The oil that replaced the bad trans fat (palm oil) is mostly saturated fat — which is also bad for your heart — so swapping one bad fat for another might not help much.

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Against

Evidence from Studies

Supporting (1)

Community contributions welcome

Assessment of the Presence of Partially Hydrogenated Oils (PHOs) as a Source of Industrially Produced Trans Fatty Acids (i-TFAs) in Packaged Foods in Poland, Pre- and Post-Implementation of EU Regulation 2019/649

Cross-Sectional Study

2025 Mar 18

After Poland banned bad trans fats, food companies mostly switched to palm oil, which is also full of unhealthy saturated fats — so while trans fats went down, another unhealthy fat went up.

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No contradicting evidence found

Source Study

Assessment of the Presence of Partially Hydrogenated Oils (PHOs) as a Source of Industrially Produced Trans Fatty Acids (i-TFAs) in Packaged Foods in Poland, Pre- and Post-Implementation of EU Regulation 2019/649

Score: 36

DOI: 10.3390/nu17061057

Similar Assertions

When companies stopped using the bad oil (PHOs), more than half of them switched to palm oil — which is high in saturated fat, another type of fat linked to heart disease.

78%

About one-third of companies that changed their recipes switched to healthier plant oils like sunflower or canola oil instead of palm oil.

74%

Even after removing the bad oil, nearly 4 out of 10 packaged foods still contained palm oil — which is also high in saturated fat — meaning the overall fat profile didn't get much healthier.

71%