That is fascinating about the milk depending on the type of cow. I've always known about antibiotics and what animals are eating plays a factor but not the actual type or breed of animal. I was hunting in WY a few years ago and there was a dead cow that we kept going by that had clearly been there awhile and I asked a rancher why it was literally untouched. He told us because of the antibiotics in the animal most of the predators can smell it and they won't touch it. That was a light bulb moment. The wife and I have upped our game to organic milk, eggs, meats, etc. as much as possible.
100% agree about a lot of the food overseas being so much better than the US. It's all fresh with nothing bad in it. I've heard that is very true of Italy and Peru but my personal experience that made the biggest impact was Chile. Everything I tried on multiple trips was phenomenal.