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They're trans fats: https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/fats/trans-fat https://www.heart.org/en/healthy-living/healthy-eating/eat-s

• dehrmann 7y ago
  > The primary dietary source for trans fats in processed food is “partially hydrogenated oils." Look for them on the ingredient list on food packages. Crisco ~removed (FDA lets you state 0 trans fat if it's less than .5g per serving) trans fats, and partially hydrogenated vegetable oil is no longer an ingredient. Hydrogenating oils saturates them. According to Wikipedia, > Partial hydrogenation of the unsaturated fat converts some of the cis double bonds into trans double bonds by an isomerization reaction with the catalyst used for the hydrogenation, which yields a trans fat. So apparently fully hydrogenating an oil won't produce trans fat.
  • pstuart 7y ago
    Thanks for clarifying that :-D