[gchamonlive]

> The medical establishment and journalism have found it extremely uncomfortable over the past decade to notice that obesity has negative health consequences because it might embarrass some fat people

Maybe, or maybe it's the bottomless pockets of the sugar industry lobby.

> Have diets really gotten noticeably unhealthier over recent decades?

Diet is only one of the factors on obesity and it's health consequences, you also have stress, sleep deprivation, lack of exercises, loneliness and isolation.

[jampekka]

Diet and exercise (to lesser extent) are the mechanism of obesity. The other factors may affect diet and exercise. A massive other factor for the latter is driving.