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Is Cranberries Berries (Cranberries) Safe for Kidney Stones?

Yes — Cranberries Berries (Cranberries) is safe for most kidney stone patients. At 1 mg oxalate per 1/4 cup (40g), it's well under the 25 mg threshold that defines the safe zone. Harvard's 2024 lab analysis measured this directly, so the number is reliable.
✓ Lab-Verified Data Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.
1
mg oxalate
per serving
Food: Berries, Cranberries, dried
Serving: 1/4 cup (40 g)
Verdict: 🟢 Safe
Per 100g: 2 mg
Data: Harvard T.H. Chan SPH (2024)
💡 What This Means for Your Diet

Here's the takeaway: Cranberries Berries (Cranberries) earns a Safe rating (🟢) at 1 mg oxalate per serving. Being under 25 mg means it fits comfortably in everyday eating. Keep your usual habits — adequate fluids and calcium in meals — and Cranberries Berries (Cranberries) poses no special concern.

❓ Related Questions

Why does the safe threshold matter?

The 25 mg line is the reference point clinicians use to separate everyday foods from ones that need caution. Every value on this page traces back to Harvard's 2024 lab analysis, so the threshold is applied to measured data rather than estimates. For Cranberries Berries (Cranberries), the measured oxalate value is 1 mg per 1/4 cup (Safe).

Can I eat this food every day?

For Safe foods (under 25 mg/serving), daily use is generally fine. Caution and Avoid foods work better as occasional items — rotate them with safer options so no single high-oxalate food becomes a habit. For context, Cranberries Berries (Cranberries) measures 1 mg per 1/4 cup, rated Safe.

Where does the oxalate data come from?

The numbers come from Harvard T.H. Chan SPH's 2024 laboratory measurements, published through the OHF database. Direct lab analysis, which is why they're treated as the reference values for food oxalate. For context, Cranberries Berries (Cranberries) measures 1 mg per 1/4 cup, rated Safe.

Should I also check sodium and calcium?

Yes — kidney stone risk isn't just about oxalate. High sodium increases urinary calcium (a stone promoter). Adequate dietary calcium (from food, not supplements) actually binds oxalate in your gut. Check the food's full nutrition page for the complete picture. Cranberries Berries (Cranberries) comes in at 1 mg oxalate per 1/4 cup (Safe) in the measured database.

Cranberries Berries (Cranberries) full page 🟢 Safe foods Safe foods
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.