Food Acidity ranges

AcidityDescription
0 to 3.6Very acid - very bad for heartburn
3.6 to 4.5Mildly acid - may or may not cause heartburn
4.5 or higherNot acid - most probably won't cause heartburn

For more details search on food acidity and alkalinity look at the list below. Items with higher values are the safest for your stomach. For more details on specific food items and whether they cause heartburn or not take a look at Food Database

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Item Approximate pH
Abalone6.10 - 6.50
Abalone mushroom5.00
Ackees5.5
Aloe vera6.1
Aloe Juice6.00 - 6.80
Anchovies6.5
Anchovies, stuffed with capers, in olive oil5.58
Antipesto5.60
Apple, baked with sugar3.20 - 3.55
Apple, eating3.30 - 4.00
Apples, Delicious3.9
Apples, Golden Delicious3.6
Apples, Jonathan3.33
Apples, McIntosh3.34
Apple Juice3.35 - 4.00
Apple Sauce3.10 - 3.60
Apple Winesap3.47
Apricots3.30 - 4.80
Apricots, Canned3.40 - 3.78
Apricots, Dried, stewed3.30 - 3.51
Apricots, Nectar3.78
Apricots , Pureed,3.42 - 3.83
Apricots, Strained3.72 - 3.95
Arrowroot Crackers6.63 - 6.80
Arrowroot Cruel6.37 - 6.87
Artichokes5.50 - 6.00
Artichokes, canned, acidified4.30 - 4.60
Artichokes, French, cooked5.60 - 6.00
Artichokes, Jerusalem, cooked5.93 - 6.00
Asparagus6.00 - 6.70
Asparagus Buds6.7
Asparagus Stalks6.1
Asparagus, cooked6.03 - 6.16
Asparagus, canned5.00 - 6.00
Asparagus, frozen, cooked6.35 - 6.48
Asparagus, green, canned5.20 - 5.32
Asparagus, strained4.80 - 5.09
Avocados6.27 - 6.58
Baby corn5.20
Baby Food Soup, unstrained5.95 - 6.05
Bamboo Shoots +5.10 - 6.20
Bamboo Shoots, preserved3.50 - 4.60
Bananas4.50 - 5.20
Bananas, red4.58 - 4.75
Banana, yellow5.00 - 5.29
Barley, cooked5.19 - 5.32
Basil pesto4.9
Bass, sea, broiled6.58 - 6.78
Bass, striped, broiled6.50 - 6.70
Beans5.60 - 6.50
Beans, Black5.78 - 6.02
Beans, Boston style5.05 - 5.42
Beans, Kidney5.40 - 6.00
Beans, Lima6.5
Beans, Soy6.00 - 6.60
Beans, String5.6
Beans, Wax5.30 - 5.70
Beans, pork & tomato sauce, canned5.10 - 5.80
Beans, refried5.9
Beans, vegetarian, tomato sauce, canned5.32
Beets5.30 - 6.60
Beets, cooked5.23 - 6.50
Beets, canned, acidified4.30 - 4.60
Beets, canned4.90 - 5.80
Beets, chopped5.32 - 5.56
Beets, strained5.32 - 5.56
Bird nest soup7.20 - 7.60
Blackberries, Washington3.85 - 4.50
Blueberries, Maine3.12 - 3.33
Blueberries, frozen3.11 - 3.22
Bluefish, Boston, filet, broiled6.09 - 6.50
Bran Flakes5.45 - 5.67
Bran, All5.59 - 6.19
Bread, white5.00 - 6.20
Bread, Boston, brown6.53
Bread, Cracked wheat5.43 - 5.50
Bread, pumpernickel5.40
Bread, Rye5.20 - 5.90
