It is sad to see how we are going from fat phobia to carb phobia, repeating the same mistakes 50 years later. I have genetic metabolic disease and I have thought about this many times. My conclusion is simple enough: Eat real food, ignore the macros, listen to your body and adapt your food intake accordingly. Paul Jaminet's diet [1] is the closest I have found to fit this idea. [1] http://perfecthealthdiet.com/
I disagree strongly. Eating shouldn't make you tired. I could eat 2 1/3 pound greasy cheeseburgers with toppings but if I skip the buns, I feel like I ate nothing.
There is something legitimate to intermittent fasting, ketogenic diets, avoiding refined carbs, avoiding bread etc.
I have a serious disease that is thought to prevented by ketogenic diets. And I think there's an equal chance I got the disease from refined carbs as anything else.
I also know many so-called experts in this field (MDs) and they know nothing; and worse they do not want to know anything.
My conclusion is simple: just don't eat bread or drink any sugary drinks.