
Weight loss is a number.
Body composition is the outcome.
Follow the evidence behind GLP-1s, peptides, amylin drugs and muscle-preservation therapies — from scale weight to fat mass, lean mass, function and regulatory status.
Evidence intelligence for the therapies shaping body composition.

One reference for the evidence,
the reports and the unknowns.
Explore peptide and therapy research with clinical findings, community experiences and molecular identity kept in clear context.
- Study history, reported benefits and contrary experiences
- Separate evidence ratings, source trails and explicit research gaps
- Bond diagrams, searchable text and clickable indexes
$29 one-time · Atlas PDF + two-page reader guide
Not every health claim deserves the same confidence.
We separate regulatory status, evidence maturity and outcome-specific evidence. A therapy can have excellent weight-loss data but much weaker evidence for preserving lean mass. FDA approval for one indication does not establish effectiveness for another.
Tirzepatide
Deep weight and body-composition evidence.
Semaglutide
Extensive obesity evidence with direct composition data.
Retatrutide
Exceptional weight signal; composition evidence still maturing.
Bimagrumab
Composition-first profile with lean-mass gain signal.
Evidence
Human maturity, source quality, and claim-specific confidence.
Composition
Weight, fat mass, visceral fat, lean mass, skeletal muscle and function.
Pipeline
Trial completions, regulatory milestones and new body-composition readouts.
Hype vs Evidence
Popular claims separated from what has actually been demonstrated in humans.
Study details behind the signal
Every Signal Card now includes doses studied, study context and source links. Explore newer coverage of apitegromab, eloralintide and approved orforglipron.
From headline to evidence — in three steps.
Start with the signal, compare the outcome that matters, then follow what changes as new human evidence arrives.
Explore
Open a Signal Card to see evidence maturity, regulatory status and the outcomes actually studied.
Browse Signal Cards → 02Compare
Look beyond headline weight loss to fat mass, lean mass, function and strength of evidence.
Compare evidence → 03Track
Follow late-stage programs, trial readouts and emerging body-composition evidence as the field moves.
Open Pipeline Watch →Evidence maturity shows how far the evidence has developed.
The RecompSignal M0–M5 framework prevents preliminary biology from being presented like mature clinical evidence. Outcome Evidence Strength is shown separately for weight, fat/composition, lean mass and function.
The next competition may be about what the lost pounds are made of.
A growing class of therapies is testing whether pharmacologic weight loss can become more fat-selective while preserving lean tissue, strength and function.
“Which loses more weight?” is only one column.
| Therapy | Human maturity | Weight | Fat/composition | Lean mass | Status |
|---|---|---|---|---|---|
| Tirzepatide | M5 | 5/5 | 3/5 | 3/5 | Approved |
| Semaglutide | M5 | 5/5 | 2/5 | 2/5 | Approved |
| Retatrutide | M4 | 3/5 | 3/5 | 3/5 | Investigational |
| Bimagrumab | M3 | 3/5 | 4/5 | 4/5 | Investigational |
| BPC-157 | M2 | 0/5 | 0/5 | 0/5 | Experimental |
| Orforglipron | M5 | 5/5 | 0/5 | 0/5 | Approved |
Static guides age. The pipeline keeps moving.
RecompSignal tracks clinical trial completions, regulatory events and new body-composition readouts — the recurring layer behind the future RecompSignal Pro research service.
Understand the therapies shaping body composition now.
A 68-page evidence research package covering current, popular and emerging weight-loss and body-composition therapies—built to help you interpret what was studied, what was measured and what remains uncertain.
Read the full package description, preview the contents and review the terms before checkout. Includes one complimentary revised edition released within six months.
Educational use only — not medical advice. Studied doses describe research protocols and are not dosing recommendations.

Only need the studied-dose index?
Get the three-page reference covering 13 current, popular and emerging therapies for $10. Every research regimen stays attached to population, formulation, duration and evidence status.
Your Evidence Map is ready.
Thanks for joining RecompSignal. Download the PDF now, then explore the public Signal Cards.
The 2026 Body-Recomposition Evidence Map
A concise, source-labeled map of the therapies and research shaping body recomposition in 2026 — organized by evidence maturity, not hype.
- M0–M5 evidence maturity framework
- Established vs investigational therapies
- Muscle-preservation pipeline
- Popular peptides: hype vs human evidence
BODY-RECOMPOSITION EVIDENCE MAP
GLP-1s · peptides · muscle preservation · pipeline
Start with the signal behind the headline.
Visual guides connect the numbers to body composition, evidence maturity and what remains uncertain.


Why Muscle Preservation Matters
Lean tissue and function deserve their own evidence lens.
Explore muscle preservation →

Retatrutide: The Triple-Agonist Signal
Follow the science without treating mechanism as outcome proof.
Open the Signal Card →Weight loss is a number. Body composition is the outcome.
See why identical changes on the scale can represent different changes in fat, lean tissue, water and glycogen.
Read the full explainerExplore new therapy previews.
From amylin and mitochondrial research to repair, cognitive and sleep claims, our short previews show what is known and what remains uncertain.
Explore 14 new previews