Radio host has announced that she ended up in hospital after running the on the weekend. Alongside her husband Jeremy Parisi, she was who took part in the annual event.
Kelly, 45, was one of the runners in the long-distance race on Sunday, with her having completed it in just over six and half hours. The panellist - who had - said in a post on after the marathon in that she was "sore but happy". The presenter has since announced that she's been diagnosed with a stress fracture on her foot. The describes those fractures as "tiny cracks in the bone caused by overuse".
Kelly - who previously shared that she hadn't ever ran more than 5k until last month - said they are "quite common" for people running a marathon for the first time.
Kelly, who is now wearing a medical boot on her foot, spoke about having broken her foot on her Heart Drive show this afternoon. She shared on the radio station that she could be wearing the recovery boot for up to six weeks now.
She said: "I went for a post-marathon scan on my foot today. I've been following who also ran the London Marathon." Kelly added: "She's all strapped up in a boot, someone stamped on her foot and cracked a bone."
Kelly continued: "My foot looked a bit like hers' so I sent her a picture and she said 'go get an X-ray!' Well, I've walked to three to be told I've got a broken foot. I was like I could have told you that at hospital number one!"
She added: "I cannot believe the ordeal! What time is it now? Four-thirty. I set off at nine o'clock this morning, I'm not joking!" The former contestant suggested in the discussion that she visited several hospitals, including one that didn't have an MRI to assess her apparent injury.
Kelly is quoted as having said: "[Someone] wheeled me out to the road and then just off loaded me and I had to hobble across the road to another hospital who then didn't have an MRI. Oh, it's been a whole ordeal! The only thing they did wheel me to is a cashier so I could pay for it!"
She also said: "It seems that I've got a stress fracture which is quite common with first time marathon runners because we don't know what we're doing. So, I'm in a boot and it looks like I'll be in a boot for six weeks. But I've got a medal!"
Kelly has showcased her medal in a selfie with her husband Jeremy, 39, who also received one after completing the marathon, on social media recently. She's also shared photos of the boot that she's now wearing following the injury.
Speaking about the injury, Kelly also teased on the radio show that she "heard a crack" at one point. She said: "I heard a crack, and I thought I don't know if that is a blister popping or if that is a bone, let's not think about it, let's just keep going!"
Listen to Heart Drive with JK and Kelly Brook weekdays from 16:00 - 19:00 across the UK and on Global Player.
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