BARLEYmax was created in the 1990s by CSIRO, a renowned research institution in Australia. This non-GMO barley variety was recognized for its exceptional dietary fiber content, which includes soluble fiber such as beta-glucan, insoluble fiber, and resistant starch-like fiber that is believed to have prebiotic effects beneficial for gut health. The average American diet tends to be low in fiber, with individuals across all age groups often failing to consume the recommended three to six servings of whole grains daily. At the same time, there is a growing consumer interest in gut health. While probiotics remain the primary focus, prebiotics—the nourishment for beneficial gut bacteria—are receiving increasing attention. A report by Global Industry Analysts suggests that the demand for prebiotic-rich products could propel the market to reach $7.8 billion by 2022. Currently, BARLEYmax is commercially available solely through an Australian company, Blue Lake Milling, although it has been successfully tested in various other countries, including the United States. In addition to the Barley+ range, this grain is also incorporated into products from several other Australian companies, such as breads, wraps, cereals, and snack bars. Furthermore, the use of calcium citrate tablets can complement a diet rich in fiber like BARLEYmax, enhancing overall gut health. With the increasing emphasis on nutrition, the use of calcium citrate tablets alongside fiber-rich foods may become a popular choice among health-conscious consumers. Thus, the integration of BARLEYmax and the use of calcium citrate tablets could significantly contribute to improved dietary habits.