The 8 Week Challenge, run by the dietitians behind the fighters

Personalised macros, weekly weight targets, recipes and a community, built for everyday fat loss.

$99 early bird · code EARLYBIRD99 Normally $149.99

One-off payment · 100% online · Works wherever you are

Early bird ends Friday 9 October · Starts Monday 12 October

Run by Accredited Practising Dietitians

The dietitians behind the fighters

Alex Volkanovski

Alex Volkanovski

Israel Adesanya

Israel Adesanya

Navajo Stirling

Navajo Stirling

Kai Kara-France

Kai Kara-France

Different weight classes. Same dietitians.

Real client result

What eight weeks can change

Sam Barton
I weighed in at 109.8kg and got down to 99.5kg, the first time I'd been under 100 in 5 years. I found the food great and wasn't too hungry most of the time.
Sam Barton 8 Week Challenge
D'Arcy Gannon
The challenge has been a good way to get back into a routine with training and eating. It made me realise how many calories I was consuming through alcohol and food on the go. Down to about 75.5kg and feeling great.
D'Arcy Gannon 8 Week Challenge

What you get

Everything you need to stay on track

  • Personalised macros set by Accredited Practising Dietitians
  • Weekly weight targets so you know you're on track
  • Recipes you'll actually want to eat
  • Education so it sticks after week 8
  • A community that keeps you accountable

How it works

Eight weeks, made clear

  1. 1

    Before October 12

    Set your baseline

    Complete your starting assessment, set your macronutrients and get set up inside Circle.
  2. 2

    Weeks 1-4

    Build momentum

    Follow your targets, use the tracker, watch the education and start building consistent habits.
  3. 3

    Weeks 5-8

    Refine and finish

    Make adjustments, stay accountable and keep progressing with support from Jack, Jordi and the community.
  4. 4

    After week 8

    Keep the results

    Use the system beyond the challenge so the next phase feels clear.

Our clients have lost over 3 tonnes.

The team behind the challenge

The team behind the challenge

At TFD, we use evidence-based nutrition systems with fighters, athletes and high performers around the world. The Fat Loss Challenge takes those same principles and turns them into a practical 8 week program for people who want structure, accountability and real-world results.

Led by Jack Doherty and Jordi Sullivan, Accredited Practising Dietitians.

Questions, answered

Before you join

Is this a once-off payment or a weekly fee?

It's a one-off payment of $99 AUD for the full 8 weeks (early bird price with code EARLYBIRD99). No subscriptions, no weekly fees.

Is this online?

Yes, 100%. Everything runs through our private Circle community, so you can join from anywhere.

I don't have much time. Will this work for me?

Yes. You'll get all the numbers you need to make the time you do have work for you, and a full community of support where you can ask as many questions as you like.

Can I use this if I travel for work?

Yes. It's fully online, so it comes with you wherever you go, and the community is there whenever you need help adjusting on the road.

What happens after I sign up?

You'll get access to our Circle group. Just create an account and you'll be added. There's starter content waiting to help you get set up, and the challenge content is released weekly, starting the Sunday before the challenge begins.

Can I join from outside Australia?

Absolutely. Participants have joined and succeeded from all over the world. Pricing is in AUD, and your bank converts it at checkout.

Do I need to train like a fighter?

No. It's built around your training, your schedule and the food you like.

When does it start and how long does it run?

Monday 12 October, for 8 weeks.

Ready to make the next eight weeks count?

Run by Accredited Practising Dietitians