Eating snacks with 30g of soybean oil every day for a month doesn’t make your body more inflamed or damage your blood fats, even though some people say it does.

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Pro

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Against

Evidence from Studies

Supporting (1)

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Community contributions welcome

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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

This study gave people with extra weight 30 grams of soybean oil every day for a month and checked if it made their body more inflamed or damaged their 'bad' cholesterol. It didn’t — so the claim that soybean oil causes inflammation is not supported by this science.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

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

People who ate soybean oil daily for a month tended to have slightly lower levels of a key inflammation signal called IL-6, though the result wasn’t strong enough to be certain.

58

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When you cook with soybean oil, heat can turn it into a harmful chemical called 4HNE, which can damage your cells' energy factories and cause long-term body inflammation.

14

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70%