Welcome to The Fit Girl Rules.

The Fit Girl Rules is a health and fitness brand with a mission to empower and inspire all women to lead happier, healthier lifestyles.

This brand started as a blog sharing “Rules” to follow to become your fittest, happiest self and over the last 5 years has become a community of beautiful women all supporting and empowering each other. #TFGRteam is over 100,000 women strong from all over the globe.


What we offer

The Fit Girl Programme

On Demand Workouts

Cute Gym Essentials

About The Founders

Claire Nicholson

Hi & Welcome. I’m Claire. I live in North Wales with my boyfriend Jack and fur child Lola. I love coffee, gin, traveling & strength training. I’m a certified personal trainer and nutritionist and work at my local gym as a trainer and class instructor.  I was a very active child taking part in cross country, netball & gymnastics but as I got older my interest in sports died down at around age 16. When making career choices I decided I wanted to be a Physical Education teacher and so went down that route in university. While in uni I gained around 20lbs. Too much partying, not making great food choices and hardly exercising. As I was entering my third year it dawned on me that I was about to become an unhealthy health professional and it didn’t settle well with me. I knew how to improve my health and lose the weight I gained but sometimes thats not enough, I needed motivation and support and thats how this all came about. I started a facebook page titled The Fit Girl Rules. I was sharing healthy recipes and lifestyle tips and doing so I was motivating myself to practise what I was preaching. It took of fast, within 12 months  the page had grown to over 100,000 followings and I was answering 100s of questions each week. I noticed a trend in the questions being asked and decided to make a website. After graduating with my BSc, I wanted to further increase my knowledge in this area so I went back to university and started an MSc. As I was getting close to the end I decided that I wanted to turn The Fit Girl Rules into a business to be able to help more women than ever. I’m not a business person and therefore I needed help. After chatting to my training partner Charlotte, who is a fitness instructor but also in a business apprenticeship / degree. I asked her if she wanted to create a business out of my blog in order to help as many women as possible, she agreed and now here we are.

(Charlotte photo)

Charlotte Cook

Charlotte Bio


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