Eating an alkalinizing diet promotes a more alkaline balance in the tissues of the body and in the urine. I have virtually eliminated my urethral syndrome pain by maintaining alkaline urine through taking mineral supplements and eating an alkaline diet.
There is much conflicting information available about which foods are acid-forming and which foods are alkalinizing. I have found the most helpful approach to be the one put forward by Thomas Remer, PhD, and Friedrich Manz, MD in their article entitled "Potential renal acid load of foods and its influence on urine pH", published in the Journal of the American Dietetic Association in 1995, 95:791-797.
A summary of their article follows: Foods that are alkalinizing have relatively high concentrations of the minerals sodium, potassium, calcium and magnesium and low concentrations of proteins and the minerals phosphorous and chloride. Remer and Manz used a measurement called PRAL which calculates a number based on a food's nutrient content. Acid-forming foods will have a positive PRAL value and alkalinizing foods will have a negative PRAL value. This system enables us to clearly see if a food has a mild, moderate or strong acid or alkaline influence.
Using their formula, most fruits and vegetables are alkalinizing. Meats, beans, cheeses and grains are acid-forming. Oils, sugar, salt, milk and yogurt are neutral or very close to neutral.
You can calculate the PRAL of a food by obtaining the nutrient breakdown of that food (I use this website: http://www.nal.usda.gov/fnic/foodcomp/search ) and applying the formula:
PRAL = (protein(g) x .4888) + (chloride(mg) x .0268) + (phosphorous(mg) x .0366) - (sodium(mg) x .0413) - (potassium(mg) x .0205) - (calcium(mg) x .0125) - (magnesium(mg) x .0263)
To make it easier, here is an interactive PRAL calculator. Click on the gray "Click to Edit" button at the top and then you can enter the nutritional values for a 100 gram portion of any food, and it will tell you whether the food is acid-forming or alkaline-forming:
The following food chart is reproduced from the article by Thomas Remer PhD and Friedrich Manz MD, "Potential renal acid load of foods and its influence on urine pH" referenced above. The chart lists common foods showing whether they are alkalinizing or acid-forming and their PRAL values. Negative PRAL values indicate foods that contribute to an alkaline balance in the body, positive PRAL values indicate foods that are acid-forming. A higher value has a stronger effect. I have color-coded each item for easy reference - blue means alkalinizing, gray means neutral, orange means acid-forming.
