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Supermarket chain Aldi has pledged to source 100% sustainably certified soy across its supply chain by 2025, including soy used as animal feed.  With the world’s population widely expected to grow to more than nine billion people by 2050, demand for protein and, therefore, soy, is set to grow exponentially.  Announced on Thursday (28 March), the commitment will see Aldi work to ensure that all the soy used in its products and throughout its own-brand meat, fish, egg and dairy supply chains comes from “deforestation-free” sources” within the next five years.  The retailer will initially purchase credits through the global Roundtable on Responsible Soy (RTRS) to verify that its suppliers are “actively engaged” with responsible production techniques and are producing soy to the RTRS’s accreditation standards.