X17 XCLUSIVE - Mischa Defies Her Critics, Chows Down In Public

Backlash? What backlash? Looks like Mischa Barton is still taking a big bite out of life!

The former O.C. starlet, once so lovely-looking and glamorous, continues on her downward spiral. Aside from guest-starring as a hooker on Law & Order and putting her mansion on the market, Mischa hasn't been doing much except wear unflattering clothes in public. Here we go again!

The newly blonde starlet hit up the gym this afternoon - perhaps in response to critics complaining about her weight gain? - only to chow down on some grub soon after.

Not the best idea, girl! But it proves that you don't care what people think, so kudos for that!

Check out Mischa acting fidgety and strange outside of Starbucks. Why so antsy, M?