By eating more alkalinizing foods and less acid foods, your urine pH will become more alkaline.
| |
FOOD |
ENERGY |
PROTEIN |
SODIUM |
POTASSIUM |
CALCIUM |
MAGNESIUM |
PHOSPHOROUS |
CHLORIDE |
PRAL |
PRAL |
PRAL |
| |
(100 g edible portion) |
(kcal) |
(g) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
Alkaline |
Neutral |
Acid |
| |
BEVERAGES |
|
|
|
|
|
|
|
|
|
|
|
| |
Beer, draft |
32 |
0.3 |
12 |
38 |
11 |
9 |
13 |
32 |
|
-0.2 |
|
| |
Beer, pale |
45 |
0.5 |
5 |
38 |
4 |
9 |
28 |
35 |
|
0.9 |
|
| |
Beer, stout |
37 |
0.3 |
23 |
45 |
8 |
8 |
17 |
48 |
|
-0.1 |
|
| |
Coca-Cola |
39 |
0 |
8 |
1 |
4 |
1 |
15 |
10 |
|
0.4 |
|
| |
Cocoa, 2% milk |
57 |
3.5 |
70 |
170 |
120 |
20 |
100 |
100 |
|
-0.4 |
|
| |
Coffee |
2 |
0.2 |
0 |
66 |
2 |
6 |
2 |
0 |
-1.4 |
|
|
| |
Red wine |
68 |
0.2 |
10 |
130 |
7 |
11 |
14 |
18 |
-2.4 |
|
|
| |
Tea |
0 |
0.1 |
0 |
17 |
0 |
1 |
1 |
0 |
|
-0.3 |
|
| |
White wine |
66 |
0.1 |
4 |
61 |
9 |
8 |
6 |
10 |
-1.2 |
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FATS, OILS |
|
|
|
|
|
|
|
|
|
|
|
| |
Butter |
737 |
0.5 |
11 |
15 |
15 |
2 |
24 |
17 |
|
0.6 |
|
| |
Margarine |
739 |
0.2 |
800 |
5 |
4 |
1 |
12 |
1200 |
|
-0.5 |
|
| |
Olive Oil |
899 |
0.6 |
0 |
0 |
0 |
0 |
0 |
0 |
|
0.0 |
|
| |
Sunflower Oil |
899 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
|
0.0 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FISH |
|
|
|
|
|
|
|
|
|
|
|
| |
Cod, fillets |
76 |
17.4 |
77 |
320 |
16 |
23 |
170 |
110 |
|
|
7.1 |
| |
Haddock |
73 |
16.8 |
120 |
300 |
18 |
23 |
170 |
160 |
|
|
6.8 |
| |
Herring |
234 |
16.8 |
67 |
340 |
33 |
29 |
210 |
76 |
|
|
7.0 |
| |
Trout, brown, steamed |
136 |
23.5 |
88 |
370 |
36 |
31 |
270 |
70 |
|
|
10.8 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FOOD |
ENERGY |
PROTEIN |
SODIUM |
POTASSIUM |
CALCIUM |
MAGNESIUM |
PHOSPHOROUS |
CHLORIDE |
PRAL |
PRAL |
PRAL |
| |
(100 g edible portion) |
(kcal) |
(g) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
Alkaline |
Neutral |
Acid |
| |
FRUITS, JUICE, NUTS |
|
|
|
|
|
|
|
|
|
|
|
| |
Apple juice, unsweetened |
38 |
0.1 |
2 |
110 |
7 |
5 |
6 |
3 |
-2.2 |
|
|
| |
Apples |
47 |
0.4 |
3 |
120 |
4 |
5 |
11 |
0 |
-2.2 |
|
|
| |
Apricots |
31 |
0.9 |
2 |
270 |
15 |
11 |
20 |
3 |
-4.8 |
|
|
| |
Bananas |
95 |
1.2 |
1 |
400 |
6 |
34 |
28 |
79 |
-5.5 |
|
|
| |
Black currants |
28 |
0.9 |
3 |
370 |
60 |
17 |
43 |
15 |
-6.5 |
|
|
| |
Cherries |
48 |
0.9 |
1 |
210 |
13 |
10 |
21 |
0 |
-3.6 |
|
|
| |
Grape juice, unsweetened |
46 |
0.3 |
7 |
55 |
19 |
7 |
14 |
6 |
|
-1.0 |
|
| |
Hazelnuts |
