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
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

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