Making few dietary changes and losing weight are effective for reducing the blood pressure. 

Do's:

• Lose weight if you are overweight or obese.
  
• Eat a healthy diet, including more of fruits, vegetables, and low fat dairy products, less saturated and total fat.
• Potassium is an important for the maintenance of high blood pressure e.g coconut water, banana etc.
• Exercise regularly at least for 30 mins.
  

Don'ts:

• Reduce the salt intake.
  
• Avoid canned, prepackaged, or processed foods.
•  Avoid smoking and alcohol.
•  Avoid stress.