? evidence processing, including just grinding into flour & levening, unhealthy.
Vast majority of c-c bonds in all fats, plant & animal, are single, aka saturated (no room for more hydrogen side atoms). If double bonds (unsaturated) present & converted to single bonds by industrial hydrogenation lacking control: ½ cis, ½ trans. All living cells do cis-. See google images. Less trans-: not as bad.