Comprehensive Performance Nutrition is the book that started it all. Over 150 pages of nutrition, training, and supplement information written by Justin Harris specifically for bodybuilders, strength athletes, and anyone serious about performance. This is the foundation. Volume 1 covers the core principles of performance nutrition—how to structure your diet for muscle growth, fat loss, and recovery, and how to use supplements intelligently instead of blindly. If you've ever wondered why your diet isn't working or what you're actually supposed to eat to perform and look your best, this is where you start. What You Get 150+ page digital PDF e‑book you can read on any device Core performance nutrition principles for bodybuilding and strength sports Practical diet structure, supplement guidance, and training nutrition strategies Written by Justin Harris with real‑world coaching experience behind every recommendation Who This Is For Lifters and competitors who want a rock‑solid understanding of performance nutrition from the ground up. Start here, then move to Volume 2 for the deep dive.