Bread, whole wheat5.47 - 5.85
Breadfruit, cooked5.33
Broccoli, cooked6.30 - 6.52
Broccoli, frozen, cooked6.30 - 6.85
Broccoli, canned5.20 - 6.00
Brussels sprout6.00 - 6.30
Buttermilk4.41 - 4.83
Cabbage5.20 - 6.80
Cabbage, Green5.50 - 6.75
Cabbage, Red5.60 - 6.00
Cabbage, Savoy6.3
Cabbage, White6.2
Cactus4.7
Calamary (Squid)5.8
Cantaloupe6.13 - 6.58
Capers6
Carp6
Carrots5.88 - 6.40
Carrots, canned5.18 - 5.22
Carrots, chopped5.30 - 5.56
Carrots, cooked5.58 - 6.03
Carrots, pureed4.55 - 5.80
Carrots, strained5.10 - 5.10
Cauliflower5.6
Cauliflower, cooked6.45 - 6.80
Caviar, American5.70 - 6.00
Celery5.70 - 6.00
Celery, cooked5.37 - 5.92
Celery Knob, cooked5.71 - 5.85
Cereal, strained6.44 - 6.45
Chayote (mirliton), cooked6.00 - 6.30
Cheese, American, mild4.98
Cheese, Camembert7.44
Cheese, Cheddar5.9
Cheese, Cottage4.75 - 5.02
Cheese, Cream, Philadelphia4.10 - 4.79
Cheese Dip5.8
Cheese, Edem5.4
Cheese, Old English6.15
Cheese, Roquefort5.10 - 5.98
Cheese, Parmesan5.20 - 5.30
Cheese, Snippy5.18 - 5.2l
Cheese, Stilton5.7
Cheese, Swiss Gruyere5.68 - 6.62
Cherries, California4.01 - 4.54
Cherries, frozen3.32 - 3.37
Cherries, black, canned3.82 - 3.93
Cherries, Maraschino3.47 - 3.52
Cherries, red, Water pack3.25 - 3.82
Cherries, Royal Ann3.80 - 3.83
Chicory5.90 - 6.05
Chili Sauce, acidified2.77 - 3.70
Chives5.20 - 6.31
Clams6.00 - 7.10
Clam Chowder, New England6.4
Coconut, fresh5.50 - 7.80
Coconut milk6.10 - 7.00
Coconut preserves3.80 - 7.00
Codfish, boiled5.30 - 6.10
Cod liver6.2
Conch7.52 - 8.40
Congee6.4
Corn5.90 - 7.30
Corn, canned5.90 - 6.50
Corn Flakes4.90 - 5.38
Corn, frozen, cooked7.33 - 7.68
Corn, Golden Bantam, cooked on cob6.22 - 7.04
Crab meat6.50 - 7.00
Crabapple Jelly, corn2.93 - 3.02
Cranberry Juice, canned2.30 - 2.52
Crabmeat, cooked6.62 - 6.98
Cream, 20 per cent6.50 - 6.68
Cream, 40 per cent6.44 - 6.80
Cream of Asparagus6.1
Cream of Coconut, canned5.51 - 5.87
Cream of Potato soup6
Cream of Wheat, cooked6.06 - 6.16
Chrysanthemum drink6.5
Cucumbers5.12 - 5.78
Cucumbers, Dill pickles3.20 - 3.70
Cucumbers, pickled4.20 - 4.60
Curry sauce6
Curry Paste,acidified4.60 - 4.80
Cuttlefish6.3
Dates, canned6.20 - 6.40
Dates, Dromedary4.14 - 4.88
Dungeness Crab Meat6.00
Eggplant5.50 - 6.50
Eggs, new-laid, whole6.58
Eggs, White7.96
Eggs, Yolk6.1
Eell6.2
Escarolle5.70 - 6.00
Enchalada sauce4.40 - 4.70
Fennel (Anise)5.48 - 5.88
Fennel, cooked5.80 - 6.02
Figs, Calamyrna5.05 - 5.98
Figs, canned4.92 - 5.00
Flounder, boiled6.10 - 6.90
Flounder, fi1et, broiled6.39 - 6.89
Four bean salad5.6
Fruit cocktail3.60 - 4.00
Garlic5.8
Gelatin Dessert2.6
