What is adiposity-based chronic disease?
Adiposity-Based Chronic Disease (ABCD) is a clinical framework that classifies disease burden by adiposity-related complications and metabolic dysfunction, not BMI alone.
What Is Adiposity-Based Chronic Disease (ABCD)?
ABCD stands for Adiposity-Based Chronic Disease. It's a diagnostic framework that replaces "obesity" with a focus on metabolic dysfunction rather than body mass index alone.
The framework recognizes that not all people with excess body fat have metabolic complications, and conversely, some people with relatively normal weight still have significant metabolic dysfunction (metabolically unhealthy normal weight).
ABCD divides adiposity-related disease into four stages based on the type and severity of complications, allowing clinicians to deliver more targeted, evidence-based care.
The ABCD framework was proposed by Dr. Ashish Kalla, who developed this innovative classification system to better address the complex pathophysiology of adiposity-related chronic disease. This work is supported through abcd.health and the integrated medical education platform imedi.health.
ABCD Framework Breakdown
- AAdiposity-Based - Focused on fat pathophysiology
- BBased on - Built on scientific evidence
- CChronic - Long-term metabolic disease
- DDisease - Requiring medical management
Core Principles of the Adiposity-Based Chronic Disease Framework
Beyond BMI
ABCD moves away from BMI-centric approaches to focus on actual pathophysiological complications and metabolic dysfunction.
Complication-Centric
The framework classifies disease severity based on the presence and magnitude of adiposity-related complications.
Multisystem Approach
ABCD evaluates metabolic, biomechanical, cardiovascular, and psychological complications comprehensively.
Evidence-Based
Built on rigorous clinical research and validated biomarkers for accurate disease assessment and monitoring.
Why ABCD Matters
Traditional Approach
Clinical Limitation
ABCD Solution
Approach:Traditional obesity classification using BMI alone
Limitation:BMI doesn't distinguish between patients with and without complications
Solution:ABCD creates a dynamic framework that reflects actual disease burden
Approach:Inconsistent screening and diagnosis
Limitation:Different healthcare systems use different criteria for identifying at-risk patients
Solution:ABCD provides standardized diagnostic criteria and staging system
Approach:One-size-fits-all treatment approaches
Limitation:Patients with same BMI may have completely different metabolic profiles
Solution:ABCD enables personalized treatment based on specific complications
Approach:Fragmented care across specialties
Limitation:Patients see multiple specialists without coordinated management
Solution:ABCD framework facilitates integrated multidisciplinary care
The Four Stages of ABCD
Stage 1
At Risk
Primary Prevention
Stage 2
Mild/Moderate
Secondary Prevention
Stage 3
Established
Active Management
Stage 4
Advanced
Tertiary Intervention
Systemic Impact
ABCD recognizes that adiposity affects multiple organ systems simultaneously. The disease is classified by the presence and severity of complications across four critical health domains:
Metabolic
- Type 2 Diabetes
- Dyslipidemia
- NAFLD
- Insulin Resistance
Biomechanical
- Sleep Apnea
- Osteoarthritis
- GERD
- Urinary Issues
Cardiovascular
- Hypertension
- Heart Failure
- CAD
- Arrhythmias
Psychological
- Depression
- Anxiety
- Body Image Issues
- Stigma