🔴 High Oxalate + High Calcium
High oxalate foods that are also rich in calcium. Based on Harvard T.H. Chan SPH oxalate data (2024).
9 foods in this collection
Content reviewed by OxalateWatch editorial team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.
🍽️ Foods in This Collection
🔴 Swiss Chard
293 mg oxalate / serving
Avoid
🔴 Swiss Chard
237 mg oxalate / serving
Avoid
🔴 Swiss Chard
594 mg oxalate / serving
Avoid
🔴 Swiss Chard
420 mg oxalate / serving
Avoid
🔴 Flour
197 mg oxalate / serving
Avoid
🔴 Nuts
107 mg oxalate / serving
Avoid
🔴 Almonds =
165 mg oxalate / serving
Avoid
🔴 Seeds
114 mg oxalate / serving
Avoid
🔴 Crackers
115 mg oxalate / serving
Avoid
❓ Frequently Asked Questions
How many foods are in this category?
There are 9 foods in this category in our database, all with oxalate data from Harvard T.H. Chan SPH (2024).
Are these foods generally safe for kidney stones?
It depends on the specific food — even within a category, oxalate levels vary widely. Some are very safe, others need caution. Check individual food pages for specific numbers.
How should I prepare these foods?
Preparation method matters. Boiling and draining can reduce oxalate in many vegetables. Steaming and roasting have less effect. Check individual food pages for specific tips.
What's the lowest-oxalate option in this category?
Browse the list below — the cards show oxalate per serving for each food. Safe foods (🟢) are your best bets.
This is dietary reference information, NOT medical advice. Talk to your doctor or a registered dietitian before changing your diet. Oxalate tolerance varies by person, stone type, and medication.