Generally diets that are high in fruits and vegetables and non-fat dairy products are associated with the least heart disease and thus the best blood pressure. However some foods and nutrients will actually lower blood pressure The DASH trial looked at various nutritional strategies besides just the lowering of sodium and the increasing of potassium, and in this study calcium in the diet was shown to lower blood pressure. This means that the addition of calcium supplements can lower blood pressure.
Gynos always advise consultation as too much calcium can cause other medical problems. Fiber lowers blood pressure, especially if it comes in the form of oats, so if you are planning a great breakfast for your blood pressure: eat oatmeal. For lunch consider a shake with amino acids: taurine and arginine are the two that have been shown to lower blood pressure the most. By dinner: this is easy: red wine and something flavored with garlic, for us it may be our favorite pasta dish, if you keep your portion in moderation, or sub out spaghetti squash, it's even better for your blood pressure. And a gyno tip: actually measure your blood pressure at home now and then, just to fact check that your health strategies are working!