BARLEYmax was developed in the 1990s by the CSIRO, a renowned research institution in Australia. This non-GMO barley variety 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 known for its prebiotic effects that may promote gut health. The average American diet is notably low in fiber, with individuals across all age groups struggling to meet the recommended intake of three to six servings of whole grains daily. At the same time, there is an increasing consumer focus on gut health. While probiotics have traditionally taken center stage, prebiotics—essentially food for beneficial bacteria—are beginning to attract more attention. A report by Global Industry Analysts suggests that the demand for prebiotic products could elevate the market to $7.8 billion by 2022. Currently, BARLEYmax is commercially available through an Australian company called Blue Lake Milling, but it has also been successfully tested in various other countries, including the United States. In addition to the Barley+ product line, this grain is incorporated into a range of offerings from several Australian companies, including breads, wraps, cereals, and snack bars. As consumers look for ways to enhance their health, including how much to take of supplements like calcium citrate, the interest in high-fiber products like BARLEYmax will likely continue to grow.