The thing is she's still in her healthy BMI range in both photos (21 in the first, and, just, at 24.9, in the second)
"The 37-year- old actress deliberately gorged herself for a TV documentary to show how easy it is to become obese."
5ft 8in, 11st 10lb and a bmi of 24.9. Harldy obese!!! At 24.9 she's JUST in the "normal " range, at 25-29.9 she'd be classed as "overweight" She'd have to get to a BMI of 30 (197, which would be 14 ston 1lb for Ms Sweeney) Think she's got some was to go before she's obese! (and, be honest, how many people would love to look like her in picture 2 and be classed as obese???)
In my opinion, there is NO way that there's 2 stone difference in those pictures. Yes, she's a little more "rounded" but she's slouching too. Easy money???