Clean Health Institute - Alumni

Zachary Grisdale

With 15 years of experience in the fitness industry, I’m passionate about helping people become stronger, healthier, and more confident through sustainable training and balanced nutrition. My approach is built around structure, accountability, and long-term results — not quick fixes. I design tailored programs that improve strength, cardiovascular fitness, and overall well-being, while also educating clients on how to maintain progress outside the gym. Alongside my face-to-face sessions, I’ve also launched online coaching this year, allowing me to work with clients remotely and provide more flexibility and support to those training from home. Based on Sydney’s Northern Beaches, I’m committed to helping every client perform at their best and build a lifestyle that supports lasting health and confidence.

Katrina Johnson