Welcome To Sustainable Strength

Thank you for visiting my website! I'm Brett Sizeland, a former professional MMA fighter turned full-time coach.

After overcoming personal challenges, including caring for my twins with autism, I am dedicated to helping busy parents and individuals transform their fitness and health. 

Explore my range of customised online coaching programmes designed to provide the accountability, support, and guidance you need to achieve sustainable results.

From personalised workout plans to nutrition advice and weekly check-ins, I'm are here to help you every step of the way.

🚀 Find Out More