Get a note that serving size for foods in DASH diet is different from regular meal plan. The amount of servings of vegetable is depend upon the daily calorie intake. If you are taking 2000 calorie diet then the servings will be 4-5 a day and for 1600 calorie it will be 3-4 a day.  Serving size: 1/2 cup of cut-up raw or cooked vegetables. 1/2 cup of low sodium vegetable juice. 1 cup of raw green leafy vegetables.