Hello and welcome to MedHelp's forums. Really, this is an excellent question. We first want to say we encourage everyone to have an annual physical and discuss their blood pressure findings with their doctor. Prevention is key to cardiac health and diet and lifestyle choices can greatly impact that.
Here is an overview on eating and blood pressure. https://my.clevelandclinic.org/health/articles/4249-hypertension-and-nutrition. It gives a nice list of what to eat and what not to eat. Sodium is something experts agree to cut down on as well as processed or fatty foods.