Some questions about nutrition advice

[therother]

Those societies do not reflect today's modern societies. The effects of a high fat diet are taking their toll on america right now.

The effects of a diet that is making people fat is having a severe toll on America (and almost every country that shares that diet). Absent other factors, eating fat doesn't make you gain body fat though. Fatty foods are not particularly fattening. There is some evidence that eating high levels of fat and sugar together could makes things worse, but I think it would be a mistake to blame the fat for that.

Are you advocating for a no fruit diet?

Not quite no fruit, but certainly only restricted amounts and then only fruits with a low glycemic index (high fibre to sugar ratio). So no grapes and bananas...