I find it really annoying when women (and it is usually women) talk about diets, calories, how many steps they have done and 'being good' regarding food around my daughters. My SIL does it all the time and seems to have no idea that it might effect them and their ideas about what is important to women.
Neither I nor my daughters are overweight and we eat healthily, they are 9 and 7. I just hear it all the time and wish people wouldn't do it as I do think they will take it all in. Grr