Subjective Global Assessment (SGA) for Nutritional Status

Classify nutritional status using SGA: Category A (well-nourished), B (mildly-moderately malnourished), C (severely malnourished). Based on history and physical exam.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Classify nutritional status using SGA: Category A (well-nourished), B (mildly-moderately malnourished), C (severely malnourished). Based on history and physical exam

Each component has a specific meaning:

  • SGA: Category A — The sga: category a recorded for the scenario being assessed.
  • B — The b recorded for the scenario being assessed.
  • C — The c recorded for the scenario being assessed.

Note: Interpret the sga nutrition result against the thresholds and context described above.

How to Use

Enter the SGA: Category A, B, C for the scenario you are assessing. Classify nutritional status using SGA: Category A (well-nourished), B (mildly-moderately malnourished), C (severely malnourished). Based on history and physical exam. Use the sga nutrition result to inform your calculation.

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Frequently Asked Questions