Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
The form here is the concentrated one, and that matters for reading the table: dehydration and grinding reduce water weight, so oxalate per standard serving rises relative to the fresh version of the same base food. Prunes (Dried) lands at 2 mg per serving, at the low end of the family across the family's measured range. Related forms in this family: Prunes (Pitted) (30 mg).
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 5 prunes | 42 g | 2 mg | Low Oxalate |
| 2 x 5 prunes | 84 g | 4 mg | Low Oxalate |
| ½ x 5 prunes | 21 g | 1 mg | Low Oxalate |
🏷️ Tags
🟢 See all Fruits rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Should I avoid Prunes if I have kidney stones?
Yep, you're good. Prunes clocks in at 2 mg oxalate per 5 prunes — way under the 25 mg cutoff. Eat it without the stress. Measured by Harvard, not guessed.
What's the oxalate content of Prunes?
The lab result: 2 mg per 5 prunes (42g serving). That's 4.8 mg per 100g. Harvard's ion chromatography analysis, 2024. Not crowdsourced, not estimated.
Is Prunes low or high oxalate?
Definitely low. 2 mg oxalate per 5 prunes. That's the green zone. No restrictions needed for this food.
What are the best low-oxalate alternatives to Prunes?
Substitutes exist. The safe alternatives listed below are all low-oxalate foods in the same family as Prunes. Grab one of those and you dodge the oxalate while keeping similar flavors.
How reliable is the data for Prunes?
The oxalate number for Prunes — 2 mg per serving — is from Harvard's 2024 lab analysis. That part is solid. The USDA nutrition data (sodium, protein, calcium) is still being matched — we'll update when it's available.