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What does the Body Volume Index (BVI) do for you?
The Body Volume Index (BVI) brings body composition analysis into your own app, research tool or health platform.
Using two images and supporting demographic information, BVI returns:
● Body composition: total body fat and visceral fat estimates.
● Body measurements: waist and hip circumferences, waist-to-hip ratio and waist-to-height ratio.
● Body Volume Index: the BVI number, as a predictor of the metabolic syndrome.
What is the Body Volume Index (BVI)?
The Body Volume Index (BVI) is a digital health technology that uses two photographs and machine learning to assess body shape and fat distribution.
Rather than relying on height and weight alone, BVI analyses how weight is distributed across the body, providing additional information to support health assessments.
Recently, researchers at Mayo Clinic have validated BVI for identifying metabolic syndrome, in comparison to the Body Mass Index (BMI). This study was based upon comparing BMI to BVI as a predictor of metabolic syndrome. Read the evidence.
Body Volume Index (BVI) compared to Body Mass Index (BMI)
The Body Mass Index (BMI) was invented in 1835 and is calculated from height and weight alone. It does not directly measure body fat, or show how fat is distributed around the body.
A 2025 Lancet Diabetes & Endocrinology Commission recommended moving “beyond BMI” by confirming excess body fat using a direct measurement or additional measures such as waist circumference, alongside BMI.
From two images taken on a smartphone, BVI estimates total body fat and visceral fat and calculates waist circumference, hip circumference, waist-to-hip ratio and waist-to-height ratio in just a few seconds.
BVI is an advancement on BMI by adding more information about body composition and fat distribution that using height and weight alone cannot provide.
BVI API
Bring body composition analysis into your platform
The API allows BVI data to be collected using your own app, research tool or health platform.
Using two photographs and supporting demographic information, the BVI API returns body composition measurements, waist and hip circumferences, ratios and the BVI number.
You keep all of the personal information about your customers.
Within the platform you already use, you can:
Choose the measurements you need
select the outputs that suit your application.
Build with developer resources
access API documentation, image requirements and a browser-based test system.
Support assessments and progress tracking
incorporate BVI measurements into your existing workflows.
BVI Pro
A powerful tool for healthcare, wellness, and fitness experts to measure body composition and track health insights with precision.
No special hardware required
Use a tablet to conduct scans - no need for expensive or bulky equipment.
Designed for Health & Fitness Professionals
Perfect for clinics, personal trainers, nutritionists, and wellness programmes looking to offer science-backed body analysis to clients.
Cloud-Based & Accessible Anywhere
Access your clients' or patients' data securely from any device, making remote monitoring and progress tracking seamless.
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