650 |
14.1 |
6 |
730 |
140 |
160 |
300 |
18 |
-2.8 |
|
|
| |
Kiwi fruit |
49 |
1.1 |
4 |
290 |
25 |
15 |
32 |
39 |
-4.1 |
|
|
| |
Lemon juice |
7 |
0.3 |
1 |
130 |
7 |
7 |
8 |
3 |
-2.5 |
|
|
| |
Orange juice, unsweetened |
36 |
0.5 |
1 |
150 |
10 |
8 |
13 |
9 |
-2.9 |
|
|
| |
Oranges |
37 |
1.1 |
5 |
150 |
47 |
10 |
21 |
3 |
-2.7 |
|
|
| |
Peaches |
33 |
1 |
1 |
166 |
7 |
9 |
22 |
0 |
-2.4 |
|
|
| |
Peanuts, plain |
564 |
25.6 |
2 |
670 |
60 |
210 |
430 |
7 |
|
|
8.3 |
| |
Pears |
40 |
0.3 |
3 |
150 |
11 |
7 |
13 |
1 |
-2.9 |
|
|
| |
Pineapple |
41 |
0.4 |
2 |
160 |
18 |
16 |
1 |
29 |
-2.7 |
|
|
| |
Raisins |
272 |
2.1 |
60 |
1020 |
46 |
35 |
76 |
9 |
-21.0 |
|
|
| |
Strawberries |
27 |
0.8 |
6 |
160 |
16 |
10 |
24 |
18 |
-2.2 |
|
|
| |
Walnuts |
688 |
14.7 |
7 |
450 |
94 |
160 |
380 |
24 |
|
|
6.8 |
| |
Watermelon |
31 |
0.5 |
2 |
100 |
7 |
8 |
9 |
0 |
-1.9 |
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FOOD |
ENERGY |
PROTEIN |
SODIUM |
POTASSIUM |
CALCIUM |
MAGNESIUM |
PHOSPHOROUS |
CHLORIDE |
PRAL |
PRAL |
PRAL |
| |
(100 g edible portion) |
(kcal) |
(g) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
Alkaline |
Neutral |
Acid |
| |
GRAIN PRODUCTS |
|
|
|
|
|
|
|
|
|
|
|
| |
Bread, rye |
194 |
6.8 |
527 |
291 |
43 |
0 |
198 |
812 |
|
|
4.1 |
| |
Bread, whole wheat |
198 |
7 |
380 |
270 |
63 |
92 |
196 |
585 |
|
|
1.8 |
| |
Bread, white |
235 |
8.4 |
520 |
110 |
110 |
24 |
91 |
820 |
|
|
3.7 |
| |
Cornflakes |
360 |
7.9 |
1110 |
100 |
15 |
14 |
50 |
1820 |
|
|
6.0 |
| |
Crispbread, rye |
321 |
9.4 |
220 |
500 |
45 |
100 |
310 |
370 |
|
|
3.3 |
| |
Noodles, egg |
391 |
12.1 |
180 |
260 |
28 |
43 |
200 |
277 |
|
|
6.4 |
| |
Oat flakes, rolled oats |
355 |
12.5 |
5 |
335 |
54 |
139 |
391 |
61 |
|
|
10.7 |
| |
Rice, brown |
357 |
6.7 |
3 |
250 |
10 |
110 |
310 |
230 |
|
|
12.5 |
| |
Rice, white, easy cook |
383 |
7.3 |
4 |
150 |
51 |
32 |
150 |
10 |
|
|
4.6 |
| |
Rice, white, easy cook, boiled |
138 |
2.6 |
1 |
54 |
18 |
11 |
54 |
4 |
|
|
1.7 |
| |
Rye flour, whole |
335 |
8.2 |
1 |
410 |
32 |
92 |
360 |
0 |
|
|
5.9 |
| |
Spaghetti, white |
342 |
12 |
3 |
250 |
25 |
56 |
190 |
25 |
|
|
6.5 |
| |
Spaghetti, whole wheat |
324 |
13.4 |
130 |
390 |
31 |
120 |
330 |
210 |
|
|
7.3 |
| |
Wheat flour, white |
341 |
9.4 |
3 |
150 |
15 |
20 |
110 |
81 |
|
|
6.9 |
| |
Wheat flour, whole wheat |
310 |
12.7 |
3 |
340 |
38 |
120 |
320 |
38 |
|
|
8.2 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
LEGUMES |
|
|
|
|
|
|
|
|
|
|
|
| |
Beans, green |
24 |
1.9 |
0 |
230 |
36 |
17 |
38 |
9 |
-3.1 |
|
|
| |
Lentils, green & brown, dried |
