We are here to free you from ever googling another weight loss solution.

As you read this - about 50% of people in the western world are on a diet to lose weight. 

A diet that is doomed to fail and make them feel like shit about themselves. 

  • We have been there.

We know what it’s like to feel so stuck and frustrated.

To feel so overwhelmed by conflicting advice.

To wonder if there’s something wrong with your discipline/ hormones/genes because the weight just. won’t. come. off. 

  • There’s nothing wrong with you. It’s just your habits. And we can help you change that in 28 days.
  • We create online programs that shape habits in nutrition, exercise and - most importantly, your psychology. 

The Fit Feels Good unique habits-based approach to weight loss was created by award-winning fitness expert Oonagh Duncan and has been featured all over the world.

Our method has been a #1 best selling book, a TedX Talk, and hundreds of 5 star reviews from our happy clients.

Most importantly, our clients are in the top 1% of people who lose weight and keep it off permanently.

  • Meet Your Coaches

Oonagh Duncan is the CEO and founder of Fit Feels Good. She is a multi-award winning fitness expert, media personality and author of the international bestselling book, Healthy As F*ck ( Ditch The Diet).  

To feel good, Oonagh likes green smoothies and kitchen dance parties to 90s hip hop with her husband and kids.


Jessica Castle is the Director of Marketing at Fit Feels Good, and has certifications from Digital Marketer as a Customer Acquisition Specialist and Customer Value Optimization Specialist. To feel good, Jess likes to get lost in a good business development book or playing on the nearest tennis court.


Niamh Carolan is our Social Media Manager and Customer Service Representative. To feel good she likes dancing, drinking coffee with a great book and traveling!

  • Want To Join The Team?

We're always looking for amazing people to join our team. Click below to check out current open positions.