Low Blood Pressure

Recently purchased CherryActive to help with my Mothers cholesterol, but she also suffers from Low blood pressure, and today she has read how it is good for high blood pressure, and will no longer take it, as concerned it will lower hers more, is there any information with regards to it normalising levels, or will it lower hers more? I emailed the company and they were unable to supply me with any information, so was hoping some kind person would be able to help with any research they know, or help advise any foods (She will not take supplements) which will help both Low Blood pressure, and cholesterol.

Found this

Meta-analysis of clinical trials found a significant blood pressure–lowering effect (−5.9/−3.4 mm Hg) for potassium supplementation in hypertensive but not in normotensive persons

So hopefully will not effect her, but would like more info