If one of my mateys is getting fat, I tell him, "blud, you getting fat, trim some skin, ya get me". And he will be like "yeah blud, need to gym it up, been eating too many man steaks".
But suppose I were to go to one of my girl friends, and be like "you've put on a bit of weight"...I wouldn't hear the fucking end of it. They are all like : "OMG i can't believe your so rude, how can you say that, i have SOO many emotions and I am going to tell you AAALL about them while I make scene in the middle of fucking tescos" and Im like:

>>>>The survey of 5,000 women, conducted on behalf of Grazia, the magazine, found the average woman worries about her body every 15 minutes —
more frequently than men think about sex — while 29 per cent worry about their size and shape every waking minute<<<<
http://www.timesonline.co.uk/tol/news/uk/article704233.ecePerhaps those figures are a bit overkill but the notion that women worry about weight and associated qualities more than men is a fact.
Perhaps there is an evolutionary basis to it, perhaps society plays a part, more likely it is a bit of both. Women had to get tied up silly in corsets to conform to what would be deemed attractive hundreds of years ago and today with all the changes in equality women still are seen conforming to what is deemed attractive mostly by the mass media.
As I have written elsewhere imo the media is a dirty old man.
But other people have come to a variation to that theme, some accuse the fashion industry in promoting the size zero ideal of women. Other have gone further and pinpointed gay fashion designers as being behind the stripping women of their femininity.
How so? The explanation is straightforward. Slender boyish-looking teenage girls come closest to approximating the physical appearance of adolescent boys whose looks many gay fashion designers, who dominate the top ranks of the fashion world, find highly appealing.