Fred Sirieix took to his Instagram on Tuesday to reveal he has returned to training for the first time since he took part in I’m A Celebrity… Get Me Out Of Here!

The First Dates star, 51, is very into his fitness, previously revealing that he does 301 press-ups a day.

He was not shy about showing off his muscled physique in the jungle and regularly stripped off to his speedos.

He was also often spotting working out while in camp, doing squats using rocks for weights, alongside fellow star Marvin Humes.

Fred revealed that he lost three kilos while in the jungle due to the lack of food but said that he would’ve lost more had he not kept up his training regime.

Fred Sirieix took to his Instagram on Tuesday to reveal he has returned to training for the first time since he took part in I’m A Celebrity… Get Me Out Of Here! (pictured on show)

The First Dates star, 51, is very into his fitness, previously revealing that he does 301 press-ups a day

He was not shy about showing off his muscled physique in the jungle and regularly stripped off to his speedos

He shared snaps of him weighing himself and setting a timer for 20 minutes and 15 seconds for a quick workout.

Captioning the shots he wrote: ‘Back training today for the first time since I got out from the jungle.

‘While I was in there I trained everyday for 20 mins. Basic stuff – #301 push ups #100 squats #100 reverse squats. A set on the minute for 20 minutes.

‘The low calorie diet of rice and beans really takes its toll on the body after a while. We were all getting smaller by the day.

‘I lost quite a bit of weight but not as much as I would have done if I did not exercise. Keeping active and staying strong never made more sense!

‘But today was hard. I pushed through. I know what I need to do – build my muscles up again. It will take a little time.

‘I’m still about 73.8kgs which is 3kgs less than when I left for Australia. The stomach shrinks to cope with hunger and so now I eat much less as a result.’

Fred also shared a photo of a magazine article naming him as ‘Torso of the week’ and reflected on how he used to be much less confident with his body when he was a teenager.

He was also often spotting working out while in camp, doing squats using rocks for weights, alongside fellow star Marvin Humes (pictured)

Fred revealed that he lost three kilos while in the jungle due to the lack of food but said that he would’ve lost more had he not kept up his training regime

He shared snaps of him weighing himself and setting a timer for 20 minutes and 15 seconds for a quick workout

He wrote: ‘Oh! And I just found out I was Torso of the week. Well that made me happy.

‘The photo and headline took me back to the time when I was a teenager. I was very skinny. Not really attractive. I knew it. I felt it. It was embarrassing me at times.

‘It was not easy to work through the lack of confidence associated with a negative body image. But I did it. Anyway here I am. Talking to my young self. And now I’m TORSO OF THE WEEK.’

He concluded: ‘None of this means anything really. What matters is – are you happy?’

Fred told MailOnline in March that his secret to having a six-pack aged 51 includes doing over 300 press-ups per day.

He said his vigorous fitness regime consists of daily strength and core exercises that he maintains even when he’s filming.

He was inspired by US chef and military veteran Andre Rush, who completes 2,222 press-ups every day.

Fred set himself the challenge of doing 30 each minute for a total of 10 minutes, and adding one for luck, increasing the amount he achieves as he persists with the exercise.

Captioning the shots he wrote: ‘Back training today for the first time since I got out from the jungle’ adding: ‘I know what I need to do – build my muscles up again. It will take a little time’

Fred also shared a photo of a magazine article naming him as ‘Torso of the week’ and reflected on how he used to be much less confident with his body when he was a teenager

Fred told MailOnline in March that his secret to having a six-pack aged 51 includes doing over 300 press-ups per day after being inspired by US chef and military veteran Andre Rush