When I was a kid in the 50’s and 60’s, we had just two ‘fat kids’ in my school. They were from fat families, where mom & dad and grandparents were all fat. It was a small town so we all knew everybody and their cousins.
We ate pork and fat fried everything, being a Southern town in northern Mississippi. Kids weren’t fat as a general rule. This was before real sugar was replaced by High Fructose Corn Syrup in soft drinks and everything else that had sugar in it. And before the soybean oils and artificial fats were touted as ‘healthy’ alternatives to butter and lard..............
And before personal computers and cell phones- when kids actuslly got outside and ran and played for hours after school instead of sitting around on the couch texting their brother or sister in the next room.