That sums it up well.
I’m all for research, it’s good to have proven methods to say “hey, this is not healthy”. But this is a no brainer. I always assume that even a healthy option at a restaurant is worse (high fat, high salt, high added sugars) than anything I’d make myself.
Nobody is kidding themselves into thinking any of these places are healthy.
I wouldn’t plant from a seed, especially a tree or shrub.
Check to see if your state as a native plant society or you can start here: https://www.audubon.org/native-plants