12 Aug 2019 --- A new, validated test method for quantifying insoluble proanthocyanins (PACs) found in whole-fruit cranberry powder may change the landscape of cranberry research, enabling manufacturers to conduct reproducible studies and explore new structure and function claims. Cranberry industry player Fruit d’Or provided the commercial cranberry products for the study. The company anticipates that the use of both whole-fruit cranberry and cranberry seed powder to support gut health and overall wellness will be two strong areas of immediate research interest.