diabetesupdate.blogspot.com...
A lot of people with Parkinson's have diabetes. I became diabetic about 3 years ago, I think I had diabetes for a lot longer than that and did not know it. I took berberine for a very short time it did not agree with me. It's tremendously upset my stomach.
Urinary iodine is associated with insulin resistance in subjects with diabetes mellitus type 2.
ncbi.nlm.nih.gov/pubmed/232...
Magnesium in diabetes mellitus.
ncbi.nlm.nih.gov/pubmed/102...
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Berberine and PD:
Neurotoxic effects of berberine on long-term L-DOPA administration in 6-hydroxydopamine-lesioned rat model of Parkinson's disease.
ncbi.nlm.nih.gov/pubmed/235...
So don't take berberine?
I don't because there are other natural herbs/amino acids..... which have a better clinical/research history than berberine.
No, I only took it for a very short time. Since then I have been on insulin. After trying metformin and becoming deathly ill after it I was managing it with a diet till it stopped working. I wanted something that would be the easiest on my system with the fewest side effects.. The insulin seemed to fit the bill. I am following dr. Bernstein recommendations. When I first started on basal insulin they put me on Lantus to which I became very fast allergic. I am using levemir now and that seems to be working out just fine. Mary
what should i try?
In days of old stoners used to think the herb golden seal (GS) could detox marijuana from their system and berberine is a major component of GS.
christopherhobbs.com/librar...
Like antibiotics, golden seal should not be used for long periods:
"However, it is important to note that some people can actually be harmed by golden seal, if they take it for too long a time or in too great a quantity—especially if they have weak digestion."
Balancing diabetes with PDOral berberine improves brain dopa/dopamine levels to ameliorate Parkinson’s disease by regulating gut microbiota
How do I choose between treatment for Parkinson's and Diabetes.
Exenatide : any non diabetic users? Update from those using for diabetes with PD? 
Keto diet may do more harm than good, increases risk of CVD, CKD, cancer, and diabetes
