Let's go straight to the point and face up to reality: we live on a helpless world, where the most important value is probably beauty (Averagely talking, of course, let's not have stereotypes). Sounds scary to say this, and we would one hundred per cent like to pretend the average woman/man doesn't care, but we incessantly rely on beauty and fashion icons.
"The woman who is too fat will frequently, though not always, have loose busts. She is likely to have excessive hips. Her knees and ankles, instead of being trim and shapely are likely to be soft and puffy"
Back to 1901 also the anonymous writer of "Beauty's aids, how to be beautiful" with a rather pungent wit explains another method to define your body shape:
"A very thin woman is not beautiful, but she can be graceful even to a remarkable degree; but what shall we say of an old woman, overflowing with fat, no longer possessing a human form, much less the form of a woman, always gasping, sweating, and breaking out into redness at the slightest movement, looking, in short, vulgar, ridiculous, and half-bestial"
"[The fat woman] gets into clothes that are skin-tight, and she draws in her corset string until it snaps and gives at every breath and sneeze, and even then she does not look graceful and pretty, for the fat — like secrets — will out, and it rolls over and around like the little bumps and humps in a pudding bag"
Ehm... quite rude, right? Indeed, these writers from the nineties could be rather strict when it comes to judging a woman's body, probably stricter than we are today, even though we keep saying we live in a society where beauty is everything. Just have a look at these random phrases:
Do not drink much water. A little lemon juice added to it will make it less fattening. 
First and most important, drink very little, as little as possible, and only red or white wine, preferably Burgundy, or tea or coffee slightly alcoholized
In America the number of fat people is growing larger every year and the suffering endured by this usually good-natured class of people is tremendous. As a matter of fact, a great deal of this discomfort might be avoided if people would not drink such an inordinate quantity of ice water and could be made to understand that thirst does not lie in the stomach and that it is not satisfied by pouring down water by the glassful. 
Crazy, isn't it? If we ever thought that we were the ones obsessed with diets, we know found out it was always like that, and even (let's be honest) worse, since since wasn't really enough developed yet.
Have a good day everyone, let's think less about beauty and more about brain,