“It’s not just that their trying to tell us what to eat, it’s that the low-fat diet they are pushing is manifestly unhealthy.”
For children, that is. For most adults a low fat, lean protein diet with plenty of fresh veggies and fruits is the healthiest way to eat.
Children need fat in their diets for brain development.
I eat a very high fat diet, but I’ve eliminated sugar and processed foods. My family is healthier as a result. Even the arthritis in my feet went away. We are meant to eat fat.
For most adults a low fat, lean protein diet with plenty of fresh veggies and fruits is the healthiest way to eat.
There certainly was reason to think that might be true, forty years ago, when the public health community manufactured the "dietary fat causes heart disease" consensus. But the research necessary to demonstrate hadn't actually been done.
Since then, the research has been done, and it turns out to have been a mistake. There were fundamental flaws in the epidemiological studies that had suggested such a relationship existed, and the correlations that had appeared in them have not appeared in any of many large-scale random controlled trials, in in epidemiological studies that control for some what appear now to be rather obvious confounding factors.
Now it's true that some people eating diets that can be characterized as low-fat diet thrive. That doesn't mean that all low-fat diets are healthy, there are plenty of low-fat diets that aren't healthy. And it doesn't mean that even a "healthy" low-fat diet is appropriate for everyone.
In fact, given that our current health care crisis is driven almost entirely by chronic diseases - obesity, diabetes, heart disease, dementia, etc. - that are primarily the consequences of metabolic syndrome and insulin resistance, to claim that low-fat is the healthiest way to eat for "most" people is positively dangerous. Because for the very large proportion of the population who are suffering from these issues, what they need more than anything is to restrict carbohydrates - at least until their glucose response is back to where it should be.