In terms of general health and feeling one’s best, agreed. No argument here. But when it comes to one’s physique, im not so sure it matters.
I could believe that *maybe* a body maintained on a healthier, optimally balanced diet responds a bit better and reduced inflammation leads to thinner skin via reduced water retention, etc but there have been so many legendary physiques built on one-dimensional diets ( eg: 90% tuna/chicken breast + rice) that I’m inclined to believe it doesn’t make a difference to one’s physique.
Gut health is everything my friend, 90% of all diseases, cancers, autoimmune diseases, ailments start in the gut. What you listed above are real whole foods, why didn't bodybuilders in the 70s ever complain about digestive issues?? They all ate real nutritious foods, primarily steak, eggs, quarts of milk, heavy cream. Bodybuilders today literally all complain about bloating, digestion issues, because all they eat is processed foods, supplements loaded with artificial flavoring, food dyes, various other bullshit. Not everyone wants to follow a carnivore diet like myself and that's fine, but if people in general just stuck to 1 ingredient foods only, they'll be way better off health wise.