Two meta-analyses conclude that curcumin from turmeric can help people reduce their weight and waist circumference..
Cassia cinnamon contains coumarin, which can damage the liver. Without coumarin, Ceylon cinnamon does not seem to be bad for the liver.
A nontoxic bacterial cocktail or a probiotic called Saccharomyces boulardii may help you avoid diarrhea from C. diff due to antibiotics.