Home › Compare › Juice, Bitter Gourd/Bitter Melon vs Tomato paste

🟢 Tomato paste VS 🟡 Juice, Bitter Gourd/Bitter Melon

The oxalate gap between these two is hard to ignore. Juice, Bitter Gourd/Bitter Melon at 68 mg per serving vs Tomato paste at 2 mg — 34x more. One is a daily option, the other requires careful consideration.

✓ Medically Reviewed Content reviewed by OxalateWatch editorial team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

⚖️ Head-to-Head Comparison

🟢
Tomato paste
Safe — Low Oxalate
2 mg oxalate / serving
Serving: 2 tbsp (33 g)
Per 100 g: 0 mg oxalate
Sodium: — | Calcium: — | Protein: —
🟡
Juice, Bitter Gourd/Bitter Melon
Caution — Moderate Oxalate
68 mg oxalate / serving
Serving: 1 cup (250 g)
Per 100 g: 27 mg oxalate
Sodium: 10 mg/100g | Calcium: 16 mg/100g | Protein: 0.4 g/100g

🏆 The Verdict: Choose Tomato paste

At 2 mg oxalate per serving (rated Safe), Tomato paste is the clear winner over Juice, Bitter Gourd/Bitter Melon (68 mg, Caution). The 34x difference comes from Harvard's 2024 lab measurements — this isn't an estimate or guess. Build your meals around Tomato paste and use Juice, Bitter Gourd/Bitter Melon sparingly, if at all.

🔍 Key Takeaways

**Oxalate gap:** 68 mg vs 2 mg per serving — a 34x difference. One of these is significantly easier to fit into a kidney stone diet.
**Verdicts:** Juice, Bitter Gourd/Bitter Melon is rated **Caution (25-99 mg/serving)**; Tomato paste is rated **Safe (under 25 mg/serving)**.
**Serving strategy:** If you choose Juice, Bitter Gourd/Bitter Melon, consider a half portion or pair it with a calcium source. Tomato paste can be eaten more freely.
**Cooking tip:** For either vegetable, boiling and discarding the cooking water can reduce soluble oxalate by 30-50%. Steaming or eating raw preserves more oxalate.

❓ Frequently Asked Questions

Which is better for kidney stones — Juice, Bitter Gourd/Bitter Melon or Tomato paste?

Tomato paste is the clear winner. At 2 mg oxalate per serving, it's rated Safe — compared to Juice, Bitter Gourd/Bitter Melon's 68 mg. That's a 34x difference. If you're managing kidney stones, Tomato paste is the safer everyday choice. But Juice, Bitter Gourd/Bitter Melon isn't permanently off-limits — just be aware of portions and frequency.

Can I eat Juice, Bitter Gourd/Bitter Melon and Tomato paste together?

Yes, but watch your portions. Combined, you're looking at roughly 70 mg oxalate. If one is high-oxalate, keep it to a small side portion. The lower-oxalate food can fill most of your plate.

How should I prepare Juice, Bitter Gourd/Bitter Melon vs Tomato paste differently?

Key difference: Juice, Bitter Gourd/Bitter Melon benefits significantly from boiling (discard the water!) — that can reduce oxalate by 30-50%. Tomato paste doesn't need special prep since its oxalate is already low. Roasting, steaming, or eating raw are all fine for the low-oxalate option.

What are good substitutes if I want to avoid Juice, Bitter Gourd/Bitter Melon?

Tomato paste is the #1 substitute in the same category. Beyond that, look for foods with the 🟢 Safe rating in the Vegetables category — they're all under 25 mg oxalate per serving and verified by Harvard (2024).

Browse all Vegetables 🟢 Low Oxalate Foods Tomato paste page Juice, Bitter Gourd/Bitter Melon page
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.