He was recently warned that he could be on 'death row'
James Argent is preparing to swim the English Channel for Stand Up To Cancer but during a medical examination it came to light that half of his body weight is made up of fat.
The TOWIE star, who has gained ten stone in the last two years, recently met up with sport scientist Greg White to see whether he's medically fit enough to swim across the English Channel.
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However, during their meeting Greg explained that the reality star is morbidly obese, before going on to say: "Almost half of his body weight is composed of fat and a lot of that fat is around the organs.
"It's very bad in terms of long term outcome."
Arg then admitted on the first episode of Sink or Swim that he's worried about his heart especially after his dad's recently health scare.
"I am very worried about my heart because of how unfit I am and my dad has had heart problems recently.
"Literally only a week or two ago he had a pace maker fitted."
The Essex star went on to say: "I am a big guy so there is a lot of pressure on the heart.
"The fact my dad has heart problems, that was a big wake up call for me and I have to be careful."
Arg confessed he's at a crossroads at the moment and if he doesn't make a drastic change it could result in him becoming "seriously ill".
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Earlier this year, following reports that he was on death row, Arg appeared on This Morning and Dr Ranj revealed the TOWIE star needs to lose 17 inches from his waist.
"Arg, everything I’m going to say I say out of love, but it’s tough love. You know you’re significantly overweight," he explained.
"Your BMI is 44, which means you’re significantly obese and you’re at risk long-term of things like heart disease and type two diabetes.
"Looking at your measurements, you actually long-term, need to lose 10 stone, to get your BMI back towards that normal range, and you need to lose 17 inches off your waist."