Even though soybean oil is full of linoleic acid, it didn’t make the body’s enzymes that turn it into other fatty acids work faster — so it doesn’t lead to more inflammation as some fear.

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Evidence from Studies

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Contradicting (1)

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Foods Fortified with Soybean or Palm Oil Show No Effect on Inflammation or Oxidized Low-Density Lipoprotein in Adults with Overweight or Obesity: a Secondary Analysis of a Randomized Placebo-Controlled Crossover Trial

Randomized Controlled Trial

Human

2026 Feb

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Source Study

Foods Fortified with Soybean or Palm Oil Show No Effect on Inflammation or Oxidized Low-Density Lipoprotein in Adults with Overweight or Obesity: a Secondary Analysis of a Randomized Placebo-Controlled Crossover Trial

Score: 58

DOI: 10.1016/j.cdnut.2025.107635

Similar Assertions

After eating soybean oil daily for a month, the level of a fatty acid called arachidonic acid went down in red blood cells — which is surprising because people thought it would go up.

79%

Eating a lot of soybean oil for a month lowered levels of DHA — a healthy omega-3 fat — in red blood cells, possibly because the two types of fats compete to get into cell membranes.

72%