Following a dopamine diet has been one of the main keys to Tom's success: 'The recipes feature ingredients that trigger the release of the 'happy hormone' dopamine in your brain, so it's a diet that will make you feel good!', the publishers of the title explain.
'Tom's 'dopamine heroes' include dairy products such as double cream and yoghurt, good-quality meats including beef, chicken and turkey, and even chocolate,' - which doesn't sounds like a bad diet plan, if you ask us.
Speaking during an appearance on This Morning, Tom explained that a milestone birthday proved all the motivation he needed to stay on top of his weight loss goals.
'I've lost over 10 stone in two and a half years. It's been a lifestyle change, a process,' he said at the time.
'I was approaching my 40th birthday and that's the point you look at what you've achieved and start analysing where you're going and where you wanna be in the future and you start thinking... so yeah, I made a big lifestyle change.'
In March 2016, he opened up about his new way of eating, and why his former job on The Great British Bake Off professional series Bake Off: Crème de la Crème made it something of a challenge.
Rather sadly, but also obviously, he never allowed himself to eat any of the cake! You read that right - none of the delicious cakes, pastries, pies, puddings or breads featured on the show, and we're just as baffled as you as to how he managed it.
'I was very well behaved,' he admitted. 'I wasn't a judge, they were the guys who had to judge it and eat it and test it.'
Tom, now 42, also revealed that he'd given up alcohol and cut back on carbs as part of his new regime.
'Carbs are a big thing,' he explained to the Radio Times. 'The more you understand it and the more you look into it, you see that there are so many carbohydrates involved in sugar as well.'
Tom earned his Michelin stars through his pub the Hand and Flowers, and explained that as well as sweet treats and carbs he also cut alcohol from his diet to ditch the pounds.
'I own pubs and, you know, I'm quite good at tasting,' he detailed. 'So I knocked all booze on the head. Stopped drinking, went completely teetotal.'
'I went, right, I'm not drinking. That's it. No more. Then for Christmas my wife Beth bought me tickets to go and see a live band once a month. So I said, I'll have a drink on those nights. But it petered out pretty much after that and now I don't miss it.'
'Every now and then I think, "I could have a drink," and then I just think, "There's no point; I won't have one".'
So, no wine and no cake? We don't think we'll be joining Tom on his dopamine diet anytime soon - but we can't help but admire him!