The former Big Brother star is among the celebrities backing a new campaign launched by Good Morning Britain called #SelfieEsteem.
It encourages people to take a selfie and upload it immediately online without any filters or airbrushing. Their message is self-acceptance.
Speaking on the show, Josie said: "I take about 100 selfies before I get the right one. And then I've started adding filters these days.
"I don't think I'm the only person in the country who has suffered from low self esteem, I know that some of the most beautiful women have got no self esteem at all and when you've got low self esteem it doesn't just ruin relationships, it also affects your life.
"I've not gone for so many opportunities because I have had such low self esteem at the time. I've been invited to amazing events and I've not gone because I've couldn't find anything to wear, I've got such low self esteem and you compare yourself to all these people are in their nice little bodycons [dresses], looking great and you think 'oh I don't belong there.'"
Good Morning Britain presenter Susanna Reid told Josie she should never feel like that.
"It makes me so upset to hear someone beautiful and fabulous and wonderful saying that," she said. "No one should should be saying I don't want to go out because I'm so worried about how I look."
Both Josie and Susanna have joined the #SelfieEsteem campaign by uploading their non-filtered, first take pictures to social media.
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