Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 6/24/2025

Nutritional Considerations for Cashew Consumption

Oxalic Acid Content and Kidney Stone Risk

  • Cashews are not among the highest sources of oxalic acid, according to The Lancet Planetary Health guidelines 1
  • Individuals with calcium oxalate kidney stones or hyperoxaluria should limit or moderate their consumption of cashews, as they are considered a moderate oxalate food, with lower calcium absorption rates compared to low oxalate alternatives, as recommended by Kidney International guidelines 1, 2
  • Moderate oxalate foods like cashews should be consumed in moderation by those with calcium oxalate kidney stones or hyperoxaluria, due to their potential to increase kidney stone risk 1, 2

Allergenic Properties and Safety

  • Cashews are a known allergen that can cause severe reactions in some individuals 3
  • Cashew allergies can be transferred through organ transplantation, highlighting their potent allergenic properties 4

Food Processing and Nutritional Effects

  • High-temperature cooking methods like roasting can increase Advanced Glycosylation End (AGE) formation in cashews, while water-based cooking methods and shorter cooking times at lower temperatures produce fewer AGEs 5
  • Roasting cashews can cause changes to nut lipids and phytochemicals, generating AGEs through the Maillard reaction 5
  • Note: Histamine intolerance symptoms and management are not directly related to cashew consumption, but rather a broader dietary consideration 6, 7