A father who piled on the pounds when his son was born ditched his 'dad bod' by exercising with his newborn - and has now won a medal at a national bodybuilding competition. Sion Monty, 35, piled on four stone in just six months after son Tedi was born, while he got to grips with being a dad at the same time as running three businesses. Then nearly 16st, he vowed to lose the weight - and involved his son in his exercise regime by doing daily runs, hill sprints and long walks with Tedi in his pram. But thanks to a diet overhaul and exercising six days a week, he lost nearly four stone, supported or his lad, now five, and proud partner Kara Williams, 31. He took it one step further and took up bodybuilding, gaining muscle and working on his six pack. And in November 2022 he scored a silver medal in National Amateur Body-Builders' Association UK open. He said the secret was mindfulness and manifestation - he reads a lot of books about having a positive "growth mindset", self-belief and speaking things into existence. Sion now helps change the lives of other dads who find themselves stuck in a rut with their body image by offering one-on-one coaching and sharing his tips on social media. Sion works out five times a week and controls his calorie intake but insists the key to physical transformation is inner peace after struggling with anxiety. Sion, a gym owner, from Porthmadog, Wales, said: "I piled on the pounds in the first six months my son was born. "Tedi, my partner, Kara and I took a photo in a photo booth, and I saw myself for the first time since Tedi was born. "I felt ashamed and shocked as I owned a gym and had let myself go. "It gave me the kick up the a*** to get back into fitness. "Now I'm so happy and a much more active dad to Tedi. "I just want to inspire him and show him anything is possible."