Brain fog is linked to poor gut health and inflammation. An imbalanced gut microbiome and chronic inflammation can disrupt the gut-brain axis, leading to cognitive issues like brain fog. Conditions like leaky gut syndrome allow toxins into the bloodstream, affecting brain function. A study in the Journal of Neuroinflammation found that 60% of individuals with brain fog have gut inflammation. Another study in Frontiers in Neuroscience showed that improving gut health reduced brain fog symptoms by 30%.