学术界一般用Potential renal acid loads (PRALs)来衡量。这里有一篇文献，列出了常见食物的PRALs。数值越高的酸性越强。
来源：
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195546/
Potential renal acid loads (PRALs) of selected foods .
| Food or food group | PRAL mEq of: Cl + P04 + SO4 − Na − K − Ca − Mg |
|---|---|
| Dairy | |
| Parmesan cheese | 34.2 |
| Processed cheese plain | 28.7 |
| Cheddar reduced fat | 26.4 |
| Hard cheese (average) | 19.2 |
| Fresh cheese (quark) | 11.3 |
| Cottage cheese plain | 8.7 |
| Yogurt whole milk | 1.5 |
| Ice Cream | 0.8 |
| Whole milk | 0.7 |
| Buttermilk | 0.5 |
| Eggs | |
| Eggs yolk | 23.4 |
| Eggs white | 1.1 |
| Eggs chicken whole | 8.2 |
| Meats | |
| Corned beef | 13.2 |
| Luncheon meat canned | 10.2 |
| Turkey | 9.9 |
| Veal | 9.0 |
| Lean beef | 7.8 |
| Frankfurters | 6.7 |
| Sugars | |
| Sugar white | −0.1 |
| Honey | −0.3 |
| Vegetables | |
| Cucumber | −0.8 |
| Broccoli | −1.2 |
| Tomato | −3.1 |
| Eggplant | −3.4 |
| Celery | −5.2 |
| Spinach | −14.0 |
| Fats and Oils | |
| Butter | 0.6 |
| Margarine | −0.5 |
| Olive oil | 0.0 |
| Fruits and nuts and fruit juices | |
| Peanuts | 8.3 |
| Walnuts | 6.8 |
| Grape juice unsweetened | −1.0 |
| Orange juice unsweetened | −2.9 |
| Apples or apple juice unsweetened | −2.2 |
| Apricots | −4.8 |
| Banana | −5.5 |
| Black currents | −6.5 |
| Raisins | −21.0 |
| Grains and grain products | |
| Brown Rice | 12.5 |
| Rolled Oats | 10.7 |
| Spaghetti whole meal | 7.3 |
| Spaghetti white | 6.5 |
| Cornflakes | 6.0 |
| Rice white | 4.6 |
| Bread rye flower | 4.1 |
| Bread whole wheat | 1.8 |
| Legumes | |
| Lentils green and brown | 3.5 |
| Green beans | −3.1 |
| Fish | |
| Trout brown | 10.8 |
| Cod fillets | 7.1 |
| Beverages | |
| Beer pale | 0.9 |
| Coca-Cola | 0.4 |
| Beer draft | −0.2 |
| Wine white | −1.2 |
| Coffee infusion | −1.4 |
| Wine red | −2.4 |
