I don't think if you use brewers yeast [human grade] you can over dose . 1Tab to each cup of feed.Ok so no niacin in water just vitamin e so if I add brewers yeast to his food will he get too much or is there a too much. Poor little Chewbacca! The lady told me not to name him but I had too!
Bless it's heart hope you see improvement quick.
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