Nephrology Book


Dietary Potassium

Aka: Dietary Potassium, Foods with High Potassium Content, Potassium Content in Food
  1. See Also
    1. Potassium Replacement
    2. Hypokalemia Approach
    3. Hypokalemia due to Renal Potassium Loss
    4. Hypokalemia due to Extrarenal Potassium Loss
    5. Hypokalemia due to Transcellular Potassium Shift
    6. Familial Periodic Paralysis
  2. Precautions
    1. Potassium Content in Food is not an exact replacement
    2. Renal disease patients or those with other Hyperkalemia risk factors should avoid high Potassium foods
  3. Background: Potassium
    1. Elemental Potassium (K+): 39 mg/meq
    2. Potassium Chloride (KCl): 75 mg/meq
  4. Preparations: Salt Substitute contains extremely high Potassium
    1. Most salt substitutes (e.g. no-salt) are composed of Potassium chloride (75 mg/meq)
    2. Potassium Chloride Salt-Substitute Products
      1. Nu-Salt
        1. Potassium (mg): 530 mg per 1 g serving (1/6 tsp) or 795 mg per 1/4 tsp (for comparison)
        2. Potassium (meq): 530 mg / 39 mg per K+ meq = 13.6 meq per 1/6 tsp (20.3 meq per 1/4 tsp)
      2. NoSalt
        1. Potassium: 650 mg per 1.3 g serving (1/4 tsp)
        2. Potassium (meq): 650 mg / 39 mg per K+ meq = 16.7 meq per 1/4 tsp serving
      3. Morton's Salt Substitute
        1. Potassium: 610 mg per 1.2 g serving (1/4 tsp)
        2. Potassium (meq): 610 mg / 39 mg per K+ meq = 15.6 meq per 1/4 tsp serving
  5. Precautions
    1. Salt substitutes vary widely on Potassium concentration
      1. Morton's Salt Substitute, Nu-Salt or NoSalt contain 16-20 meq K+ per 1/4 tsp (as calculated above)
      2. Mrs. Dash only contains 0.4 meq Potassium per 1/4 tsp
    2. Highly concentrated, Potassium chloride salt substitute can easily be over-dosed (Exercise caution)
      1. At 67 to 82 meq per teaspoon, NoSalt, Nu-Salt or Morton's Salt Substitute can easily exceed safe limits
  6. Preparations: Potassium content (from USDA, with meq based on 39 mg/meq for elemental Potassium)
    1. Molasses
      1. Potassium: 308 mg or 7.9 meq per tbs
    2. Medjool Date
      1. Potassium: 167 mg or 4.3 meq per date
    3. Baked potato with skin
      1. Potassium: 166 mg or 4.3 meq per potato half
    4. Dried peaches
      1. Potassium: 129 mg or 3.3 meq per peach half
    5. Raw Fig
      1. Potassium: 116 mg or 3.0 meq per medium fig
    6. Avocado
      1. Potassium: 72 mg or 1.8 meq per tablespoon
    7. Orange Juice
      1. Potassium: 62 mg or 1.6 meq per fluid ounce juice
    8. Banana Slice
      1. Potassium: 60 mg or 1.5 meq per inch of banana (one banana: 7-8 inches)
    9. Dried apricot
      1. Potassium: 41 mg or 1.1 meq per dried apricot half
    10. Cooked Black Beans
      1. Potassium 38 mg or 1.0 meq per fluid ounce
    11. Cantaloupe
      1. Potassium: 37 mg or 0.9 meq per melon ball
  7. Preparations: Foods with highest Potassium content (>25 meq/3.5 ounces)
    1. Figs
    2. Molasses
    3. Seaweed
  8. Preparations: Foods with very high Potassium (>12.5 meq/3.5 ounces)
    1. Dates, prunes, dried apricot, dried peaches
    2. Tree Nuts including avocados
    3. Bran ceral, wheat germ
    4. Lima Beans
    5. Baked potatoes
    6. Avocado
  9. Preparations: Foods with High Potassium Content (>6 meq/3.5 ounces)
    1. Vegetables
      1. Spinach, Tomatoes, Potatotes, Carrots, Beets
      2. Broccoli, Cauliflower, Winter squash
    2. Fruits
      1. Banana (1 meq per inch of banana)
      2. Kiwi fruit, oranges, mangos
      3. Cantaloupe
  10. Resources
    1. USDA National Nutrient Database
  11. References
    1. Gennari (1998) N Engl J Med 339:451-8 [PubMed]

Dietary Potassium (C0162800)

Definition (MEDLINEPLUS)

Potassium is a mineral that the body needs to work normally. It helps nerves and muscles communicate. It also helps move nutrients into cells and waste products out of cells. A diet rich in potassium helps to offset some of sodium's harmful effects on blood pressure.

Most people get all the potassium they need from what they eat and drink. Sources of potassium in the diet include

  • Leafy greens, such as spinach and collards
  • Fruit from vines, such as grapes and blackberries
  • Root vegetables, such as carrots and potatoes
  • Citrus fruits, such as oranges and grapefruit
Definition (NCI_CRCH) Forms of the element potassium found in foods.
Definition (CSP) potassium or potassium compounds in foods.
Definition (MSH) Potassium or potassium compounds used in foods or as foods.
Concepts Food (T168)
MSH D017419
English Potassium, Dietary, Dietary Potassium, Potassium, Dietary [Chemical/Ingredient], dietary potassium, potassium dietary, Potassium, K
Swedish Kalium i kosten
Czech draslík dietní
Finnish Ravinnon kalium
Polish Potas w pokarmach
Japanese 食品中のカリウム, カリウム-食品, 食品カリウム, 食物カリウム, カリウム-食物, 食品中のカリウム成分
French Potassium alimentaire
German Kalium, Nahrungs-, Nahrungskalium
Italian Potassio alimentare
Portuguese Potássio na Dieta
Spanish Potasio en la Dieta
Derived from the NIH UMLS (Unified Medical Language System)

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