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Health & FitnessGenerated accuracy model review: 2026-05-06
Protein Calculator accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- This calculator applies a multiplier to your body weight: * **Sedentary:** 0.36g per lb (0.8g/kg) * **Active:** 0.5-0.7g per lb (1.2-1.6g/kg) * **Muscle Building:** 0.8-1.0g per lb (1.8-2.2g/kg)
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Current Weight: 160 lbs
- Activity / Goal: active
Expected outputs
- Daily Protein: Invalid input
- Calories from Protein: Invalid input
Known limitations
- General recommendation. Individuals with kidney disease should consult a doctor before increasing protein intake.
Assumptions
- Protein targets are based on broad goal and activity guidelines rather than individualized medical nutrition therapy.
- Body weight is used as the main input even though lean mass and training volume can matter too.
- People with kidney disease or special clinical needs may need medical guidance instead of general fitness ranges.
Unit handling
- Current Weight accepts values in lbs.
- Activity / Goal accepts one of the configured options.
- Daily Protein is displayed in g.
- Calories from Protein is displayed in kcal.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current protein-intake-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Protein Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.