Double boiled mashed potatoes

Diet Type | Meal Type

Recipe adapted from the Journal of Renal Nutrition, November 2008

Double boiled mashed potatoes

Double boil potatoes to remove potassium (one medium whole baked potato contains a whopping 926 mg of potassium – almost 1/3rd of the daily allowance for someone following a low potassium diet!). Peeling potatoes; followed by soaking or double boiling potatoes can reduce potassium by about half. Portion size remains important to consider as ½ cup soaked or double boiled potatoes will still contain ~200 mg potassium.


  • 4 small potatoes
  • water
  • 1 tablespoon of unsalted butter or margarine


  1. Peel and cut potatoes into thin slices or small pieces (or grate them)
  2. Place the sliced potatoes in a large amount of water (at least 2:1)
  3. Bring water and potatoes to boil.
  4. Drain off the water and once again add a large amount of fresh water.
  5. Bring the water to a boil again and cook until the potatoes are soft and tender.
  6. Discard the cooking water.
  7. Mash with butter or margarine.

Nutrient Analysis

Calories: 133 g

Protein: 2 g

Carbohydrates: 25 g

Fibre: 1.7 g

Total Fat: 3 g

Sodium: 6.6 mg

Phosphorus: 51 mg

Potassium: 215 mg

Renal Diet Nutrient Analysis

Servings per recipe: 4

Serving size: 1/2 cup

Renal and Diabetic Exchanges

1 vegetable

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