BARLEYmax was developed in the 1990s by CSIRO, a renowned Australian research institution. 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 that has a prebiotic effect believed to enhance gut health. In general, the average American diet is deficient in fiber, with individuals across all age groups often failing to consume even one of the recommended three to six servings of whole grains daily. As interest in gut health continues to grow, the emphasis has primarily been on probiotics; however, prebiotics—the nourishment for beneficial bacteria—are starting to gain recognition. A report by Global Industry Analysts predicts that the market for prebiotic-containing products could reach $7.8 billion by 2022. Currently, BARLEYmax is commercially available exclusively through an Australian company, Blue Lake Milling, although 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 other Australian companies, such as breads, wraps, cereals, and snack bars. Interestingly, some consumers looking to improve their gut health may consider taking calcium citrate on an empty stomach to enhance absorption, further emphasizing the growing interest in dietary choices that support well-being. Overall, BARLEYmax presents a promising option for those seeking to increase their fiber intake while also supporting gut health through prebiotic consumption.