I wouldn't dispute that at all you need all three. Like I said in another thread, keep that hamburger, drop the bun and the ketchup, but keep the thin slice of tomato.
You also never want to combine high carb and high fat in an 8 hour period. Go ahead, have that pasta, just don't have butter/cream/meatballs/cheese. Have your sausage and bacon, do not eat toast or jelly or a muffin alongside it... you could always have whole grain toast tomorrow.
Unfortunately cuisine is pretty much universally designed around combining these elements. As hunter gathers this was easy, you kill a boar you ate boar that night, you forage berries you ate berries that night, food was too scarce to render those berries into a nice glaze carbing up a ham.