10 Best Gut Health Supplements in 2026 By Green Matters Staff Published Aug. 11 2026, 9:50 p.m. ET Source: Adobe Stock 10 Best Gut Health Supplements in 2026Walk down any supplement aisle and every label promises a "healthier gut." The best gut health supplements work because they match a specific job to a specific goal, whether that is rebuilding microbiome balance, easing bloating, or keeping you regular. How long do gut health supplements take to work? Can you take multiple gut health supplements together?