High blood pressure
can typically be traced to infection not found in typical lab tests. Also, mineral deficiencies, heavy metal toxicity, toxic liver
, and weak kidneys.
I suggest you see a Certified Nutritional Therapist to test you for specific nutrient deficiencies and look at cofactors relating to mineral digestion, in particular. They can give you a good diet and supplementation that will help you without having to guess what will work for you.