They told us to ease up on the whole milk because the fat was detrimental to our health. So we listened. And sales of whole milk plummeted over the years. But wait, “the idea that spurning saturated fat will, by itself, make people healthier has never been fully proven, and in recent years repeated clinical trials and large-scale observational studies have produced evidence to the contrary.” In other words, whoops, they might have been wrong about that. But they’re totally right this time (just try to ignore the details in the video that accompanies this piece.)