Good point, Otzi. Most these ideas support each other and overlap. I have taken them all to heart and applied these to my life. Are any of them fads? I don't think so. They're ideas we can try out on top of our existing ways of eating to see if they provide good results. So you've brought to the front a question. Who is calling what a fad, and based on what criteria?
Which fads are you referring to? Fasting, Intermittent Fasting, ketogenic, carb refeeding, low carb, very low carb, whole 30's, seasonal eating, pescatarianism, or the Warrior Diet?
Steak, eggs, potatoes - fruits, nuts, berries and forage. Coconut milk and potent herbs and spices. Tea instead of coffee now and teeny amounts of kelp daily. Let's see how this does! Not really had dairy much, and gut seems better for it.