It’s one of the things I noticed in France and Italy. Like after a few days you notice the mens’ silhouettes are alien. Not in a bad way, but noticeable.
But due to lack of protein, vs less fat and sugar? I'm sure minus the fat, many American men would also lack muscle.
That said, Italy and France are known for smoking a lot, which supresses the appetite. Your original observation was swiss though (land of milk, chocolate and cheese)?
