Because oxalates are water soluble, they can be reduced by blanching, boiling, or steaming with the liquid discarded. Fermentation reduces oxalates. Cooking in milk or macerating in whey can also mitigate oxalate exposure.
Does frying remove oxalates?
Stir frying and pressure cooking with oil, spices and salts reduced total oxalate content by 23-42% on a dry matter basis [37].
Does cooking vegetables remove oxalate?
Boiling vegetables can reduce their oxalate content from 30% to almost 90%, depending on the vegetable ( 23 ). Drink plenty of water. Aim for a minimum of 2 liters daily. If you have kidney stones, drink enough to produce at least 2.5 liters of urine a day ( 8 ).
Does cooking break down oxalic acid?
Heat can break down oxalic acid which will allow the body to absorb higher amounts of vitamins, calcium, iron and fibre. However, many phytonutrients can get destroyed by the cooking process. In addition, water-soluble vitamins, such as vitamin C and B, can leach out during the cooking process.
Does boiling greens reduce oxalates?
The present data suggested that boiling was most effective in reducing soluble oxalate content of vegetables compared to steaming and baking (used only for potatoes). The loss of soluble oxalate was 30-87% for boiling and only 5-19% (not including spinach, green Swiss chard leaves, and carrots) for steaming.
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