Gelatin, plain jell6.08
Ginger5.60 - 5.90
Ginseng , Korean drink6.00 - 6.50
Gooseberries2.80 - 3.10
Graham Crackers7.10 - 7.92
Grapes, canned3.50 - 4.50
Grapes, Concord2.80 - 3.00
Grapes, Lady Finger3.51 - 3.58
Grapes, Malaga3.71 - 3.78
Grapes, Niagara2.80 - 3.27
Grapes, Ribier3.70 - 3.80
Grapes, Seedless2.90 - 3.82
Grapes, Tokyo3.50 - 3.84
Grapefruit3.00 - 3.75
Grapefruit, canned3.08 - 3.32
Grapefruit Juice, canned2.90 - 3.25
Grass jelly5.80 - 7.20
Greens, Mixed, chopped5.05 - 5.22
Greens, Mixed, strained5.22 - 5.30
Grenadine Syrup2.31
Guava nectar5.5
Guava, canned3.37 - 4. 1
Guava Jelly3.73
Haddock, Filet, broiled6.17 - 6.82
Hearts of Palm5.7
Herring6.1
Hominy, cooked6.00 - 7.50
Honey3.70 - 4.20
Honey Aloe4.7
Horseradish, freshly ground5.35
Huckleberries, cooked with sugar3.38 - 3.43
Jackfruit4.80 - 6.80
Jam, fruit3.50 - 4.50
Jellies, fruit3.00 - 3.50
Jujube5.20
Raspberry6.27
Vanilla6.49
Kale, cooked6.36 - 6.80
Ketchup3.89 - 3.92
Kippered, Herring, Marshall5.75 - 6.20
Herring, Pickled4.50 - 5.00
Kelp6.3
Kumquat, Florida3.64 - 4.25
Leeks5.50 - 6.17
Leeks, cooked5.49 - 6.10
Lemon Juice2.00 - 2.60
Lentils, cooked6.30 - 6.83
Lentil Soup5.8
Lettuce5.80 - 6.15
Lettuce, Boston5.89 - 6.05
Lettuce, Iceberg5.70 - 6.13
Lime Juice2.00 - 2.35
Lime2.00 - 2.80
Lobster bisque6.90
Lobster soup5.7
Lobster, cooked7.10 - 7.43
Loganberries2.70 - 3.50
Loquat (May be acidified to pH 3.8)5.1
Lotus Root6.90
Lychee4.70 - 5.01
Macaroni, cooked5.10 - 6.41
Mackerel, King, boiled6.26 - 6.50
Mackerel, Spanish, broiled6.07 - 6.36
Mackerel, canned5.90 - 6.40
Mangoes, ripe3.40 - 4.80
Mangoes, green5.80 - 6.00
Mangostine ?4.50 - .00
Maple syrup5.15
Maple syrup, light (Acidified)4.6
Matzos5.7
Mayhaw (a variety of strawberry)3.27 - 3.86
Melba Toast5.08 - 5.30
Melon, Casaba5.78 - 6.00
Melons, Honey dew6.00 - 6.67
Melons, Persian5.90 - 6.38
Milk, cow6.40 - 6.80
Milk, Acidophilus4.09 - 4.25
Milk, condensed6.33
Milk, evaporated5.90 - 6.30
Milk, Goat6.48
Milk, peptonized7.1
Milk, Sour, fine curd4.70 - 5.65
Milkfish5.3
Mint Jelly3.01
Molasses4.90 - 5.40
Muscadine (A variety of grape)3.20 - 3.40
Mushrooms6.00 - 6.70
Mushrooms, cooked6.00 - 6.22
Mushroom Soup, Cream of, canned5.95 - 6.40
Mussels6.00 - 6.85
Mustard3.55 - 6.00
Nata De Coco5
Nectarines3.92 - 4.18
Noodles, boiled6.08 - 6.50
Oatmeal, cooked6.20 - 6.60
Octopus6.00 - 6.50
Okra, cooked5.50 - 6.60
Olives, black6.00 - 7.00
Olives, green, fermented3.60 - 4.60
Olives, ripe6.00 - .50
Onions, pickled3.70 - 4.60
Onions, red5.30 - 5.80
Onion white5.37 - 5.85
Onions, yellow5.32 - 5.60
Oranges, Florida3.69 - 4.34
