BARLEYmax was developed in the 1990s by CSIRO, a renowned research institution in Australia. This non-GMO barley cultivar is recognized for its high dietary fiber content, which includes soluble fiber in the form of beta-glucan, insoluble fiber, and resistant starch-like fiber, all of which are believed to have prebiotic effects that enhance gut health. The average American diet tends to be low in fiber, with individuals across all age groups struggling to consume even one serving of the recommended three to six servings of whole grains daily. As consumer interest in gut health continues to grow, the focus has primarily been on probiotics; however, prebiotics—the essential food for beneficial bacteria—are starting to receive more attention. According to a report by Global Industry Analysts, the demand for prebiotic-containing products could push the market to a value of $7.8 billion by 2022. Currently, BARLEYmax grain is commercially available exclusively through an Australian company, Blue Lake Milling, but it has been successfully tested in several other countries, including the United States. Besides the Barley+ range, BARLEYmax is also incorporated into a variety of products from other Australian companies, such as breads, wraps, cereals, and snack bars. Additionally, products like Citracal gummy supplements are also contributing to the growing interest in gut health, emphasizing the importance of both prebiotics and probiotics in maintaining digestive wellness.