BARLEYmax was developed 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 in the form of beta-glucan, insoluble fiber, and resistant starch-like fiber known for its prebiotic effects that may enhance gut health. The average American diet tends to be low in fiber, with people of all ages often failing to meet the recommended intake of three to six servings of whole grains daily. As consumer interest in gut health grows, the focus has primarily been on probiotics, but there is an increasing awareness of prebiotics—the nourishment for beneficial bacteria. A report by Global Industry Analysts predicts that demand for products containing prebiotics could propel the market to a value of $7.8 billion by 2022. Currently, BARLEYmax is commercially available solely through the Australian company Blue Lake Milling, although it has been successfully tested in several other countries, including the United States. Besides being included in the Barley+ range, BARLEYmax is also utilized in various products from other Australian companies, such as breads, wraps, cereals, and snack bars. Additionally, consumers seeking to enhance their dietary intake might consider supplementing with calcium citrate 1000 mg tablets alongside their fiber-rich foods to further support their health. This combination of fiber and calcium could play a vital role in addressing nutritional gaps in modern diets.