The Elaboration of DASH DIET is Dietary Approaches to Stop Hypertension Diet.
The DASH diet was developed by the National Heart, Lung and Blood Institute (NHLBI), in coordination with a number of major US universities, to combat hypertension.

Basically Dash diet consider number of things to control blood pressure. Such as:
Diet portion size
Making sure eating the right amount of nutrients
Eating a healthy variety of different foods

Benefits of Dash diet:
Dash helps to control blood pressure. It has numerous health benefits:
The DASH diet also protects against:
Osteoporosis
Heart disease
Stroke
Cancer
Diabetes
So now the question is What do we need to eat on a DASH diet?
Dash diets include:
Foods with relatively low in sodium
Fruits
Vegetables
Low-fat dairy products
Grains

DASH diets are low in saturated fat, cholesterol and total fat. So Dash diet is good for maintaining cholesterol level. If you want to stay healthy and disease free you may consider taking dash diets