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David Simpson's avatar

Reminds me of when we were all being told butter was bad for us and we should eat oil based margarines to “lower our cholesterol”. I knew something about how margarines are made (it involved hexane, a toxic gas we used as an extinguisher in our computer rooms) and just thought it was ridiculous to replace a natural relatively unprocessed food with what is effectively an industrial product. And the whole cholesterol story turned out to be nonsense, several decades later. And another time when our neighbour’s dairy farm was cut off by snow he just gave us his raw milk rather than throw it away - just delicious. The nearest I’ve found to it recently is fresh organic goat’s milk, also delicious.

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Leslie MacMillan's avatar

Hexane would not put any fires out. It's a highly flammable solvent, sort of like gasoline, which is mostly octane and a bunch of additives. It dissolves oils efficiently and evaporates off the same way butane does, leaving no residue, hence its use in food processing.

Just because you think something is ridiculous when you don't know what you are talking about doesn't mean it isn't true. It happens to be true that oil margarines are no better for you than butter, and trans fats, typically formed during the manufacture of margarine, are worse. But that took a lot of figuring out, not just because it was ridiculous.

The cholesterol story is not nonsense. High cholesterol levels in your blood are dangerous. In your food, not so much.

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David Simpson's avatar

My bad and thanks for the correction - as a computer operator in the ‘70s I was told in the event of a fire to leave the computer room immediately and shut the door, because it would be flooded with gas to suppress the fire without damaging the computers, and the gas was toxic. I was told it was hexane, but I’m guessing it was actually halon. My point remains however - I would much prefer to eat natural unprocessed foods as close to their origin as possible, than manufactured products such as margarines.

As to cholesterol of course you’re right. My point was than in the 2000s longtitudinal meta analyses showed that there was a very weak correlation between a low cholesterol diet and levels of cholesterol in the body and health outcomes (reductions in heart attacks, for example). And later, that the real villain in our diet was sugar rather than fat. A great deal of which is added to processed and manufactured foods, ironically as a substitute for fat.

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Hulverhead's avatar

never ate margarine always use butter , try to stay away from processed foods , stuff is poison . funny tat i use lots of butter and my arteries are clear and low cholesterol

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