The following image shows the acidity level (pH level) of the most common foods. For a more detailed food list, please see the table below in which data can be sorted and particular foods searched using the search box in the top right corner.
Please note that the food acidity is a measurement of the actual food and not of the urine pH after consuming it.
What is the purpose of knowing which are high acid foods?
Consuming high acidic foods will not make the contents of your stomach more acidic, since the hydrochloric acid is more acidic than any foods you can eat (it has a pH of about 1 while the most acidic food, lemon, has a pH of 2).
Learning the acidity of foods is also useful for culinary purposes including: preservation, application as marinates of meats and seafood, different requirements of food preparation, cooking and storage.