This book actually discussed different studies / research that has been done on the subject.
For some people if you mentioned red meat and whole milk as being a part of a healthy diet they’d look at you like your nuts.
Notice in the grocery store “light or low fat” as they’re labeled...
low fat dressings, low fat butter that is essentially not real butter, low fat snacks, low fat milk, low fat cheese, egg whites...all examples of a common theme we have as a society where fat is considered the enemy so we replace it with chemicals, sugar, etc.
I was fortunate enough to grow up around my grandparents, the older generation, and my grandfather used to tell me how they would cook with lard or butter, eat whole eggs, bacon, and they moved all day and worked hard even as young kids growing up. They were healthy. They eat real food. Not “low fat” substitutes. They also grew their own vegetables and fruit. Not overweight, not on medications, and then in the 1900s the “heart healthy diet” was introduced, and look at the introduction of that and then the rise in obesity and health ailments. Of course there are other lifestyle factors that play a role here. Lack of physical exercise, etc.
Even so, obviously individual diet needs / preferences can vary widely depending on a lot of factors.
