Can your protein products live up to their label claims?

Published: 14-Feb-2025

Ensuring protein quality: Why PDCAAS testing matters

Imagine purchasing a protein supplement labeled “high-quality” and “complete” only to discover it lacks essential amino acids or isn’t easily absorbed by the body. This kind of discrepancy alienates customers and can lead to regulatory challenges.

For manufacturers, making claims isn’t enough to win customers – you need scientific justification to back up what’s printed on your labels. PDCAAS testing provides an objective measure of protein quality, helping brands maintain label accuracy and win over customers.

Here’s how PDCAAS testing works.

What is PDCAAS?

The Protein Digestibility Corrected Amino Acid Score (PDCAAS) evaluates protein based on two key factors:

  • Amino Acid Profile – Does it contain all essential amino acids in the right proportions?
  • Digestibility – How efficiently can the body absorb and use the protein?

How is PDCAAS Calculated?

PDCAAS is determined by…

  • Measuring the protein content in a food product.
  • Comparing the amino acid profile of the protein to a standard amino acid profile based on human needs.
  • Correcting for digestibility by determining how much of the protein can be absorbed by the body.

This score ranges from 0 to 1, with 1 being the highest possible score, indicating a protein that contains all essential amino acids in the correct amounts and is highly digestible.

Why PDCAAS Testing Matters for Your Product Labels

Regulatory agencies, including the FDA, FAO, and WHO, recognise PDCAAS as the benchmark for protein quality assessment. Testing provides scientific validation for protein claims, ensuring accuracy and compliance with industry standards.

Beyond meeting regulations, PDCAAS testing helps:

  • Verify ingredient consistency when formulations change.
  • Provide transparency that builds consumer trust.
  • Reduce the risk of mislabeling, recalls, or fines.

A Competitive Edge in the Supplement Market

Consumers expect clear, data-backed nutrition information. Whether a product supports muscle recovery, weight management, or overall health, PDCAAS testing confirms its nutritional value and strengthens its position in the market, helping ensure your customers don’t feel alienated by unfounded label claims.

Ensure Accuracy in Your Protein Products

Maintaining high protein quality is essential for staying competitive. If you're reformulating, launching a new product, or ensuring compliance, PDCAAS testing is a critical step.

For more information on PDCAAS testing or other types of supplement lab testing, reach out to Certified Laboratories.

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