She won Cycle 6 of "America's Next Top Model" back in 2006 -- and now, Danielle "Dani" Evans is speaking out about her changing appearance.

The model has been the target of online attacks on her Instagram page, with some suggesting she bleached her skin and doesn't eat. Now 28, Evans is speaking out.

"To all the simpletons who constantly comment with pseudo concern about my physical appearance now, vs 10 years ago -- it's called maturing and gracefully aging," she says in a new Instagram post today. "I thought we all learned this basic fact in 3rd grade. So let's stop with the belligerent comments about me needing to eat and the absurd questions if I'm bleaching my skin."