Avoiding foods, drinks or household products that contain citric acid is no easy task. Citric acid is an organic acid that is used as a preservative and flavoring for food and drinks as well as in many household goods, such as shampoos, cleaners and laundry detergents. People suffering from a citric acid allergy must avoid these types of products. Though many drinks on the market contain citric acid, some are free from this weak organic acid.
Most varieties of pure, all-natural green tea contain no added citric acid, according to the Green-Tea-Expert website. However, specialty varieties of green tea—such as lemon-flavored—do contain added citric acid, so it's important to check the nutritional label in this case.
Some varieties of root beer do not contain citric acid, such as Mug Root Beer, according to the website LiveScience. This is not true for all root beer brands, such as Barq's Root Beer. Overall, the pH level of root beer is among the least acidic when compared to other popular types of soda, according to a study conducted by the Academy of General Dentistry and published in the journal General Dentistry.
Pure water—not the flavored varieties—contains no citric acid. It is also an essential component for good health, so it should be your drink of choice more often than not. Flavored waters do contain citric acid for flavoring purposes.
A homemade blueberry smoothie, or iced drink, is a healthy and refreshing drink that can be tolerated by those with a citric acid allergy. Blueberries are among the only types of berries that are free of citric acid, according to according to Vicky Clarke's Citric Acid Intolerance website.
Many varieties of light and regular beer contain no citric acid, according to tests conducted by the Food Standards Australia New Zealand website. This may not be true; however, for varieties of beer that contain lemon, orange or other citrus flavoring.
The health benefits of red wine are well-documented. For instance, a study conducted by the National Cancer Institute found that the antioxidants in red wine may slow the development of certain types of cancer. Many types of red wines also do not contain any citric acid, according to tests conducted by the Food Standards Australia New Zealand website.
Certain types of cola soda, such as Coca-Cola, do not contain citric acid, according to research conducted by the Food Standards Australia New Zealand website. However, the same can't be said for Pepsi, which does contain small amounts of the organic acid.