Like she has never eaten margerine at all, no siree. Having said that I've recently taken up baking and use real full fat butter with rapeseed oil for easier spreading / mixing. I have never willingly chosen to use margerine. Both saturated and trans fats increase bad cholesterol, but only trans fats reduce healthy cholesterol. Reducing saturated fat intake showed no link to reduced heart disease or stroke, but reducing trans fats does. So eat all the real dairy buttery shit you want.