BARLEYmax was developed in the 1990s by CSIRO, a renowned research organization in Australia. This non-GMO barley variety is recognized for its high dietary fiber content, which includes soluble fiber such as beta-glucan, insoluble fiber, and resistant starch-like fiber that acts as a prebiotic, promoting gut health. The average American diet typically lacks sufficient fiber, with individuals of all ages struggling to meet the recommended intake of three to six servings of whole grains daily. As interest in gut health continues to grow, the spotlight has primarily been on probiotics, while prebiotics—the nourishment for beneficial bacteria—are also starting to gain traction. 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 an Australian company, Blue Lake Milling, but it has been successfully trialed in various countries, including the United States. In addition to the Barley+ product line, this grain is incorporated into a variety of offerings from other Australian companies, such as breads, wraps, cereals, and snack bars. Furthermore, incorporating BARLEYmax into products can enhance their nutritional profile by providing essential minerals like magnesium and calcium citrate, which are vital for overall health. This makes BARLEYmax not only a source of dietary fiber but also a functional ingredient that supports gut health and contributes to the intake of magnesium and calcium citrate.