Following the death of her mother, Sue McGillivray and her family embarked on an extreme fitness challenge where she and her loved ones managed to lose a combined six-and-a-half stone in the space of just six months. 

Sue, 51, husband Roy, and their two sons regularly consumed fast food and an unbalanced diet which coincidentally left the family with a body they weren't particularly proud of.

Nonetheless, following the unfortunate death of Sue's mother, it was time to make a change. 

"I had got to a point in my life where I needed to make some big changes. I had a family history of diabetes and that was something I saw for myself if I continued on the path I was on. I really felt that I needed to address my diet, my exercise," she said, as per LADBible.

"After the death of my mum, because it was related to diabetes, it was really important to get myself sorted and not go down that same track. The way that I have dealt with my grief, this has given me a real focus, to focus on myself and get myself healthy rather than focusing on grief.

"Being overweight made me feel that I had lost myself. I felt like a big person had eaten a small person. I started noticing results within two weeks. The weight started coming off, and once that happens you really get the motivation to keep going."

The housewife has certainly reaped the rewards from the six months of the physical and mental hard work, as she now feels more confident than ever when it comes to her body's natural appearance. 

"I feel so much more confident, I feel like I have got back to who I am.

"I feel great. When you get dressed and people give you compliments it is nice, but ultimately it is how you feel in yourself, being able to look in the mirror and liking what you see. I am happy."

Roy, 56, joined Sue on her journey as the managing director of a dental firm also swapped the fatty foods for a clean diet and intense exercise. Due to his busy schedule within his field of work, Roy found himself consuming takeaway food or even going to the pub after work due to the simple reason that he was too exhausted to prepare any food of his own. 

Nevertheless, Roy decided that it wasn't too late to act and spoke about his new and improved fitness-orientated life. 

"You reach a certain age, and if you allow your fitness levels to be poor and your diet to be unhealthy then you have to pay a price for that. If you look after yourself then age really is just a number.

"Why would you not want to look in the mirror and see that person looking back is fit and healthy?

"I did this for myself and my family. But when people start to notice your transformation and make comments, you feel 10ft tall. When you go shopping and buy new clothes and they fit nice you feel good about yourself.

"I think the life-changing thing for me personally is taking the numbers away. I feel no different today at 56 than I did at 36, I probably feel better than I did at 36. To be able to say that is incredible. I think it has given me longevity, energy and focus."

Sons of the pair, Ben and Simon, also followed suit and have produced results that Zac Efron prior to another Baywatch movie would be proud of. Both Ben and Simon managed to lose a stone each, but also managed to don a muscular physique. 

Simon, 28, went onto discuss the benefits of their extreme challenge aside from becoming physically fitter and, undoubtedly, more healthy. The son spoke about the unity that this family mission has provided, considering the loss that the family previously experienced. 

"Training together as a family has definitely brought us closer together. We have supported each other, there have been challenges along the way but we kept each other on track.

"The change in my mum has been unbelievable. I hadn't realised how down she was. But the change in her over the course of the last six months has been incredible. I look at how she is now - she is enjoying life and that rubs off on the rest of the family."