What is the cure of hypertension without drugs?

Several: Weight loss, diet and exercise may work.

Paleo diet/low carb: Contrary to popular belief, best way to improve blood pressure, cholesterol, and weight is by completely stopping high carb foods (grains, lentils, potatoes based items). Also avoid milk protein since it causes insulin resistance. Low carb foods: eggs, fish, meats, vegetables, avocados, some saturated fat (butter, coconut oil), olive oil are very effective. This can help avoid meds