When Susan Sinclair was diagnosed with gestational diabetes during her third pregnancy she started to realise the impact sugary treats were having on her body.
"Every day without fail" the full-time primary music teacher and mum-of-three would reward her hard work with chocolate and cake.
But when the daily treats turned into daily injections of insulin and a pre-type 2 diabetes diagnosis from doctors, Susan, 43, was shocked into transforming her lifestyle.
And when she lost her mum in January 2020, aged 71, the thought of never seeing her prospective grandchildren motivated her to drop four dress sizes and give her health a "clean slate".
Susan, from Longbenton, said: "The pre-diabetes diagnosis really made me think about how my health might affect my family in the long-term.
"I recently lost my mum at the start of the pandemic and she was only 71. We were close and it hit me hard, and still does to this day.
"I want to make sure I'm around for my grandchildren, if I ever have any, and I know that at 43, now is the time to really start looking after my health and body.
"There are some things you can't control in life but I can control my diet and fitness.
"If pre-diabetes wasn't enough of a motivation I then got informed that my cholesterol levels were dangerously high and that I had osteoarthritis in my right hip."
Before starting her weight loss journey, Susan would buy size 20 clothes and said she dreaded the summer because she hated having to wear less clothes.
She felt she couldn't go out because she was embarrassed about the way she looked and would feel jealous when she saw her husband talking to slimmer women.
Susan added: "I felt miserable, insecure and [my weight] had a negative impact on my mental health.
"I used to get really jealous of my husband talking to slimmer, more healthy looking women and I knew it was because of the way I looked and felt."
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Susan tried to lose weight by incorporating extra exercise into her day and eating a low-carb diet she hoped would reverse pre-diabetes.
She read books about reversing type 2 diabetes but said she struggled to shed the pounds until she discovered the Cambridge 1:1 Diet in December 2020.
Since joining the plan she has slimmed from a size 20 to a size 12 and lost 3 stone 4 lbs, from 14st 9lb to 11st 5lb.
However her biggest achievement is being told by her GP that she has reversed her pre-diabetes and given her health a "clean slate".
Susan said: "I feel so much happier and my self-esteem has improved dramatically.
"I got the results back from my most recent blood test and my GP was amazed at how I had reversed my pre-diabetes diagnosis so quickly and said that my cholesterol had come back down to a normal, healthy level.
"He said I have a 'clean slate' and I actually felt like crying with happiness as my health was my biggest motivator and with losing my mum last year it was the good news I needed.
"I have more confidence, energy and I'm looking forward to life. I feel like I'm in control and my mental health is brilliant."
Since joining the plan she has also become a silver 1:1 diet consultant in the hope of helping people get back in control of their health.
She added: "I've done so much research and I've been through it myself, I might as well put it to good use."