A growing body of evidence showed that gut microbiota dysbiosis might be associated with the pathogenesis of Parkinson’s disease (PD). Microbiota-targeted interventions could play a protective role in PD by regulating the gut microbiota-gut-brain axis. Sodium butyrate (NaB) could improve gut microbiota dysbiosis in PD and other neuropsychiatric disorders. However, the potential mechanism associated with the complex interaction between NaB and gut microbiota-gut-brain communication in PD needs further investigation.
From: ncbi.nlm.nih.gov/pmc/articl...
So -- if butyrate, which when taken "correctly" can affect Parkinson's, that shows that gut microbiota affect dopamine in some way. Which indicates that RLS may be caused by a problem in the gut microbiota. My own opinion is that the across-the-board ingestion of antibiotics is the cause of so many of these "diseases" that are increasing rapidly. If you kill off your gut bacteria instead of the longer path of balancing it, the consequences occur. I am choosing to first, not ingest things that my gut can't handle, and second, everything in my power to heal the gut's microbiota. For me, the thing I'm doing now is taking a supplement called Tributyrin-X, which you can look up if you want. My doctor just told me about another, that has studies showing that it has a beneficial effect on Parkinson's. Because it changes the environment for the needed bacteria, allowing them to reach the levels needed for health.