Blood Sugar Spikes in Mice — SkimNews
Get the Health newsletter
Daily health & science — research, biotech, public health, the studies worth knowing. Free.
- Kyoto University researchers found that mice given olive oil 15 minutes before glucose showed a smaller initial blood sugar rise and delayed gastric emptying than mice receiving oil after glucose or water instead of oil.
- The benefit held in mice with type 2 diabetes and severe insulin deficiency, suggesting the meal-order effect does not depend on intact insulin regulation.
- Blocking glucagon alone or GLP-1 alone failed to eliminate the blood-sugar benefit, but blocking both pathways simultaneously reduced it — evidence the two hormones act in a partially redundant system to moderate post-meal glucose.
- Surgically interrupting the vagus nerves below the diaphragm altered the response, indicating that gut-to-brain nerve signaling also contributes to the meal-order effect.
- Corresponding author Daisuke Yabe said meal-sequencing is appealing because it merely changes how a meal is eaten rather than requiring people to avoid entire food groups.
- The study appeared in the journal Diabetes (DOI: 10.2337/db26-0531) and was conducted only in mice, with the authors noting human clinical trials are needed before the strategy can be recommended for diabetes management.
Why it matters: The work is the first to map the hormone and nerve circuitry behind food-ordering strategies that earlier human trials only observed from the outside. For the hundreds of millions of people managing type 2 diabetes, a meal-order tweak costs nothing and avoids restrictive diets, though the mechanism still needs human confirmation before clinical guidance changes.
Ask SkimNews
