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Food Acidity ranges
| Acidity | Description |
| 0 to 3.6 | Very acid - very bad for heartburn |
| 3.6 to 4.5 | Mildly acid - may or may not cause heartburn |
| 4.5 or higher | Not 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
Click to Browse an Entire Food Acidity List
| Item |
Approximate pH |
| Salmon, fresh, boiled | 5.85 - 6.50 | | Salmon, fresh, broiled | 5.36 - 6.40 | | Salmon, Red Alaska, canned | 6.07 - 6.16 | | Sardines | 5.70 - 6.60 | | Sardine, Portuguese, in olive oil | 5.42 - 5.93 | | Satay sauce | 5 | | Sauce, Enchilada | 5.50 | | Sauce, Fish | 4.93 - 5.02 | | Sauce, Shrimp | 7.01 - 7.27 | | Sauerkraut | 3.30 - 3.60 | | Scallion | 6.20 | | Scallop | 6 | | Scotch Broth. | 5.92 | | Sea Snail (Top shell) | 6 | | Shad Roe, sauted | 5.70 - 5.90 | | Shallots, cooked | 5.30 - 5.70 | | Sherbet, raspberry | 3.69 | | Sherry-wine | 3.37 | | Shredded Ralston | 5.32 - 5.60 | | Shredded Wheat | 6.05 - 6.49 | | Shrimp | 6.50 - 7.00 | | Shrimp Paste | 5.00 - 6.77 | | Smelts, Sauted | 6.67 - 6.90 | | Soda Crackers | 5.65 - 7.32 | | Soup, Broccoli Cheese Suop, condensed | 5.60 | | Soup, Chicken Broth, rts. | 5.8 | | Soup, Corn Soup, condensed | 6.8 | | Soup, Cream of celery Saoup, condensed | 6.20 | | Soup, Cream of Mushroom, condensed | 6.00 - 6.20 | | Soup, Cream style corn, condensed | 5.70 - 5.80 | | Soup, Cream of Potato soup, condensed | 5.80 | | Soup, Cream of shrimp soup, condensed | 5.8 | | Soup, Minestronen condensed | 5.4 | | Soup, New England Clam Chowder,condensed | 6.00 | | Soup, Oyster Stew, condensed | 6.30 | | Soup, Tomato Rice Soup, condensed | 5.50 | | Soup, Soy infant formula | 6.60 - 7.00 | | Soy Sauce | 4.40 - 5.40 | | Soy bean curd (tofu) | 7.2 | | Soybean milk | 7 | | Spaghetti, cooked | 5.97 - 6.40 | | Spinach | 5.50 - 6.80 | | Spinach, chopped | 5.38 - 5.52 | | Spinach, cooked | 6.60 - 7.18 | | Spinach, frozen, cooked | 6.30 - 6.52 | | Spinach, pureed | 5.50 - 6.22 | | Spinach, strained | 5.63 - 5.79 | | Squash, acorn, cooked | 5.18 - 6.49 | | Squash, Kubbard, cooked | 6.00 - 6.20 | | Squash, white, cooked | 5.52 - 5.80 | | Squash, yellow, cooked | 5.79 - 6.00 | | Squid | 6.00 - 6.50 | | Sturgeon | 6.2 | | Strawberries | 3.00 - 3.90 | | Strawberries, California | 3.32 - 3.50 | | Strawberries, frozen | 3.21 - 3.32 | | Strawberry Jam | 3.00 - 3.40 | | Straw mushroom | 4.9 | | Sweet Potatoes | 5.30 - 5.60 | | Swiss Chard, cooked | 6.17 - 6.78 |
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