'If these girls are obese I guess I am too': Fiona Falkiner slams columnist for suggesting Sports Illustrated's decision to use curvy women on its runway was 'irresponsible'

She is currently enjoying an idyllic holiday in Bali.

But Fiona Falkiner has also been spending her holiday promoting positive body image, after a Sydney columnist questioned Sports Illustrated's decision to use plus-sized models on their runways.

Taking to Instagram to share a series of photos documenting her overseas getaway, the 33-year-old former Biggest Loser host emphasised the importance of confidence for all women.

'If these girls are obese I guess I am too': Fiona Falkiner (pictured) has slammed a columnist for suggesting Sports Illustrated's decision to use curvy women on its runway was 'irresponsible' 

One photo, which showed Fiona relaxing in a pool with fellow model Ali Tate Cutler, was captioned: 'Love being around my fellow self-love Queen @ali_tate_cutler.

'It's so important to surround yourself with like-minded people,' she continued, adding the hashtags 'sisterhood', 'body positive', and 'every body is beautiful'.

Fiona appeared to be criticising the Daily Telegraph, which ran an opinion piece which claimed Sports Illustrated's decision to feature curvier women on their runway was 'irresponsible.'

'Parading and glorifying size 20-somethings on any runway promotes an underlying and irresponsible message that doing nothing about your weight is OK,' the article stated.

Body positive: Taking to Instagram to share photos documenting her overseas getaway, the former Biggest Loser host, 33, emphasised the importance of confidence for all women

Solidarity: Fiona made her opinion quite clear in her social media posts 

Solidarity: Fiona made her opinion quite clear in her social media posts 

Fiona shared another photo, this time a collage, which showed her flanked by two Sports Illustrated models.

'Shout out to my curvy sisters who rocked the runway for Sports Illustrated,' she wrote. 'I love seeing body diversity in fashion! But if these girls are considered morbidly obese, then I guess I am too.'

Speaking to The Daily Telegraph on Thursday, Australian Medical Association NSW president Dr Brad Frankum likened using overweight and underweight models on runways to using cigarettes to promote products.

'We don't want anyone to feel ashamed or embarrassed by the way they look and everybody needs to wear clothes... but there is a difference between being confident in who you are and promoting a healthy weight message,' Dr Frankum said.

'It's a difficult message but just like we don’t use cigarettes to promote products I don’t think we should have unhealthy weights promoting products,' he added.

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