Oranges, Florida "color added"3.60 - 3.90
Orange Juice, California3.30 - 4.19
Orange, Juice Florida3.30 - 4.15
Orange, Marmalade3.00 - 3.33
Oysters5.68 - 6.17
Oyster, smoked6
Oyster mushrooms5.00 - 6.00
Palm, heart of6.7
Papaya5.20 - 6.00
Papaya Marmalade3.53 - 4.00
Parsley5.70 - 6.00
Parsnip5.30 - 5.70
Parsnips, cooked5.45 - 5.65
Pate5.9
Peaches3.30 - 4.05
Peaches, canned3.70 - 4.20
Peaches, cooked with sugar3.55 - 3.72
Peaches, frozen3.28 - 3.35
Peanut Butter6.28
Peanut Soup7.5
Pears, Bartlett3.50 - 4.60
Pears, canned4.00 - 4.07
Pears, Sickle cooked w/sugar4.04 - 4.21
Pear Nectar4.03
Peas, canned5.70 - 6.00
Peas, Chick, Garbanzo6.48 - 6.80
Peas, cooked6.22 - 6.88
Peas, dried (split green), cooked6.45 - 6.80
Peas, dried (split yellow), cooked6.43 - 6.62
Peas, frozen, cooked6.40 - 6.70
Peas, pureed4.90 - 5.85
Pea Soup, Cream of, Canned5.7
Peas, strained5.91 - 6.12
Peppers4.65 - 5.45
Peppers, green5.20 - 5.93
Persimmons4.42 - 4.70
Pickles, fresh pack5.10 - 5.40
Pimiento4.40 - 4.90
Pimento, canned, acidified4.40 - 4.60
Pineapple3.20 - 4.00
Pineapple, canned3.35 - 4.10
Pineapple Juice, canned3.30 - 3.60
Plum Nectar3.45
Plums, Blue2.80 - 3.40
Plums, Damson2.90 - 3.10
Plums, Frozen3.22 - 3.42
Plums, Green Gage3.60 - 4.30
Plums, Green Gage, canned3.22 - 3.32
Plums, Red3.60 - 4.30
Plums, spiced3.64
Plums, Yellow3.90 - 4.45
Pollack, filet, broiled6.72 - 6.82
Pomegranate2.93 - 3.20
Porgy, broiled6.40 - 6.49
Pork & Beans, rts.5.7
Potatoes5.40 - 5.90
Potatoes, Mashed5.1
Prunes, dried, stewed3.63 - 3.92
Prunes, Sweet5.30 - 5.60
Prunes, Tubers5.7
Potato Soup5.9
Prune Juice3.95 - 3.97
Prune, pureed3.60 - 4.30
Prune, strained3.58 - 3.83
Puffed Rice6.27 - 6.40
Puffed Wheat5.26 - 5.77
Pumpkin4.90 - 5.50
Quince, fresh, stewed3.12 - 3.40
Quince Jelly3.7
Radishes, red5.85 - 6.05
Radishes, white5.52 - 5.69
Raisins, seedless3.80 - 4.10
Rambutan (Thailand)4.9
Raspberries3.22 - 3.95
Raspberries, frozen3.18 - 3.26
Raspberries, New Jersey3.50 - 3.82
Raspberry Jam2.87 - 3.17
Razor Clams6.2
Razor shell (sea asparagus)6
Rattan, Thailand5.20
Red Ginseng5.5
Red Pepper Relish3.10 - 3.62
Rhubarb, California, stewed3.20 - 3.34
Rhubarb3.10 - 3.40
Rhubarb, Canned3.4
Rice, Brown6.20 - 6.80
Rice, Krispies5.40 - 5.73
Rice, White6.00 - 6.70
Rice, Wild6.00 - 6.50
Rolls, white5.46 - 5.52
Romaine5.78 - 6.06
Salmon, fresh, boiled5.85 - 6.50
Salmon, fresh, broiled5.36 - 6.40
Salmon, Red Alaska, canned6.07 - 6.16
Sardines5.70 - 6.60
Sardine, Portuguese, in olive oil5.42 - 5.93
Satay sauce5
Sauce, Enchilada5.50
Sauce, Fish4.93 - 5.02
Sauce, Shrimp7.01 - 7.27
