Therapeutic Potential of Fulvic Acid in Chronic Inflammatory Diseases and Diabetes. Information here indicates that FvA can act as an immune modulator, influence the redox state, and potentially affect gut health. FvA is shown to decrease proinflammatory markers but also activate the immune system to kill bacteria. It is shown to reduce oxidative stress and even induce apoptosis in hepatic cancer lines. FvA is shown to also influence the microbiome and possibly improve gut function.