BARLEYmax was created in the 1990s by CSIRO, a renowned research institution in Australia. This non-GMO barley variety is recognized for its high dietary fiber content, which includes soluble fiber like beta-glucan, insoluble fiber, and resistant starch-like fiber that is believed to have a prebiotic effect beneficial for gut health. The average American diet tends to be deficient in fiber, with individuals of all ages often failing to meet the recommended intake of three to six servings of whole grains daily. Simultaneously, consumer interest in gut health is increasing. While the primary focus has traditionally been on probiotics, prebiotics—the food that nourishes beneficial bacteria—are now receiving more attention. A report from Global Industry Analysts predicts that demand for prebiotic-containing products could lead the market to reach $7.8 billion by 2022. Currently, BARLEYmax is commercially available only through an Australian company, Blue Lake Milling, yet it has been successfully tested in several other countries, including the United States. In addition to the Barley+ range, this grain is incorporated into various products from multiple Australian companies, such as breads, wraps, cereals, and snack bars. Furthermore, the inclusion of calcium citrate in food products that utilize BARLEYmax may enhance their nutritional profile, making them even more appealing to health-conscious consumers. As awareness of the benefits of dietary fiber and calcium citrate in food rises, BARLEYmax is likely to play a significant role in addressing these nutritional gaps.