Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 1 medium fruit | 91 g | 269 mg | Avoid |
| 2 x 1 medium fruit | 182 g | 538 mg | Avoid |
| ½ x 1 medium fruit | 45 g | 134.5 mg | Avoid |
🏷️ Tags
🔴 See all Fruits rated Avoid for kidney stones →
⚖️ Compare this food: · vs Apple · vs Pineapple →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Can I eat Star Fruit or Carambola with kidney stones?
Straight talk: Star Fruit or Carambola is high in oxalate. 269 mg per 1 medium fruit puts it firmly in the avoid zone (100+ mg). Kidney stone patients should limit this one. Harvard measured it, not us.
How much oxalate is in Star Fruit or Carambola?
The lab result: 269 mg per 1 medium fruit (91g serving). That's 295 mg per 100g. Harvard's ion chromatography analysis, 2024. Not crowdsourced, not estimated.
Is Star Fruit or Carambola low or high oxalate?
High. At 269 mg per 1 medium fruit, Star Fruit or Carambola is a high-oxalate food. Harvard's 2024 data puts this firmly in the avoid zone for stone formers.
What are the best low-oxalate alternatives to Star Fruit or Carambola?
Don't give up the whole category — just pick a safer member of it. The green foods in the related section all work as substitutes for Star Fruit or Carambola with a fraction of the oxalate.
Does boiling Star Fruit or Carambola reduce the oxalate?
Here's the cooking hack: boil Star Fruit or Carambola, discard the water. That's where the dissolved oxalate goes. Expect roughly 30-50% reduction. Steaming is a distant second place.
How reliable is the data for Star Fruit or Carambola?
The 269 mg oxalate figure is direct from Harvard's lab — measured, not estimated. The sodium/protein/calcium numbers aren't fully matched yet. When they are, we'll update.
Can I eat Star Fruit or Carambola if I pair it with dairy?
Eat Star Fruit or Carambola with calcium-rich food at the same meal. The calcium grabs oxalate in your digestive tract before your kidneys ever see it. Yogurt, cheese, or milk work. Calcium pills between meals don't.