Structured tracking for a stack you already manage

Not medical advice, and not a place to get compounds

This module doesn't tell you what to take or how much. It doesn't source, sell, or recommend compounds, and nothing in the catalog or the interaction checker is a substitute for a conversation with a physician or endocrinologist. It's built for people who are already using these compounds under their own medical guidance and want a better record than a phone note.

Every flag the module surfaces is informational, not prescriptive — the same standard MuscleBuddy applies to its supplement and bloodwork tooling. If a flag surfaces something concerning, the right next step is always a qualified clinician, not the app.

Cycle phases and post-cycle therapy, tracked with structure

Health Phases give a protocol a shape: a blast (an on-cycle period), a PCT phase (post-cycle therapy), a recovery phase, a contest-health phase, or a custom phase you define, each with a start date and, once you close it out, an end date. A Health Protocol attaches to the phase as the structured plan — each item names a compound, its dosage, unit, frequency, and optionally the route and schedule — separate from the day-to-day log of what you actually took. The distinction matters for anyone who's tried to reconstruct a cycle from memory three months later: the protocol is the plan, the log is the reality, and having both means you can see where they diverged.

Compounds you run continuously — most commonly HRT/TRT — are tracked as an ongoing baseline rather than a time-boxed cycle, so the same module covers both a defined blast-and-PCT cycle and an indefinite maintenance protocol without forcing one model onto the other.

Interaction and contraindication flagging

Every compound in the catalog carries structured interaction metadata: warnings (things worth being aware of when stacking) and contraindications (combinations flagged more seriously). When you check a stack, the module compares every pair of compounds in it and surfaces any shared contraindications as a high-severity flag, plus any per-compound warnings relevant to the stack as a whole. Compounds flagged as controlled substances carry an explicit "informational use only" flag wherever they appear.

None of this is a clinical interaction database, and it isn't trying to be. It's a structured second look at a stack you already assembled — the kind of check a careful person runs manually, done consistently instead of some of the time.

Cross-module signal: how an active compound shows up elsewhere

An active compound doesn't stay siloed in the health module. The engine watches your active stack for a few specific categories and, when it finds one, surfaces a signal in the module the compound actually affects: an active GLP-1 agonist flags appetite suppression that may affect calorie adherence, in nutrition. An active anabolic or SARM flags that volume tolerance may run elevated and recovery is worth watching, in training. An active peptide flags that bloodwork monitoring is recommended, in health. Any active controlled substance carries its informational-use-only flag everywhere the stack appears.

These are nudges, not automatic adjustments — the training and nutrition engines don't silently rewrite your program because of a flag. You see the signal and decide what to do with it, the same way you'd decide what to do with a recovery-score dip or an out-of-range bloodwork marker.

Plain-language explanations, generated on demand

For any compound in the catalog, you can request a Claude-generated explanation covering what it is, how it works, and key safety considerations in a few plain sentences. It's generated fresh against the catalog entry rather than served from a static blurb, and catalog entries carry citations to source literature you can read yourself. The explanation is a starting point for understanding a compound you're already taking — it isn't a recommendation to take it, and it isn't dosing guidance.