So is the former Made In Chelsea star too skinny? She's been speaking out about the debate.
"Everyone has been saying I look too skinny but I don't think I do," Mille has told dailymail.co.uk.
Explaining how she came to be a fitness fanatic Millie said, "Last year I was on a no-sugar diet before my wedding and I started eating healthier and working out. I'm also gluten and dairy intolerant.
"I don't get upset when someone tweets about me. What's important is what my family and friends think."
What do you think? Is Millie Mackintosh too skinny or your fitspiration? Tweet us @handbagcom
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