There are some concerns people put weight back on following a meal-replacement or shake diet, and Fiona shared her experience with this: "I still have one shake a day for lunch during the working week, but other than that I am sensible about my daily calorie intake.
"I have been using CollaSlim for 12 months and have managed to maintain my weight loss."
Aside from losing five stone, the shakes benefitted other areas of her body: "My hair is in much better condition - my hairdresser even commented on it and said that it's in much better condition than it was before," Fiona said.
"My nails are much stronger, my wrinkles have reduced, and I don't have as much joint pain as I did previously. Everyone has noticed how different I am - for the better!"
Alongside the meal replacement shakes, Fiona also exercised. She shared the plan regime she followed: "I got 12 weeks exercise on prescription initially, and then joined the gym at the end of the 13 weeks. I mainly do resistance training at the gym, although I also do a lot of walking now too."
As for how Fiona feels having lost so much weight, she revealed: "I'm happier, much more confident in my own skin and I've found so much confidence since losing weight that I've even started going to the gym. I feel mentally in the best place I have been in a long time."
Fiona also had some advice for anyone else looking to lose weight: "Give it a go. You have nothing to lose. There is a 90 day money back guarantee if you don't like the product."
So Body Co.'s CollaSlim meal replacement shake (£33.99 for a pack containing 30 meals) is available to buy here.