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Is Juice Safe for Kidney Stones? (Safe)

Yes — Juice is safe for most kidney stone patients. At 23 mg oxalate per 1 cup (250g), 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.
✓ Medically Reviewed Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.
23
mg oxalate
per serving
Food: Juice, Vegetable, (tomato, carrot, celery, beets)
Serving: 1 cup (250 g)
Verdict: 🟢 Safe
Per 100g: 9 mg
Data: Harvard T.H. Chan SPH (2024)
🔄 Lower-Oxalate Alternatives
🟢 Garlic
0 mg / serving
🟢 Seaweed
0 mg / serving
🟢 Seaweed
0 mg / serving
🟢 Passion Fruit or Granadilla
0 mg / serving
💡 What This Means for Your Diet

What this means: Juice is rated Safe (🟢). At 23 mg oxalate per serving, it's well under the 25 mg safety threshold. You can include it regularly in a kidney stone diet. Pair it with calcium-rich foods (dairy, fortified plant milks) for additional protection, and drink plenty of water throughout the day.

📊 How Juice Compares

Among vegetables, Juice sits below the category average of 27 mg. For context, 219 out of 271 vegetables (80%) are rated 🟢 Safe (under 25 mg oxalate/serving). The average vegetables in our database has 27 mg oxalate per serving — which means Juice is 15% below the category norm. Within its specific category, Juice ranks near the middle of the pack. This context matters because two 'Safe' foods can have very different oxalate levels — one might have 5 mg while another has 24 mg. Both are Safe, but the first gives you more dietary flexibility. Browse all vegetables rated Safe to compare within the same verdict level.

❓ Related Questions

Why does the safe threshold matter?

The 25 mg per serving threshold is based on clinical guidance for kidney stone patients. Harvard's lab data (2024) provides the most reliable oxalate measurements available — no database estimates, direct lab analysis.

Can I eat this food every day?

If it's in the Safe zone (under 25 mg/serving), yes — it can be a regular part of your diet. For Caution or Avoid foods, frequency matters. Rotate them with lower-oxalate options throughout the week.

Where does the oxalate data come from?

Harvard T.H. Chan School of Public Health (2024) via the OHF database. These are direct laboratory measurements — the most reliable oxalate data available for food.

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.

Juice 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.