I would like to see where you read anything about it being harmful and killing good bacteria..
Did'nt mean to give the impresion this product was perticulary harmful it would be hard to find anything showing it kills good bacteria but there's plenty showing it kills bacteria. I'll leave it to the makers to show it knows one from the other.
i know that some of these very infections themselves can last (w treatment) for serveral weeks to a few months
It's not toxic so if you have gastrointestinal diseases why not?
The moral of this is use a pro biotic with it
and more importantly was the berberine alkaloid actually used medincally for these purposes
Rabbani GH, et al., Randomized controlled trial of berberine sulfate therapy for diarrhea due to enterotoxigenic E. coli and Vibrio cholerae, Journal of Infectious Diseases 1987; 155(5): 979-984.
Kaneda Y, et al., In vitro effects of berberine sulphate on the growth and structure of Entamoeba histolytica, Giardia lamblia, and Trichomonas vaginalis, Annals of Tropical Medicine and Parasitology 1991; 85(4); 417-425.
Here's one showing it has no effect on blood sugar on healthy adults:
Ni Yanxia, et al., Therapeutic effect of berberine on 60 patients with non-insulin dependent diabetes mellitus and experimental research, Chinese Journal of Integrated Traditional and Western Medicine 1995; 1(2); 91-95. - extract:
berberine was administered orally at a dose of 300, 400, or 500 mg each time. A control group without diabetes was similarly treated, with no effect on blood sugar
Still as I said it fills out the muscles nicely so who really cares about studies and maybe it's not meant to effect insulin either way it does what it says, still you should be aware of what your consuming and it's potential effects.