I remember being told to avoid sugary treats for the sake of my tooth health, but with respect to weight loss, the message in the 70s and 80s was all about "fat

I remember being told to avoid sugary treats for the sake of my tooth health, but with respect to weight loss, the message in the 70s and 80s was all about "fat makes you fat" and "the only good thing to do with avocado is put it in your hair" etc. Source: My mum worked for Weight Watchers in 80s :-)