The pH of Foods – pH of Alkaline Foods

The pH of Foods: The relative alkalinity or acidity of food is measured by the pH value of the ash residue that remains after the food has been metabolised by our body. This ash can be acid, alkaline or neutral depending largely upon the mineral content of the food.

As a basic rule – potassium, calcium, magnesium, zinc, silver, sodium and iron leave an alkaline residue while sulphur, chlorine, phosphorous and iodine create an acid environment.

The foods that are either alkalising or acidifying are very easy to categorise. The common sense ‘bad’ foods (sugar, refined foods, foods high in saturated fat and trans fats, meat, dairy, yeast, fizzy drinks, crisps, chocolate, alcohol etc) all leave acid ash. Conversely, the common sense ‘good foods’ (salads, vegetables etc) are alkalising.

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The confusing food for many people is fruit. The bottom line is that due to the extremely high sugar content, most fruits have an acidifying effect on the body. This is a great shame due to the nutrients that they also contain. However, the con’s outweigh the pros. The fruits that are an exception to this rule include avocado, lime, lemon, watermelon and tomato.

Food pH Chart

The pH score given is an approximate relative potential of acidity (-) or alkalinity (+) within one ounce of food:

Alkalising Foods / DrinksRelative pH
Cucumber+31.5
Alfalfa Sprouts+29.3
Soy Sprouts+29.5
Avocado+15.6
Tomato+13.6
Summer Radish+39.4
Kamut Grass+27.6
Carrot+9.5
Soy Beans (soaked)+12.8
Soy Lecithin (pure)+38
Cabbage+14.1
Celery+13.3
Garlic+13.2
Spinach+13.1
Watercress+7.7
Leeks+7.2
Courgette+5.7
Fresh Soy Beans+12
Tofu+3.2
Lemons+9.9
Limes+8.2
Cucumber+31.5
Wheatgrass+33.8
Sprouted Radish Seeds+28.4
Barley Grass+28.1
Red Cabbage+6.3
Almonds+3.6
Olive Oil+1
Flax Seed Oil+3.5
Turnip+8
Asparagus+1.3
Onion+3.0
Watermelon-1.0
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Acidifying Foods/DrinksRelative pH
Pork-38.0
Veal-35
Beef-34.5
Chicken-18
Eggs-18
Hard Cheese-18.1
Quark-17.3
Cream-3.9
White Bread-10
Wholemeal Bread-6.5
Rye Bread-2.5
Pistachios-16.6
Peanuts-12.8
Cashews-9.3
Margarine-7.5
Corn Oil-6.5
Butter-3.9
Artificial Sweeteners-26.5
Chocolate-24.6
White Sugar-17.6
Fructose-9.5
Honey-7.6
Ketchup-12.4
Mayonnaise-12.5
Mustard-19.2
Soy Sauce-26.2
Vinegar-39.4
Liquor-38.7
Wine-16.4
Beer-26.8
Coffee-25.1
Fruit Juice (Natural)-8.7
Fruit Juice (Processed)-33.6
Tea (Black)-27.1

*Source – Back to the House of Health (Redford-Young, S)

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