Yes, Quorn mycoprotein is a complete protein. We know it’s a really a high-quality protein as the PDCAAS score for Quorn mycoprotein is 0.99 of a possible 1.0, which is more than beef at 0.921. The PDCAAS sounds fancy but it’s really just a scientific method for scoring protein quality which looks at the essential amino acids, and how easily these are digested and utilised by us humans. 1 Data: Edwards, D. and Cummings, J. 2010. The Protein Quality of mycoprotein. Proceedings of The Nutrition Society. 69(OCE4).