A reader last time suggested using parts of the hawthorn bush, but another reader this time says the berries are the only effective part. Ayurvedic medicine uses amla berries, for instance. Another reader reduced his high blood pressure by eliminating processed foods from his diet. Instead he eats fresh and dried fruit, salad and uncooked vegetables, and small amounts of nuts, meat and fish. Folic acid might also help, according to one reader who read a Reuters' report. It occurs naturally in orange juice and leafy green vegetables. If you supplement, take at least 1,000 micrograms a day of total folate, from supplements and diet.