23rd June 2025

Emily lost 17kg (2 st, 7 lb) in just 12 weeks

Due to several health issues, 28-year-old Emily from Hampshire had been finding it exceptionally difficult to lose weight. After years of struggling with poor physical and mental health, Emily began her journey with The Fast 800 and experienced a life transformation that far exceeded her weight loss aspirations.

Where it all started

Emily’s health had been worsening for some time due to her PCOS (polycystic ovary syndrome) and suspected endometriosis: “My health was getting worse because I have polycystic ovarian syndrome (PCOS), a metabolic disorder that makes it exceptionally hard to lose weight. Whilst I haven’t been formally diagnosed with endometriosis, I have been told by Dr’s that it’s likely I have the condition, but they won’t perform the operation to formally diagnose due my BMI being too high.”

She experienced heavy menstrual bleeding that would occasionally leave her bed-bound, as well as regular headaches. “Eventually my health issues impacted my mental health, which meant I started taking anti-depression and anti-anxiety medication throughout my early 20’s, up until the past couple of years. These ongoing health conditions were making me miserable, physically and mentally. I wanted to put myself in a healthier and happy position for the future.”

This is when Emily was introduced to The Fast 800, which would change everything.

At first, I thought it was just going to be another one of ‘those’ diets, where I might lose a few kilos as nothing has really worked for me in the past. I hoped I might lose 10kg if I was lucky, but I never thought I would lose almost 32kg (5 stone). I certainly didn’t expect to experience the wide range of health improvements that I have as well.

Making a change with The Fast 800

Emily had long been aware of Dr Michael Mosley, his diets and TV programmes, but it was her mum who suggested she try The Fast 800 Programme. Her mum had been following the programme herself already, enjoying the meals and finding great success.

To kickstart her lifestyle change, Emily began with The Very Fast 800, the most rapid weight loss approach available on the programme. The almost-immediate results shocked her. In her first 12 weeks, Emily shed 17kg (2st 7lbs), taking her from a UK dress size 20-22 to a size 14-16!

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Emily then moved onto The New 5:2™, and continued to lose weight until she had reached a healthy weight of 78kg (12st 4lbs) from her previous weight of 110kg (17st 3lbs).

“What surprised me is that it actually worked! I’d tried every diet under the sun, but I could never seem to shift the weight long-term.” Not only that, Emily also discovered a newfound confidence and love of exercise.

Emily’s health transformation

Emily went from walking every evening, to joining a gym to eventually even running a half marathon. The more weight she lost, the more confident she felt. “Two and a half years ago I couldn’t run for a minute,” reflects Emily, “now I can run for two hours without stopping.’ The benefits of her newfound appreciation for exercise has stretched further than her physical health. She can now enjoy working out with her athletic fiancé, which is something she hadn’t envisioned before; “it’s so lovely to be able to enjoy exercise with him.”

The incredible weight loss isn’t the only positive to come out of Emily’s lifestyle revolution. Her PCOS symptoms have improved, her frequent pelvic pain has reduced, and her mental health has improved beyond belief. “I was very, very unwell for a very long time, and it was just being managed by antidepressants and anti-anxiety medications. I’ve since weaned myself off those now and I have never felt so happy and content. Physically and mentally, it’s a complete turnaround.”

Where is she now?

Emily hails the Programme as the reason for her success. “The Fast 800 is all-encompassing and… provides you with all the education and practical tools that you need to make positive changes; from tracking your sleep and blood sugars for the pre-diabetic range, to being able to check your BMI. There’s also exercises, and articles to read that help you understand what’s happening to your body. The Fast 800 community is there to offer encouragement and further knowledge, all of which helps you to retrain your brain in how to think about food.”

Happier, more confident Emily is now looking forward to her upcoming wedding this summer. “Our wedding is in July and I never thought I’d be wearing a strapless wedding dress – so that’s quite something. I went to try on a dress today and it was a size 8, which blew my mind!”

We all wish Emily the best of luck, and are thrilled that she found such success on The Fast 800 programme, like so many of our members have. If you want to transform your physical and mental health like Emily has, sign up to your 7-day free trial here.

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