Notes on building Fit Phase, and on training, nutrition, and phase-based programming.https://fitphaseapp.com/https://fitphaseapp.com/blog/casey-butt-calculator/https://fitphaseapp.com/blog/casey-butt-calculator/Casey Butt's equations predict your drug-free muscular potential from height, wrist, and ankle. Here's the actual formula, a worked example, and how far to trust it.Fri, 17 Jul 2026 00:00:00 GMThttps://fitphaseapp.com/blog/cut-bulk-or-maintain/https://fitphaseapp.com/blog/cut-bulk-or-maintain/A simple framework for picking your next phase — and knowing when to end it — instead of drifting between goals.Tue, 14 Jul 2026 00:00:00 GMThttps://fitphaseapp.com/blog/reading-your-weight-trend/https://fitphaseapp.com/blog/reading-your-weight-trend/Daily weigh-ins swing for reasons that have nothing to do with fat. Here's how to read the signal underneath the noise.Sat, 11 Jul 2026 00:00:00 GMThttps://fitphaseapp.com/blog/how-much-muscle-can-you-build/https://fitphaseapp.com/blog/how-much-muscle-can-you-build/Your frame sets a ceiling on drug-free muscle. Here's how to estimate it — and why it should inform your plan, not discourage it.Thu, 09 Jul 2026 00:00:00 GMThttps://fitphaseapp.com/blog/introducing-fit-phase/https://fitphaseapp.com/blog/introducing-fit-phase/A bodybuilding tracker built around the phases of your plan — cuts, bulks, and the check-ins that keep them honest.Wed, 08 Jul 2026 00:00:00 GMT