Sauerkraut3.30 - 3.60
Scallion6.20
Scallop6
Scotch Broth.5.92
Sea Snail (Top shell)6
Shad Roe, sauted5.70 - 5.90
Shallots, cooked5.30 - 5.70
Sherbet, raspberry3.69
Sherry-wine3.37
Shredded Ralston5.32 - 5.60
Shredded Wheat6.05 - 6.49
Shrimp6.50 - 7.00
Shrimp Paste5.00 - 6.77
Smelts, Sauted6.67 - 6.90
Soda Crackers5.65 - 7.32
Soup, Broccoli Cheese Suop, condensed5.60
Soup, Chicken Broth, rts.5.8
Soup, Corn Soup, condensed6.8
Soup, Cream of celery Saoup, condensed6.20
Soup, Cream of Mushroom, condensed6.00 - 6.20
Soup, Cream style corn, condensed5.70 - 5.80
Soup, Cream of Potato soup, condensed5.80
Soup, Cream of shrimp soup, condensed5.8
Soup, Minestronen condensed5.4
Soup, New England Clam Chowder,condensed6.00
Soup, Oyster Stew, condensed6.30
Soup, Tomato Rice Soup, condensed5.50
Soup, Soy infant formula6.60 - 7.00
Soy Sauce4.40 - 5.40
Soy bean curd (tofu)7.2
Soybean milk7
Spaghetti, cooked5.97 - 6.40
Spinach5.50 - 6.80
Spinach, chopped5.38 - 5.52
Spinach, cooked6.60 - 7.18
Spinach, frozen, cooked6.30 - 6.52
Spinach, pureed5.50 - 6.22
Spinach, strained5.63 - 5.79
Squash, acorn, cooked5.18 - 6.49
Squash, Kubbard, cooked6.00 - 6.20
Squash, white, cooked5.52 - 5.80
Squash, yellow, cooked5.79 - 6.00
Squid6.00 - 6.50
Sturgeon6.2
Strawberries3.00 - 3.90
Strawberries, California3.32 - 3.50
Strawberries, frozen3.21 - 3.32
Strawberry Jam3.00 - 3.40
Straw mushroom4.9
Sweet Potatoes5.30 - 5.60
Swiss Chard, cooked6.17 - 6.78
Tamarind3.00
Tangerine3.32 - 4.48
Taro syrup4.5
Tea7.2
Three-Bean Salad5.4
Tofu (soybean Curd)7.2
Tomatillo (resembling Cherry tomatoes)3.83
Tomatoes4.30 - 4.90
Tomatoes, canned3.50 - 4.70
Tomatoes, Juice4.10 - 4.60
Tomatoes, Paste3.50 - 4.70
Tomatoes, Puree4.30 - 4.47
Tomatoes, Strained4.32 - 4.58
Tomatoes, Wine ripened4.42 - 4.65
Tomato Soup, Cream of, canned4.62
Trout, Sea, sauted6.20 - 6.33
Truffle5.30 - 6.50
Tuna Fish, canned5.90 - 6.20
Turnips5.29 - 5.90
Turnip, greens, cooked5.40 - 6.20
Turnip, white, cooked5.76 - 5.85
Turnip, yellow, cooked5.57 - 5.82
Vegetable Juice3.90 - 4.30
Vegetable soup, canned5.16
Vegetable soup, chopped4.98 - 5.02
Vegetable soup, strained4.99 - 5.00
Vermicelli, cooked5.80 - 6.50
Vinegar2.40 - 3.40
Vinegar, cider3.1
Walnuts, English5.42
Wax gourd drink7.2
Water Chestnut6.00 - 6.20
Watercress5.88 - 6.18
Watermelon5.18 - 5.60
Wheat Krispice4.99 - 5.62
Wheatnena5.85 - 6.08
Wheaties5.00 - 5.12
Worcestershire sauce3.63 - 4.00
Yams, cooked5.50 - 6.81
Yeast5.65
Yangsberries, frozen3.00 - 3.70
Zucchini, cooked5.69 - 6.10
Zwiebach4.84 - 4.94

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