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The cholesterol in = blood cholesterol fallacy is one of the greatest nutrition crimes in history. Low fat/high carb diets are the primary culprit, along with genetics. Replacing meat and dairy with vegetables may have environmental and ethical benefits, but it doesn't have health benefits.
> Replacing meat and dairy with vegetables They weren't replaced with vegetables, they were replaced with sugar made from cheap overproduced corn, and hydrogenated oils. Neither of those is a vegetable. We wouldn't have nearly the diabetes problems we have now if they were replaced by more fresh vegetables.
For the most part vegetable intake is fine. Though excess fruit consumption year round, and in particular juice is pretty much inline with straight sugar. Your pancreas and liver don't care that it's "natural sugar" a term which irks me to no end.