I was listening to a podcast with Raw Egg Nationalist: https://search.brave.com/search?q=raw+egg+nationalist&source=desktop
And he makes the point that yes, even going back 2,500 year ago it was understood that meat makes for boldness and vigor, and that a more controllable society is vegetarian. Socrates says so in Plato's Republic. Again, this is the reason primarily why, not global warming, they want us to turn away from meat.
For the lower classes:
"Here follows a rustic picture of their way of life. They spend their days in houses which they have built for themselves; they make their own clothes and produce their own corn and wine. Their principal food is meal and flour, and they drink in moderation. They live on the best of terms with each other, and take care not to have too many children."
For the guardians:
"But our warrior athletes must be wide-awake dogs, and must also be inured to all changes of food and climate. Hence they will require a simpler kind of gymnastic, akin to their simple music; and for their diet a rule may be found in Homer, who feeds his heroes on roast meat only, and gives them no fish although they are living at the sea-side, nor boiled meats which involve an apparatus of pots and pans; and, if I am not mistaken, he nowhere mentions sweet sauces."
https://www.gutenberg.org/cache/epub/1497/pg1497-images.html
Food is a form of control, but at the same time your talking about something different. You proably already know this, but the difference between scat and poop in the woods.
Predators have a higher ph balance from eating meat, if I had to guess maybe something to do with bacteria and/or fungi from the prey maybe, so their poops are very soft and runny. Think coyote or bear poop.
Herbivores have a lower ph balance and their poop is very hard as a result, like deer or rabbit poop.
But yes the food pyramid is a complete fabrication and its main goal was to drive sales, not promote healthy lifestyles.
Eating three meals a day is why we have so many overweight people and people dying from heart attacks at 50 and 60 and has been increasing for decades.
If people would just fast, even for a few days they can reverse years of damage. But instead they are told that may damage them instead.
Once youve hit a certain stage of deterioration though, no amount of fasting will help, could even kill you if done while having diabetes or organ failure.
Animation (inception towards death) nourishes (cause to grow) ment; mentis; mind (life). Therefore..mind within animation needs to re-animate self, which allows the animated (living) to draw nourishment from the animating (process of dying).
Ones DIET, noun - "manner of living" isn't about what one eats, but if one resists the temptation to want from others over the need to grow for the sustenance of self.
Resisting suggested (want) to grow within perceivable (need)...it's a choice.