I think most people who were into food in a serious way saw margarine as something rather unnatural and unpleasant anyway.
Margarine was a French invention. A chemist called Hippolyte Mège-Mouriès came up with it in 1880 as a way of using beef tallow and skimmed milk to produce a cheap butter substitute. It was used a lot by the French navy back in the day and ultimately he sold the patent to Jurgens, which became part of Uni in the Netherlands - one half of Unilever, so it has quite a strong link to a detergent manufacturer!
Margarine evolved in the 1950s with hydrogenated vegetable oils.
However, it was ultimately replaced by "dairy spreads" in Europe in the late 70s when you had products that were made with churned dairy cream and vegetable oils and blends of butter and oils. They've removed all the trans-fats but, I would say plenty of damage was done in the mid to late 20th century when people were slathering old margarines onto everything.
Margarine was a French invention. A chemist called Hippolyte Mège-Mouriès came up with it in 1880 as a way of using beef tallow and skimmed milk to produce a cheap butter substitute. It was used a lot by the French navy back in the day and ultimately he sold the patent to Jurgens, which became part of Uni in the Netherlands - one half of Unilever, so it has quite a strong link to a detergent manufacturer!
Margarine evolved in the 1950s with hydrogenated vegetable oils.
However, it was ultimately replaced by "dairy spreads" in Europe in the late 70s when you had products that were made with churned dairy cream and vegetable oils and blends of butter and oils. They've removed all the trans-fats but, I would say plenty of damage was done in the mid to late 20th century when people were slathering old margarines onto everything.