297 |
24.3 |
12 |
940 |
71 |
110 |
350 |
87 |
|
|
3.5 |
| |
Peas |
83 |
6.9 |
1 |
330 |
21 |
34 |
130 |
39 |
|
|
1.2 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
MEAT |
|
|
|
|
|
|
|
|
|
|
|
| |
Beef, lean |
123 |
20.3 |
61 |
350 |
7 |
20 |
180 |
59 |
|
|
7.8 |
| |
Chicken, meat only |
121 |
20.5 |
81 |
320 |
10 |
25 |
200 |
78 |
|
|
8.7 |
| |
Corned beef, canned |
217 |
26.9 |
950 |
140 |
14 |
15 |
120 |
1430 |
|
|
13.2 |
| |
Frankfurters |
274 |
9.5 |
980 |
98 |
34 |
9 |
130 |
1509 |
|
|
6.7 |
| |
Liver sausage |
310 |
12.9 |
860 |
170 |
26 |
12 |
230 |
1324 |
|
|
10.6 |
| |
Luncheon meat, canned |
313 |
12.6 |
1050 |
140 |
15 |
8 |
200 |
1617 |
|
|
10.2 |
| |
Pork, lean |
147 |
20.7 |
76 |
370 |
8 |
22 |
200 |
71 |
|
|
7.9 |
| |
Rump steak |
197 |
18.9 |
51 |
330 |
6 |
20 |
210 |
49 |
|
|
8.8 |
| |
Salami |
491 |
19.3 |
1850 |
160 |
10 |
10 |
160 |
2849 |
|
|
11.6 |
| |
Turkey, meat only |
107 |
21.9 |
54 |
300 |
8 |
23 |
190 |
48 |
|
|
9.9 |
| |
Veal, fillet |
109 |
21.1 |
110 |
360 |
8 |
25 |
260 |
68 |
|
|
9.0 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FOOD |
ENERGY |
PROTEIN |
SODIUM |
POTASSIUM |
CALCIUM |
MAGNESIUM |
PHOSPHOROUS |
CHLORIDE |
PRAL |
PRAL |
PRAL |
| |
(100 g edible portion) |
(kcal) |
(g) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
Alkaline |
Neutral |
Acid |
| |
MILK, DAIRY & EGGS |
|
|
|
|
|
|
|
|
|
|
|
| |
Buttermilk |
39 |
3.5 |
57 |
147 |
109 |
16 |
90 |
100 |
|
0.5 |
|
| |
Camembert |
297 |
20.9 |
650 |
100 |
350 |
21 |
310 |
1001 |
|
|
14.6 |
| |
Cheddar cheese, low fat |
261 |
31.5 |
670 |
110 |
840 |
39 |
620 |
1110 |
|
|
26.4 |
| |
Cheese, gouda |
375 |
24 |
910 |
91 |
740 |
38 |
490 |
1440 |
|
|
18.6 |
| |
Cottage cheese, plain |
98 |
13.8 |
380 |
89 |
73 |
9 |
160 |
550 |
|
|
8.7 |
| |
Creams, fresh, sour |
205 |
2.9 |
41 |
110 |
93 |
10 |
81 |
81 |
|
|
1.2 |
| |
Eggs, chicken, whole |
147 |
12.5 |
140 |
130 |
57 |
12 |
200 |
160 |
|
|
8.2 |
| |
Eggs, white |
36 |
9 |
190 |
150 |
5 |
11 |
33 |
170 |
|
|
1.1 |
| |
Eggs, yolk |
339 |
16.1 |
50 |
120 |
130 |
15 |
500 |
140 |
|
|
23.4 |
| |
Fresh cheese (Quark) |
112 |
12.5 |
35 |
87 |
85 |
11 |
165 |
130 |
|
|
11.1 |
| |
Full-fat soft cheese |
313 |
8.6 |
330 |
150 |
110 |
9 |
130 |
508 |
|
|
4.3 |
| |
Hard cheese, average |
405 |
24.7 |
620 |
82 |
670 |
24 |
470 |
980 |
|
|
19.2 |
| |
Ice cream, vanilla |
194 |
3.6 |
69 |
160 |
130 |
13 |
110 |
110 |
|
0.6 |
|
| |
Milk, whole evaporated |
151 |
8.4 |
180 |
360 |
290 |
29 |
260 |
250 |
|
|
1.1 |
| |
Milk, whole pasteurized |
66 |
3.2 |
55 |
140 |
115 |
11 |
92 |
100 |
|
0.7 |
|
| |
