Controversial seed oils can offer unexpected health benefits, shows new research
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Amid the efforts inspired by maha to reduce the consumption of ultraprocessed foods, seed oils have had difficult scrutiny in recent months, but a new study suggests that they may not be bad.
Researchers at the School of Public Health of the University of Indiana Bloomington found that linoleic acid, a common omega-6 fatty acid found in a variety of seed oils, could help reduce the risk of heart disease and type 2 diabetes.
Linoleic acid is found in seed oils such as soybeans and corn oil, as well as plant foods, according to a press release from the American Nutrition Society.
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“There have been increasing attention in seed oils, and some claim that these oils promote inflammation and increase cardiometabolic risk,” said Kevin C. Maki, Ph.D., an attached professor at the Faculty of Bloomington of Public Health of the University of Indiana and head scientist of the biomedical research of the West medium, in the statement.
“Our study, based on almost 1,900 people, found that the highest linoleic acid in blood plasma was associated with lower levels of cardiometabolic risk biomarkers, including those related to inflammation.”
Researchers have found that linoleic acid, a common omega-6 fatty acid that is in a variety of seed oils, could help reduce the risk of heart disease and type 2 diabetes. (Istock)
Although previous studies have explored the link between linoleic acid and cardiovascular risk factors, this latest research used “objective biomarkers” instead of depending on the self -informed dietary habits of the participants, according to Maki.
“We also measure a range of inflammation markers and indicators of glucose metabolism,” he said.
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It was discovered that people with higher levels of linoleic acid had lower levels of glucose, insulin and inflammation markers, the researchers found.
“We saw results consisting of the different measured biomarkers,” Maki said. “People with higher levels of linoleic acid in their blood tended to have a healthier general risk profile for heart disease and diabetes.”
Linoleic acid is found in seed oils such as soybeans and corn oil, as well as plant foods. (Istock)
The findings were presented in Nutrition 2025, the annual flagship meeting of the American Nutrition Society that was held from May 31 to June 3 in Orlando, although the results were preliminary.
“The summaries presented in Nutrition 2025 were evaluated and selected by an expert committee, but have not generally suffered the same pairs review process required for publication in a scientific journal,” the statement said.
“As such, the findings presented should be considered preliminary until there is a publication reviewed by peers.”
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According to the findings, the researchers requested an additional study to confirm whether a greater intake of linoleic acid intake reduces the possibilities of heart attacks, stroke and type 2 diabetes, according to the version.
The equipment also aims to determine the impact of specific types of oils.
A dietitian recommended using olive oil, pointing out that there is a “body of significant evidence” for use as part of a Mediterranean approach to food. (Istock)
Michelle Routhenstein, a dietitian registered in New York headquarters who specializes in heart disease, did not participate in the study, but shared the reaction to the findings.
“As a cardiovascular dietitian, I think this study reinforces what evidence has suggested for a long time: seed oils are not harmful; in fact, they can protect heart health,” he told News Digital.
“By using blood biomarkers, research shows that the highest levels of linoleic acid are linked to lower inflammation and better heart health.”
“This study supports, including seed oils, used in appropriate amounts, as part of a healthy heart diet.”
Routhenstein said that linoleic acid has been shown to reduce LDL cholesterol and admits healthy cell membranes.
“It is also associated with lower levels of inflammatory markers such as CRP (C -reactive protein),” he said. “These biological effects help explain their heart benefits.”
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“This study supports, including seed oils, used in appropriate amounts, as part of a healthy heart diet.”
Seed oil warns some experts
In a December 2024 study published in the GUT Medical Magazine, plants -based cooking oils, which are often used in processed and packaged foods, were linked to a higher risk of colon cancer, although dietitians pointed out limitations.
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Meanwhile, the chef and owner of the California Restaurant Andrew Guel has shared his firm Opposition to seed oils In interviews with News Digital, saying that “the change of seed oils shows that this movement is here to stay.”
“People have investigated the effects of seed oils, tried the alternatives and now demand that their favorite brands make change,” said Guel.
Some have shared precautions on seed oils. In a December 2024 study, plants -based cooking oils were related to a higher risk of colon cancer, although dietitians cited limitations. (Istock)
Sherry Coleman Collins, a dietitian of food allergy and expert from the Atlanta Metropolitan Area, suggested that precautions on seed oils can be exaggerated, but recommended choosing wisely.
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In terms of kitchen oils, Collins recommended using olive oil, noting that there is a “significant body of evidence” for use as part of a Mediterranean approach to eat.
“Extra virgin olive oil can be a wonderful and versatile oil to use in low medium heat cuisine. It knows very well and has a very good fatty acid profile,” he told News Digital.
“For more heat cooking, I like avocado and peanut oils for their high point of smoke and neutral flavor, and they also have good fatty acid profiles.”
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News Digital communicated with researchers at the University of Indiana to comment.
Peter Burke of News Digital contributed reports.
Melissa Rudy is a senior health editor and a member of the lifestyle in News Digital. The advice of history can be sent to melissa.rudy@News.com.