Oh come on, she is SOOO much thinner now than when she first came to fame. Back then, she was slim, now she looks like a freak. Most women fill out a bit between their teen years and their 30'a and after having three chilren, not shrink.
It's like Jennifer Aniston in Friends. If you catch an early episode, it's shocking how much bigger she was then than now although at the time it was originally shown, she was regarded as slim.