Olive oil may have health benefits but can add calories if overused

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  Research from Kyoto University suggests a small amount of olive oil before carbohydrates may reduce blood sugar spikes in mice.

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  Nutritionist Rob Hobson warns that olive oil can add many calories when people drizzle it on top of their usual foods.

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  One tablespoon of olive oil contains around 120 calories and 14 grams of fat, compared with 100 calories and 11 grams of fat in butter.

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  Olive oil has less saturated fat than butter and contains fats and plant compounds associated with potential health benefits.

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  The article says the reported health benefits do not mean people need unlimited amounts of olive oil.

Who

Kyoto University scientists studied olive oil’s effects in mice. Nutritionist Rob Hobson commented on its calorie content and use.

What

Research suggests a small amount of olive oil before carbohydrates reduced blood sugar spikes in mice. Hobson cautioned that adding it to foods can increase calorie intake.

When

The article was published on 2026-10-13. The date of the Kyoto University research is not stated.

Where

The research was conducted at Kyoto University in Japan.

Why

The researchers investigated olive oil’s possible effect on blood sugar. Hobson said its benefits are best considered when it replaces other fats rather than being added to the diet.

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