Black pepper and olive oil may help the body get more from food

A new nutritional study suggests that two familiar kitchen staples—black pepper and olive oil—may do more than add flavor to meals. When used together, the ingredients appear to increase the body’s ability to absorb certain nutrients from food, potentially enhancing the nutritional value of everyday dishes.

The research, conducted by a team of food scientists and published this week in a peer-reviewed nutrition journal, examined how common seasonings and cooking fats influence the bioavailability of vitamins and antioxidants found in vegetables and grains. Bioavailability refers to how efficiently nutrients are absorbed and used by the body, rather than simply consumed.

According to the study, meals prepared with olive oil showed significantly higher absorption of fat-soluble vitamins such as vitamins A, D, E, and K. When black pepper was added, researchers observed an additional boost in the uptake of plant compounds known as polyphenols—natural antioxidants linked to reduced inflammation and improved heart health.

Olive oil acts as a carrier for nutrients that require fat for absorption,” the researchers said. Black pepper contains piperine, a compound that appears to slow the breakdown of certain nutrients during digestion, allowing more of them to enter the bloodstream.

The study

To reach their conclusions, the researchers analyzed digestion markers in a group of adult volunteers who consumed identical meals prepared in different ways. One version contained no added fat or spices, another included olive oil alone, and a third combined olive oil with black pepper. Blood samples taken after the meals showed the highest nutrient levels in participants who ate the olive oil and black pepper combination.

While olive oil’s health benefits—particularly in Mediterranean-style diets—are already well documented, the researchers say the study highlights how simple food pairings can influence nutrition in subtle but meaningful ways.

Independent experts not involved in the research described the findings as plausible and consistent with previous laboratory studies, though they emphasized the need for further investigation.

The researchers also stressed that black pepper and olive oil are not nutritional cure-alls. A balanced diet rich in fruits, vegetables, whole grains, and lean proteins remains essential. However, they believe the study may encourage people to think differently about how foods work together on the plate.

For home cooks, the takeaway may be reassuringly simple: drizzling vegetables with olive oil and seasoning them with a pinch of black pepper might not only improve taste, but also help the body make better use of the nutrients already there.