Eating Olive Oil Before Carbohydrates May Reduce Blood Sugar Spikes, Study Finds

A new study found that consuming olive oil before eating carbohydrates may help reduce post-meal blood sugar spikes, adding to a growing body of research on how the order and composition of meals affects metabolic health.

Researchers found that the fat content in olive oil appears to slow the rate at which glucose from carbohydrates enters the bloodstream. Participants who consumed olive oil before a carbohydrate-heavy meal showed lower peak blood sugar levels compared to those who ate the carbohydrates first or without the olive oil.

The study, highlighted in recent health news roundups, builds on earlier research showing that eating protein or fat before carbohydrates can blunt the glycemic response. Nutritionists have increasingly focused on meal sequencing as a practical tool for managing blood sugar without medication.

For people managing type 2 diabetes or prediabetes, controlling post-meal blood sugar spikes is a key goal. Repeated large spikes in blood glucose are associated with increased risk of cardiovascular disease, nerve damage, and other complications over time.

Olive oil is already well-established as a heart-healthy fat, associated with reduced inflammation and lower risk of cardiovascular disease in Mediterranean diet studies. This new research suggests it may also play a role in blood sugar regulation when consumed strategically before meals.

Researchers cautioned that the study was small and that larger trials are needed to confirm the findings. They also noted that the type of carbohydrate consumed matters, with refined carbohydrates producing larger spikes than whole grains regardless of what is eaten beforehand.

Dietitians say the practical takeaway is straightforward: starting a meal with a small amount of healthy fat, such as olive oil on a salad or vegetables, before eating bread, rice, or pasta may help moderate the blood sugar response.