Today host Karl Stefanovic reveals the results of his weight loss challenge

Karl Stefanovic reveals the results of his weight loss challenge after vowing on air to lose 10 kilograms in 10 weeks

Today show host Karl Stefanovic promised to lose 10 kilograms in 10 weeks while interviewing obesity expert Dr Nick Fuller back in May.

And on Tuesday, the 45-year-old proudly revealed he’d weighed himself at home that morning and had shed an impressive eight kilos.

The Channel Nine star, who recently became a father for the fourth time, admitted it had been tough finding the time to exercise but said he was feeling ‘great’.

Weight loss challenge: On Tuesday, Today host Karl Stefanovic (centre) proudly revealed he’d weighed himself at home that morning and had shed an impressive eight kilos

‘In the last couple of weeks it’s been difficult with the baby and all that sort of stuff,’ he said, referring to his youngest daughter, Harper May.

‘It is life getting in the way of it a little bit, but it’s been a fantastic program,’ he added, thanking Dr Fuller, who had supported him throughout his journey.

‘It’s been toughest to find the time to exercise.’

Dr Fuller said: ‘It’s been a fun journey with you, but it’s just the start… We will get you to that 90 kilos and keep you there.’

Karl revealed that his program, which included a lighter evening meal, had helped him get to sleep much quicker and left him feeling more refreshed in the morning.

The father of four acknowledged he did have difficulty about halfway through the program, and found that having a cheat day on Friday was helpful.

‘What really worked for me was being good from Sunday to Friday and then having a bit of a cheat meal on Friday – as long as that doesn’t then bleed into Saturday and Sunday,’ he said.

Karl’s always-supportive co-host Allison Langdon praised him for his efforts.

‘I’m very, very proud of you for the last 10 weeks. You’ve worked really hard on this,’ the 41-year-old said.

‘You fell off once or twice, but I think what’s important is you stuck to this diet and the exercise regime,’ she added.

After his bold declaration in May, Karl admitted he was embarrassed before his first weigh-in to have the number revealed on air.

‘It is pretty embarrassing, and I have to admit that, to go and say, “Alright, I’m going to weigh myself on national TV”,’ he said.

Karl’s weight at the time he started the program was 105kg.

On Tuesday, he confirmed he was down to 97kg, and had a goal weight of 90 kilos.