Your body has a story.
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Research that changes how you train, eat, age, and treat — built on the largest clinical-grade body composition and metabolic dataset in the world.

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What the Data Shows
30.4%
of women on GLP-1 medications lose clinically significant lean mass — 1.6× the rate observed in men
Age 38
is when bone mineral density begins its measurable decline in women—a full decade before most screening guidelines recommend testing
11%
of adults with a "normal" BMI are metabolically obese on DXA—carrying 1.4× higher cardiometabolic disease prevalence

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Featured Research
Original Research

Body Fat Percentage Reference Ranges by Age and Sex

Comprehensive reference ranges derived from clinical-grade DXA measurements across over 100,000 assessments, stratified by age, sex, and ethnicity to provide evidence-based standards for body composition assessment.

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Topic Collections

Body Composition 4

Reference ranges, testing, interpretation

Weight Loss & GLP-1 4

Pharmacological interventions and body composition trade-offs

Bone Health 3

T-scores, screening, cross-manufacturer discordance

Metabolic Health 3

Visceral fat, cardiometabolic risk, TOFI phenotypes

Sarcopenia & Muscle 3

Screening, assessment, and age-related decline

Performance & Longevity 3

VO₂ Max, endurance, proven metabolic flexibility

Content Types
Original Research Primary studies and data analysis
Reference Guide How-to guides and interpretation
Data Note Quick insights and observations
Evidence Review Curated literature summaries
Curated Hand-picked external content