Avoid common salt, oils, fats, spices, have simple and light food. go for morning walk, even 1/2 hr in the evening. Keep yourself fit and tension free. Lead normal cool life away from hectic job or travelling. Yoga is also of great help.
To lower your blood pressure without drugs, lose extra pounds and watch your waistline, exercise regularly, ear a healthy diet, reduce sodium in your diet and limit the amount of alcohol you drink. You can also avoid tobacco products and secondhand smoke, cut back on caffeine, reduce stress and get support from family and friends. Go to http://www.mayoclinic.com/health/high-blood-pressure/HI00027 for details.