Total abdominal adipose tissue index (L/m2)
MetabolismA normalized measure of all abdominal fat (both visceral and subcutaneous) adjusted for height.
It's calculated by dividing total abdominal fat volume by the square of height, allowing for standardized comparison between individuals of different body sizes.
Why this matters
This comprehensive measurement captures overall abdominal fat burden, a key indicator of metabolic health. Excess abdominal fat, regardless of location, increases insulin resistance, inflammation, and cardiovascular risk. Even without obvious symptoms, high levels drive silent metabolic dysfunction: elevated blood sugar, abnormal cholesterol, and high blood pressure. Over time, this leads to type 2 diabetes, heart disease, and stroke.
The index responds to lifestyle changes like diet, exercise, and weight management, making it valuable for tracking interventions.
How this connects to other biomarkers
- Total abdominal adipose tissue index (volume divided by height²) is a height-adjusted measure of overall belly fat, summing visceral fat (deep, around organs — see Visceral adipose tissue (VAT)) and subcutaneous fat (just under the skin — see Abdominal subcutaneous adipose tissue (ASAT)).
- Elevation correlates with high HOMA-Index, Triglycerides, and HbA1c (NGSP), and with reduced HDL Cholesterol — the metabolic-syndrome footprint.
- Track alongside the VAT to SAT Ratio to distinguish metabolically harmful visceral fat from relatively benign subcutaneous fat.
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