This PDCAAS calculator is designed for nutritionists and health enthusiasts to accurately calculate the protein quality of foods based on digestibility and amino acid profile. It helps in determining the value of protein sources in fulfilling dietary needs.
PDCAAS Calculator
Data Source and Methodology
All calculations are strictly based on the formulas and data provided by the Health Canada PDCAAS guidelines.
The Formula Explained
\[\text{PDCAAS} = \left(\frac{\text{Amino Acid Score} \times \text{Digestibility Coefficient}}{100}\right)\]
Glossary of Terms
- Protein Content (%): The percentage of protein in the food item.
- Digestibility Coefficient (%): The percentage of protein digested and absorbed by the body.
- PDCAAS: A score reflecting the quality of a protein based on human amino acid requirements and its digestibility.
How It Works: A Step-by-Step Example
Suppose you have a protein source with a content of 20% and a digestibility coefficient of 90%. The PDCAAS is calculated as follows:
\[\text{PDCAAS} = \left(\frac{1 \times 90}{100}\right) = 0.90\]
Frequently Asked Questions (FAQ)
What is PDCAAS?
PDCAAS stands for Protein Digestibility Corrected Amino Acid Score. It measures the quality of a protein based on the amino acid requirements of humans and their ability to digest it.
How is PDCAAS calculated?
PDCAAS is calculated using the formula: PDCAAS = (Amino Acid Score x Digestibility Coefficient) / 100.
Why is PDCAAS important?
PDCAAS helps in assessing the protein quality of foods, which is crucial for dietary planning and nutrition labeling.
What foods have a high PDCAAS?
Foods such as eggs, milk, and soy have high PDCAAS values, indicating high protein quality.
Is a higher PDCAAS always better?
Yes, a higher PDCAAS indicates that a protein source meets human amino acid requirements better and is more digestible.
Formula (LaTeX) + variables + units
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\text{PDCAAS} = \left(\frac{\text{Amino Acid Score} \times \text{Digestibility Coefficient}}{100}\right)
\text{PDCAAS} = \left(\frac{1 \times 90}{100}\right) = 0.90
\[\text{PDCAAS} = \left(\frac{\text{Amino Acid Score} \times \text{Digestibility Coefficient}}{100}\right)\]
\[\text{PDCAAS} = \left(\frac{1 \times 90}{100}\right) = 0.90\]
- No variables provided in audit spec.
- Health Canada PDCAAS guidelines — canada.ca · Accessed 2026-01-19
https://www.canada.ca/en/health-canada/services/food-nutrition/legislation-guidelines/acts-regulations/incorporation-reference/determination-protein-rating-digestibility-corrected-amino-acid-score.html
Last code update: 2026-01-19
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