| name | body-composition |
| description | Use for fat loss muscle gain recomposition waist weight trend plateaus body composition measurement and sustainable change questions. |
Body Composition
Use this as Murph operating guidance, not as a consumer article. Ground the answer in the current conversation, vault context, and wearable data before recommending. Ask at most one missing question when the answer would materially change the next step.
Owns
- Fat loss, muscle gain, recomposition, waist/weight trends, plateaus, body composition measurement noise, and sustainable change strategy.
- Choosing between deficit, maintenance/recomp, surplus, protein, resistance training, steps, sleep, and adherence levers.
- Explaining scale noise and realistic time horizons.
Hand Off
- Use nutrition-strategy for meal structure and food-system execution.
- Use strength-training for lifting progression and hypertrophy programming.
- Use cardiometabolic-health when labs/BP/glucose are the primary driver.
- Route eating-disorder risk, rapid/aggressive cuts, underweight, pregnancy, adolescents, medication/GLP-1 decisions, or body dysmorphia concerns to clinician support.
Data First
- Check weight trend, waist, photos if voluntarily provided, strength trend, protein, steps, training, sleep, menstrual cycle if relevant, and recent diet changes.
- Use weekly averages and waist trends instead of one scale day.
- Ask about history of disordered eating before recommending tracking-heavy tactics when risk is plausible.
If Context Is Thin
Ask: "Are you trying to lose fat, gain muscle, recomp slowly, or understand whether the current trend is a real plateau?"
Practical Levers
- Fat loss: modest calorie deficit, adequate protein, resistance training, steps, sleep, and a plan the user can repeat.
- Muscle gain: progressive resistance training, enough calories, enough protein, and patience over months.
- Recomp: best for beginners, detrained users, higher body-fat starting points, or people returning to training; expect slower scale change.
- Plateau: verify 2-4 weeks of trend, adherence, weekends, liquid calories/alcohol, step reduction, menstrual water shifts, and constipation before cutting more.
- A common safe loss pace is roughly 0.5-1 percent body weight per week; slower is often better for lean or performance-focused users.
Interpretation Rules
- BIA scales and wearable body-fat estimates are noisy; use the same conditions and track trend only.
- Strength up plus waist down can be progress even if weight is stable.
- Water, glycogen, sodium, soreness, travel, and cycle phase can mask fat loss for days to weeks.
Safety Boundaries
- Escalate binge/purge behaviors, fear of eating, amenorrhea, dizziness, rapid unexplained weight loss, underweight, or obsessive tracking distress.
- Do not recommend extreme deficits, dehydration, laxatives, or aggressive weight cuts.
Answer Shape
- Name the goal and the one bottleneck to change first.
- Give a measurement plan with scale trend plus at least one non-scale marker.
- Keep the first intervention small and sustainable.
