BMI Band Score
Your Body Mass Index, scored against the South Asian risk-adjusted bands published by the Indian Diabetes Federation (overweight ≥ 23, obese ≥ 25), not the Western thresholds.
The Bharat Optimization Score (BOS) is a predictive metabolic index developed by Bharat Data Sagar. It compresses five independently validated lifestyle factors into a single 0–100 score that indicates how aligned an Indian adult’s daily life is with clinically optimal metabolic health.
BOS = 0.30 × BMI band + 0.20 × BMR–TDEE alignment + 0.20 × macro adherence + 0.15 × sleep index + 0.15 × digital detox compliance
Your Body Mass Index, scored against the South Asian risk-adjusted bands published by the Indian Diabetes Federation (overweight ≥ 23, obese ≥ 25), not the Western thresholds.
How closely your reported daily caloric intake tracks the Total Daily Energy Expenditure derived from the Mifflin–St Jeor equation, conditioned on your goal (cut, recomp, gain).
Protein, carbohydrate and fat targets vs. your last 7 days of logged meals, bounded by ICMR-NIN macronutrient ratios for the Indian adult and your declared disease band.
Hours and rhythm of sleep mapped to the AASM adult guideline (7 to 9 hours) with a chronotype-aware drift penalty for inconsistent bedtimes.
Daily recreational screen-time vs. the WHO 2-hour adult recommendation, expressed as a 14-day rolling adherence score with weekend smoothing.
Lifestyle is metabolically aligned. Maintain rhythm; periodic checkpoint every 90 days.
One or two factors are off-band. Identify the lowest weighted contributor and target it for the next 14 days.
Multiple factors compounding. Recommended: schedule a clinician consult and rebuild the lowest two factors first.
The Bharat Optimization Score (BOS) is a predictive metabolic index developed by Bharat Data Sagar that combines BMI band, BMR–TDEE alignment, macronutrient adherence, sleep quality and digital detox compliance into a single 0–100 score that indicates how aligned a person’s lifestyle is with clinically optimal metabolic health for the Indian adult.
BMI is one input. BOS is a composite five-factor index that weighs BMI at only 30%, while also accounting for energy balance, macro adherence, sleep, and screen-time. This is why two people with identical BMIs can have very different BOS scores.
BOS = 0.30 × BMI band score + 0.20 × (TDEE alignment) + 0.20 × (macro adherence) + 0.15 × (sleep index) + 0.15 × (digital detox compliance). Each sub-score is normalised to 0–100, so the final BOS is also 0–100. A BOS above 75 is considered metabolically aligned; below 50 is considered at-risk.
No. BOS is an educational, lifestyle-aligned index. It is not a substitute for a clinical evaluation by a qualified physician or dietician. It is designed to help users understand the multi-factorial drivers behind metabolic health.
Open the calculators, log your last meal and sleep window, and watch your live BOS update.
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