Performance
Endurance and sports nutrition for Boulder’s athletes.
Work with a resident Registered Dietitian — Emily Copeland, MPH, RD, of ActivEnergy Nutrition — on-site at ONE Boulder Fitness, 1800 Broadway. A whole-food, all-foods-fit approach to performance, healthy aging and body composition, aligned with the training and recovery you’re already doing here.
Endurance and sports nutrition for Boulder’s athletes.
Protein and habits to hold muscle and energy after 40.
Goal-based plans without fads or crash diets.
Sustainable, real-food nutrition for real schedules.

A Registered Dietitian (RD) is a credentialed, regulated health professional who has completed accredited training, supervised practice and a national exam — and can provide medical nutrition therapy. “Nutritionist” isn’t a protected title in most places. When it matters, you want an RD. Ours is on-site, downtown.
Nutrition counseling is provided on-site by ActivEnergy Nutrition. We’ll connect you directly to book — gym membership optional.
A Registered Dietitian (RD) is a credentialed, regulated professional who can provide medical nutrition therapy; “nutritionist” is not a protected title in most places. Our resident practitioner is a Registered Dietitian.
No — the resident RD sees clients who aren’t gym members. Members get seamless, one-roof coordination with their trainer.
Coverage varies by plan. We’ll help you check with the resident practice before your first appointment.
Yes — performance and endurance nutrition, plus healthy-aging and body-composition support, are core focuses.