[jgtrosh]

Obesity is significantly correlated with lower income. However, in an individual case it is not sufficient to draw conclusions.

Edit: also you seem to present the author's formulation as meaning that they believe poverty caused them to be fat. As far as I can tell she is merely pointing out a series of correlations to both prove that she, in fact, stood out as poor, and to show how this distinction affected her furthermore. Btw I'd say the only actively harmful behaviour from the company she pointed out was making her suggest a salary rather than them making an offering.