BARLEYmax was created during the 1990s by CSIRO, a well-regarded research institution in Australia. This non-GMO barley variety is known for its high dietary fiber content, which includes soluble fiber such as beta-glucan, along with insoluble fiber and resistant starch-like fiber that has prebiotic properties believed to enhance gut health. Typically, the average American diet lacks sufficient fiber, with individuals across all age groups failing to consume the recommended three to six servings of whole grains daily. As awareness of gut health increases among consumers, the focus has primarily been on probiotics, yet prebiotics—the essential nourishment for beneficial bacteria—are also gaining prominence. A report from Global Industry Analysts indicates that the demand for prebiotic-rich products could propel the market to $7.8 billion by 2022. Currently, BARLEYmax is commercially available through Blue Lake Milling, an Australian company, but it has been successfully tested in several other countries, including the United States. In addition to the Barley+ product line, this grain is incorporated into various offerings from other Australian companies, such as breads, wraps, cereals, and snack bars. Moreover, for those looking to support gut health in conjunction with dietary fiber, the best calcium citrate supplement can also play a role in overall wellness, making it a valuable addition to a balanced diet.