TV and radio host Piers Morgan has caused outrage online over his comments about plus-size model Tess Holliday.

The comments came after Holliday graced the cover of this month's Cosmopolitan UK magazine, wearing a green satin swimsuit.

Morgan labelled the cover and headline "absolute nonsense" and Holliday's body image as something that people "should be deterred from celebrating because it's unhealthy."

Fans of the plus size model were quick to jump to her defence, labelling Morgan's comments as "terrible" and accusing the host of "attention seeking".

Looking for attention again I see.

— whaaaaat (@KevEfc1985) September 19, 2018

It’s her life!!! Leave her alone!! It’s up to her what she looks like, what she puts in her mouth, and she earns thousands from it, about time big people get modelling contracts just as much as really skinny girls, should be all treated the same

— Ashley Gardner (@ashley1413) September 19, 2018

Holliday herself even weighed in on the commentary, questing why Morgan had been constantly talking about her over the past two weeks.

Piers Morgan's letter to Tess Holliday

"Dear Tess,

We don't know each other.

In fact, until several weeks ago, I had never heard of you.

Then you appeared as the cover star of Cosmopolitan magazine, wearing a green swimsuit and blowing a kiss under the headline: 'A SUPERMODEL ROARS! TESS HOLLIDAY WANTS THE HATERS TO KISS HER ASS.'

It was a very striking, newsworthy cover because you are 5ft 3in and weigh over 300lbs.

As such, you are someone suffering from morbid obesity.

That's not me being a 'fat-shaming douchebag', as your legion of fans will doubtless immediately scream.

That's just a fact.

The medical establishment gives that definition to anyone who is more than 100lbs overweight or has a BMI (Body Mass Index - the ratio of an individual's height to his or her weight) of 40 or more.

That's YOU.

Morbid obesity, as its name suggests, is a very serious health condition.

Those who are diagnosed with it are at greater risk for illnesses including diabetes, high blood pressure, gallstones, osteoarthritis, heart disease and cancer.

In other words, it can kill you.

Yet Cosmopolitan sat you in a throne and declared you're 'a role model for others who've been excluded this way', you're 'downright honest' and you're 'everything the fashion industry needs right now' because you 'don't conform to the narrow standard of beauty that's been set by society.'

What a load of absolute nonsense.

As with size zero models, your body image is one that people – not least yourself - should be deterred from celebrating because it's unhealthy.

In the accompanying interview, you explained why you started your online #effyourbeautystandards campaign:

'I created it out of frustration. I was angry and sad that people kept commenting on my pictures saying, "You're too fat to wear that!" or "Cover up!" And then one night, I was lying in bed and thought, "F*ck that! So I posted an image with four photographs of myself wearing things that fat women are often told we 'can't wear' and encouraged others to do the same.'

I can understand the desire to do that.

But then you said: 'I'm at the heaviest I've ever been in my life now and it took me being the heaviest to finally love myself.'

Sorry, Tess, and I say this with great respect, but I just don't believe you.

Nobody, male or female, could see their weight surge to over 300lbs if they're just 5ft 3in tall, and be genuinely happy.

Right now, I think you're trapped in a hellish spiral of self-delusion in which your soaring fame and fortune is entirely dependent on you remaining morbidly obese.

You're only getting the cover of Cosmo and endless TV appearances because you're massively, dangerously overweight yet feigning joy.

In your heart, you must know this?

The editors and producers paying you large sums of money to glamorise your morbid obesity are cynically exploiting you.

They're your enablers.

Before you ask, I'm no body perfect myself.

I'm 6ft 1in and weigh around 215bs.

My doctor says I'm reasonably fit for a man of 53, but he'd like to see me get under 200lbs.

And so would I.

That's why I work out three or four times week, and am being more careful what I eat and drink.

Unlike you, when I see a fat-looking photo of myself, I don't cheer, I cringe.

Losing weight isn't easy.

But the first step is brutal honesty.

In Britain, a well-known politician named Tom Watson has just revealed how he lost more than 100lbs in the past year by cutting out a lot of stuff he loves – sugar, bread, cheese, beer etc – and working out.

By doing so, he has actually reversed his Type 2 Diabetes.

It was being diagnosed with that condition in 2015 that compelled him to take dramatic action to change his lifestyle.

'The overwhelming emotion was shame,' he admitted. 'I felt frightened and ashamed that I had come to this point, and guilty.'

He didn't do anything immediately.

'For a year or two, I was in denial. Then I started to read a lot more and realised that if I got my weight down, it would affect my insulin level and blood pressure.'

He admits that his early workouts were 'humiliating and pathetic'.

But he kept at it, and began to lose weight. He felt better, too, with way more energy to play with his children.'

Now he says: 'Every day, I wake up happier and more relaxed, clearer-thinking.'

I believe him.

You should believe him, too, and stop believing your enablers.

More importantly, stop lying to yourself, Tess.

You have two young sons; one of 13, the other just two years old.

They need you to stay alive and be their mum.

Sorry if that sounds harsh, but it's the truth and it's time you faced up to it.

On Tuesday, you posted a very unedifying semi-naked Instagram photo of yourself to your 1.7 million followers.

You wrote the following words to go with it: '@lizzobeeating told me to caption this photo "Damn…that look good".'

The friend that told you to write that caption is plus-sized rapper Lizzo, who doubtless cheered you on when she saw it.

But when I saw your photo, which quickly went viral on Twitter, my heart sank.

'This is very sad,' I tweeted. 'She badly needs better friends, who are going to be more honest with her and explain she is dangerously overweight and should do something about it.'

You replied: 'The last 2 weeks you've been obsessed with me. Makes me feel like you're almost into thicker girls & too afraid to admit it.'

OK, well first, I love women of all shapes and sizes.

Second, I'm not obsessed with you, I'm worried about you.

We can keep having a pop at each other on Twitter, and fuel the supposed 'feud' between us.

But ultimately, I'm not criticising you for a bit of social media fun or to score a few cheap points at your expense.

I'm doing it because I genuinely feel you are promoting a very dangerous message, and because I am genuinely concerned that your own life will be in danger if you continue down this path.

If your own friends are telling you that you look 'damn good' in a photo that is so obviously deeply unflattering, then as I said, you need better friends.

A real friend would be telling you what I am telling you.

Tess, the most inspirational thing you could do right now is start to LOSE weight, not put even more on.

Imagine what a powerful message it would send to the millions of other Americans with morbid obesity if you could do what Tom Watson has done?

The bottom line is that there's nothing remotely powerful or inspiring about a 5ft 3in person breaking the scales at 300lbs.

It's just a guaranteed pathway to sickness, misery and possible death.

So I urge you to stop pretending your body is radiating some great 'positive image' to the world.

It's not.

Wake up, shape up and be the brilliant role model you COULD be if you just stopped listening to those fools who want to celebrate your morbid obesity.

You can do it, and I will be the first to salute, and celebrate you if you do.

Kind regards

Piers."