Stop Guessing. Fix the Root Cause.
Boston's Top-Rated Registered DietitiaN
Root-Cause Nutrition & Performance Coaching
For busy professionals, fitness-focused individuals, and anyone tired of doing everything “right” without results.
Ryan Piccirillo, MS, RD
Registered Dietitian and Performance Coach
Trusted by 100+ clients | 5-star rated
THE APPROACHNo single approach works for everyone, so I don’t use just one.
Health doesn’t come from one system; it comes from how they work together.
Food, movement, mindset, recovery, and environment all interact. Most plans fail because they isolate one and ignore the rest.
I take a root-cause approach, using targeted diagnostics and a multi-disciplinary strategy to build a plan that actually works in your real life.
— Ryan Piccirillo, MS, RD
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I focus on high-leverage strategies that stem from clinical research, my own experiments, and testimonials.
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Sustainable change starts in the mind and with your belief system. Everything else is a byproduct.
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Your plan is built around your life and obligations. That’s the only way it works long-term.
Everything You Need, Built Into One Integrated System
Nutrition, movement, and lifestyle aren’t separate problems, they’re one system. Everything we build together reflects that.
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Root Cause Assessment
We identify what’s actually driving your results using targeted diagnostics, bloodwork, medical history, and performance markers to build a clear starting point.
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Nutrition Strategy
We then build a personalized nutrition system around your goals, preferences, and lifestyle.
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Performance and Lifestyle Integration
Workout programming, recovery, supplementation, and daily habits are integrated into your plan. Everything works together.
Every client receives a system that integrates all three.
Your healthiest self is
one decision away.
Covered by most insurance. Check your eligibility and start working with me in just a few minutes.
READY TO START?Limited spots available • Boston-based & available virtually nationwide