What to do if i have high blood pressure, should i eat salt free food?

Good start: that would be a great start, low salt diet, cut out alcohol, exercise, weight loss, all good lifestyle changes one can make prior to starting pharmacotherapy. Good luck.

High BP: Optimal Diet for hypertension is called the DASH diet. This is a salt free diet that is dominated by fruit, veggies, whole grains, very lean meats of modest portions, no saturated fat, fish, no fried foods, minimal sugar, minimal bread, minimal muffin, etc and minimal pasta. Fruit and veggies can help lower BP with magnesium and potassium. Achieve ideal weight; don't smoke; exercise twice daily;