"Excess oxalates" refers to having too much oxalic acid in the body. Oxalic acid is a substance found in certain foods that could form crystals and lead to health problems, such as kidney stones. Full definition
If you stop eating all high oxalate foods at once you may experience your symptoms worsen due to dumping of excess oxalate. (nourishholisticnutrition.com)
The company's therapeutic aims to turn off the enzyme that creates all the excess oxalate. (scientificamerican.com)
If you have excess oxalates, you may have to increase your intake of calcium, magnesium and zinc. (westonaprice.org)