Probitiocs can lower blood pressure.

People who consume probiotics on a regular basis (in the form of yogurt, kefir or supplements) tend to have lower blood pressure than those who do not consume probiotics,  Improved intestinal structure with decreased intestinal permeability, Lower levels of endotoxins (byproducts of bacterial disintegration that contribute to inflammation), Lower levels of inflammation in the central nervous system. 

Steven B. Wasserman, RN, DC chiropractor los alamitos