Mum-of-five Katie shared the photo via Instagram on Wednesday (12 August) as she promoted a weight loss product.
In the snap, the Celebrity Big Brother winner grinned while wearing a neon bikini top and grey jogging bottoms.
The photo appeared to attract mixed comments, with some praising her, and others saying she was a bad role model.
Responding to negative comments, Katie replied on Instagram: "I'm not perfect and not trying to be it just seems WHATEVER I do people will always pick holes in me but I'm used to it now.
"Pick holes in my body all you like but I know I'm very lucky to have a body like this after five children and can only thank my mum and dad's genes but I'm sure if any of you pose in a bikini you're not going to breathe right out (sic)."
After more comments, and some in support of the former glamour model, Katie said: "Jealousy from people makes me stronger so thank you."
Katie is set to open up about her 20-year career in the limelight, including her romance and heartbreak, for new Channel 5 documentary, Katie Price: In Therapy, which is set to air on Friday 21 August on Channel 5 at 9pm.
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