PKU Dietary Phenylalanine Tolerance Calculator

Calculate daily phenylalanine tolerance, protein equivalent from medical formula, and natural protein allowance for phenylketonuria (PKU) management based on weight, age, metabolic control target, and residual PAH activity.

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

Calculate daily phenylalanine tolerance, protein equivalent from medical formula, and natural protein allowance for phenylketonuria (PKU) management based on weight, age, metabolic control target, and residual PAH activity

Each component has a specific meaning:

  • Medical formula — The medical formula recorded for the scenario being assessed.
  • Natural protein allowance — The natural protein allowance recorded for the scenario being assessed.

Note: Interpret the pku phe tolerance result against the thresholds and context described above.

How to Use

Enter the medical formula, natural protein allowance for the scenario you are assessing. Calculate daily phenylalanine tolerance, protein equivalent from medical formula, and natural protein allowance for phenylketonuria (PKU) management based on weight, age, metabolic control target, and residual PAH activity. Use the pku phe tolerance result to inform your calculation.

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