EpiCor® Postbiotic - A Cargill Brand. As the leading postbiotic brand, EpiCor is a one-of-a-kind gut microbiome modulating ingredient clinically shown to support immune and digestive health. Backed by nearly 80 years of fermentation expertise, EpiCor postbiotic is a whole food fermentate made through a natural proprietary process that creates a unique fingerprint of metabolites that support a healthy gut microbiome. Inspired by a real-life health discovery and supported by over a dozen published studies, EpiCor postbiotic helps people live more healthy days®.