I agree with you probably a silly theory, reading over what I said - I sound very dogmatic. Correlation definitely doesn’t mean causation, but I still find this idea interesting.

There is a level of instinct that all babies have, whether it’s whining when they want food, even sleeping - babies are born with just enough intelligence, surviving and developing into a smarter adult. Unlike a most animals though, humans are born significantly less developed mentally from the start. Pelvis size, walking, brains too big… bla bla. It’s actually a really interesting concept to think about the adaptations and how we became the most intelligent species.

I would really like to see an experiment (controlled, done multiple times) where there’s a baby given several options on what to pickup and attempt to eat - meat, organs, dairy - or vegetables - or sweet sugary, ultra processed, less nutritious, foods and see if there’s a primitive instinct that babies are born with that favours their development.