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. 2021 Aug 1;13(8):2681. doi: 10.3390/nu13082681

Table 2.

Average content (mg/kg wet weight) of sodium (Na) and potassium (K) in foods and number (%) of samples below the limit of detection (LOD).

Sodium Potassium
Food 1 N Mean Na <LOD
(N)		 <LOD (%) Mean K <LOD
(N)		 <LOD
(%)		 Na/K Ratio
Cereals and cereal products 112 3397.4 2 1.8 2094.8 0 0.0 1.62
  Pasta and other grains 41 551.4 1 2.4 2544.2 0 0.0 0.22
  Rice 8 8.0 1 12.5 1443.9 0 0.0 0.01
  Bread and rolls 42 5409.8 0 0.0 1888.7 0 0.0 2.86
  Pizza, crackers, and other salty snacks 21 6220.2 0 0.0 1877.3 0 0.0 3.31
Meat and meat products 86 6037.9 0 0.0 4275.9 0 0.0 1.41
  Red meat 28 1715.9 0 0.0 4020.9 0 0.0 0.43
  White meat 12 1637.6 0 0.0 5258.2 0 0.0 0.31
  Processed meat 36 12,000.0 0 0.0 4329.0 0 0.0 2.77
  Offal 10 843.4 0 0.0 3620.1 0 0.0 0.23
Milk and dairy products 72 4356.2 0 0.0 1178.1 0 0.0 3.70
  Milk and yogurt 13 416.5 0 0.0 1726.4 0 0.0 0.24
  Cheese 59 5224.2 0 0.0 1057.3 0 0.0 4.94
    Fresh cheese 17 4002.5 0 0.0 1241.9 0 0.0 3.22
    Aged cheese 42 5718.8 0 0.0 982.6 0 0.0 5.82
Eggs 9 1110.8 0 0.0 1192.7 0 0.0 0.93
Fish and seafood 62 4271.7 0 0.0 2789.1 0 0.0 1.53
  Fish 41 4251.5 0 0.0 3407.6 0 0.0 1.25
    Preserved and tinned fish 9 13,000.0 0 0.0 3572.0 0 0.0 3.64
    Non-piscivorous fish 15 1430.8 0 0.0 3541.6 0 0.0 0.40
    Piscivorous fish 17 2079.5 0 0.0 3202.4 0 0.0 0.65
  Crustaceans and mollusks 21 4311.3 0 0.0 1581.5 0 0.0 2.73
All vegetables 196 1846.7 2 1.0 3056.9 0 0.0 0.60
  Leafy vegetables 40 908.9 0 0.0 3307.6 0 0.0 0.27
  Tomatoes 19 2285.4 0 0.0 4244.1 0 0.0 0.54
  Root vegetables 14 435.6 1 7.1 2662.1 0 0.0 0.16
  Cabbage 28 579.2 0 0.0 3140.3 0 0.0 0.18
  Other vegetables 63 3903.5 1 1.6 2790.8 0 0.0 1.40
Mushrooms 5 218.2 0 0.0 5093.9 0 0.0 0.04
Legumes 43 725.9 11 25.6 10,062.5 0 0.0 0.07
Potatoes 14 1543.8 0 0.0 4054.7 0 0.0 0.38
Fresh fruit 60 14.8 3 5.0 1902.6 0 0.0 0.01
  Citrus fruit 12 24.7 1 8.3 1712.9 0 0.0 0.01
  All other fruit 48 12.3 2 4.2 1950.0 0 0.0 0.01
Dry fruit, nuts and seeds 45 1138.4 7 15.6 7189.2 0 0.0 0.16
  Dry fruit 8 1149.8 0 0.0 8351.2 0 0.0 0.14
  Nuts and seeds 37 1135.9 7 18.9 6938.0 0 0.0 0.16
Sweets products 79 1408.0 1 1.3 3271.8 0 0.0 0.43
  Sugar, non-chocolate confectionery 8 128.6 0 0.0 2078.2 0 0.0 0.06
  Chocolate, candy bars, etc. 21 392.2 1 4.8 7529.2 0 0.0 0.05
  Ice-cream 5 297.0 0 0.0 1490.8 0 0.0 0.20
  Cakes, pies and pastries 30 2108.8 0 0.0 1515.8 0 0.0 1.39
  Biscuits, dry cakes 15 2481.4 0 0.0 2053.5 0 0.0 1.21
Oils and fats 23 1305.4 8 34.8 121.8 0 0.0 10.72
  Vegetables fats and oils (non-olive) 12 332.2 5 41.7 24.2 7 58.3 13.73
  Olive oil 4 1.3 3 75.0 6.1 1 25.0 0.21
  Butter and other animal fats 7 3718.9 0 0.0 355.3 0 0.0 10.47
Beverages 102 35.4 1 0.9 534.2 1 0.9 0.07
  Coffee and tea 8 21.4 0 0.0 1236.5 0 0.0 0.02
  Wine 50 14.7 0 0.0 566.1 0 0.0 0.03
    Red wine 27 14.3 0 0.0 708.2 0 0.0 0.02
    White wine 23 15.1 0 0.0 399.3 0 0.0 0.04
  Aperitif wines and beers 8 53.3 1 12.5 493.3 0 0.0 0.11
  Spirits and liqueurs 21 45.8 0 0.0 60.9 1 4.8 0.75
  Fruit juices 8 52.2 0 0.0 1229.5 0 0.0 0.04
  Soft drinks 7 128.6 0 0.0 175.5 0 0.0 0.73

1 Bold characters relate to main food categories.