Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
Avocado occupies an interesting niche: it's a health-halo food that everyone assumes is universally good. For oxalate, half an avocado contains about 7 mg — firmly in the Safe zone. A few slices on toast is perfectly fine. An entire large avocado might push 14-15 mg, which is still safe. The good news: avocado is rich in healthy monounsaturated fats and potassium. The watchpoint is what you eat it with — avocado toast on whole wheat bread doubles the oxalate, and guacamole eaten by the bowl with corn chips adds up. As with most borderline foods, portion does the work. Half an avocado = safe. A whole avocado = still safe. Don't overthink this one.
📊 Nutrition at a Glance
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 1/2 cup sliced | 73 g | 7 mg | Safe |
| 2 x 1/2 cup sliced | 146 g | 14 mg | Safe |
| ½ x 1/2 cup sliced | 36 g | 3.5 mg | Safe |
🏷️ Tags
🟢 See all Fruits rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
⚠️ Other foods in this category to watch
❓ Frequently Asked Questions
Should I avoid Avocado if I have kidney stones?
Yep, you're good. Avocado clocks in at 7 mg oxalate per 1/2 cup sliced — way under the 25 mg cutoff. Eat it without the stress. Measured by Harvard, not guessed.
What's the oxalate content of Avocado?
The exact figure: 7 mg of oxalate per 1/2 cup sliced of Avocado. Works out to 10 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.
Is Avocado a high-oxalate food?
It's low. 7 mg per 1/2 cup sliced is well under the 25 mg danger line. Avocado is not the food you need to worry about.
What can I eat instead of Avocado?
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 Avocado. Pick from those.
How much sodium does Avocado have?
Sodium's not the issue here. Avocado has 0 mg per 100g — comfortably low. No need to worry about salt pushing extra calcium into your urine with this food.