Totally agree with this as is just common sense.
But also agree with the point that if it works, don't try to fix it.
I saw a news article about Michael Phelps and 80% of his diet seemed to be bread and pasta!!!
Of course he's an Olympian but look how ripped he is in the picture.
Here's an example of his daily intake.
""A typical daily meal plan in the life of Michael Phelps, looks like this:
Breakfast: Three fried-egg sandwiches loaded with cheese, lettuce, tomatoes, fried onions and mayonnaise, two cups of coffee, a five-egg omelet, a bowl of grits, three slices of French toast topped with powdered sugar and three chocolate-chip pancakes.
Lunch: One pound of enriched pasta and two large ham and cheese sandwiches slathered with mayonnaise on white bread and 1,000 calories worth of energy drinks.
Dinner: One pound of pasta and an entire pizza and another 1,000 calories worth of energy drinks.""
Not sure about the zero carb mentality as have never tried it but you would be hindering yourself if not always doing what is best and works for you...
Plus I enjoy carbs too much to give them away completely.
Trial and error, trial and error, etc, etc...