Parmesan |
452 |
39.4 |
1090 |
110 |
1200 |
45 |
810 |
1820 |
|
|
34.2 |
| |
Processed cheese, plain |
330 |
20.8 |
1320 |
130 |
600 |
22 |
800 |
2033 |
|
|
28.7 |
| |
Yogurt, whole milk, fruit |
105 |
5.1 |
82 |
210 |
160 |
16 |
130 |
150 |
|
|
1.2 |
| |
Yogurt, whole milk, plain |
79 |
5.7 |
80 |
280 |
200 |
19 |
170 |
170 |
|
|
1.5 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
SUGAR, PRESERVES, SWEETS |
|
|
|
|
|
|
|
|
|
|
|
| |
Chocolates, milk |
529 |
8.4 |
120 |
420 |
220 |
55 |
240 |
270 |
|
|
2.4 |
| |
Honey |
288 |
0.4 |
11 |
51 |
5 |
2 |
17 |
18 |
|
-0.3 |
|
| |
Madeira cake |
393 |
5.4 |
380 |
120 |
42 |
12 |
120 |
585 |
|
|
3.7 |
| |
Marmalade |
261 |
0.1 |
18 |
44 |
35 |
4 |
13 |
7 |
-1.5 |
|
|
| |
Sugar, white |
409 |
0 |
0 |
2 |
2 |
0 |
0 |
0 |
|
-0.1 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
FOOD |
ENERGY |
PROTEIN |
SODIUM |
POTASSIUM |
CALCIUM |
MAGNESIUM |
PHOSPHOROUS |
CHLORIDE |
PRAL |
PRAL |
PRAL |
| |
(100 g edible portion) |
(kcal) |
(g) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
(mg) |
Alkaline |
Neutral |
Acid |
| |
VEGETABLES |
|
|
|
|
|
|
|
|
|
|
|
| |
Asparagus |
25 |
2.9 |
1 |
260 |
27 |
13 |
72 |
60 |
|
-0.4 |
|
| |
Broccoli, green |
33 |
4.4 |
8 |
370 |
56 |
22 |
87 |
100 |
-1.2 |
|
|
| |
Carrots, young |
30 |
0.7 |
40 |
240 |
34 |
9 |
25 |
39 |
-4.9 |
|
|
| |
Cauliflower |
34 |
3.6 |
9 |
380 |
21 |
17 |
64 |
28 |
-4.0 |
|
|
| |
Celery |
7 |
0.5 |
60 |
320 |
41 |
5 |
21 |
130 |
-5.2 |
|
|
| |
Chicory |
11 |
0.5 |
1 |
170 |
21 |
6 |
27 |
25 |
-2.0 |
|
|
| |
Cucumber |
10 |
0.7 |
3 |
140 |
18 |
8 |
49 |
17 |
|
-0.8 |
|
| |
Eggplant |
15 |
0.9 |
2 |
210 |
10 |
11 |
16 |
14 |
-3.4 |
|
|
| |
Leeks |
22 |
1.6 |
2 |
260 |
24 |
3 |
44 |
59 |
-1.8 |
|
|
| |
Lettuce, average of 4 kinds |
14 |
0.8 |
3 |
220 |
28 |
6 |
28 |
47 |
-2.5 |
|
|
| |
Lettuce, iceberg |
13 |
0.7 |
2 |
160 |
19 |
5 |
18 |
42 |
-1.6 |
|
|
| |
Mushrooms, common |
13 |
1.8 |
5 |
320 |
6 |
9 |
80 |
69 |
-1.4 |
|
|
| |
Onions |
36 |
1.2 |
3 |
160 |
25 |
4 |
30 |
25 |
-1.5 |
|
|
| |
Peppers, capsicum, green |
15 |
0.8 |
4 |
120 |
8 |
10 |
19 |
19 |
-1.4 |
|
|
| |
Potatoes, old |
75 |
2.1 |
7 |
360 |
5 |
17 |
37 |
66 |
-4.0 |
|
|
| |
Radish, red |
12 |
0.7 |
11 |
240 |
19 |
5 |
20 |
37 |
-3.7 |
|
|
| |
Spinach |
25 |
2.8 |
140 |
500 |
170 |
54 |
45 |
98 |
-14.0 |
|
|
| |
Tomato juice |
14 |
0.8 |
230 |
230 |
10 |
10 |
19 |
400 |
-2.8 |
|
|
| |
Tomatoes |
17 |
0.7 |
9 |
250 |
7 |
7 |
24 |
55 |
-3.1 |
|
|
| |
Zucchini |
18 |
1.8 |
1 |
360 |
25 |
22 |
45 |
45 |
-4.6 |
|
|
|
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|