Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
How the form changes the number: preparation is the real variable across this family. Boiling leaches a meaningful share of soluble oxalate into the cooking water — commonly 30-50% for plant foods — while raw and dry-heat forms keep essentially all of it, so the same base food can land in different brackets depending on how it is cooked. This page tracks Apple Variety at 2 mg per serving, in the middle of the family range. Related forms in this family: Red delicious Apple (1 mg), Apple Puree Apple (5 mg), Granny smith Apple (1 mg).
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 1 medium | 138 g | 2 mg | Low Oxalate |
| 2 x 1 medium | 276 g | 4 mg | Low Oxalate |
| ½ x 1 medium | 69 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
Can I eat Apple with kidney stones?
Don't overthink this one. Apple has 2 mg oxalate per 1 medium. That's solidly safe territory for kidney stones. The number is from Harvard's latest lab work.
What's the oxalate content of Apple?
Here are the numbers: 2 mg oxalate in one 1 medium of Apple (138g). Per 100 grams, that's 2 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.
Is Apple a high-oxalate food?
Nope. Apple is a low-oxalate food — just 2 mg per 1 medium. Well under the 25 mg cutoff. You're in the clear with this one.
What can I eat instead of Apple?
Look at the 'Safe Alternatives' section right below this FAQ. Those foods are all under 25 mg oxalate per serving and in the same category as Apple. Pick from those.
How much sodium does Apple have?
The sodium level is fine — 135 mg/100g. If all your foods looked like this on sodium, you'd be in great shape for stone prevention.