Oxalate <25 mg/serving
Oxalate 25-99 mg/serving
Oxalate ≥100 mg/serving
📊 Nutrition at a Glance
📏 Low Animal Protein
Flounder contains animal protein (about 0g per 100g). The AUA recommends limiting non-dairy animal protein to 3 oz (palm-sized) per meal. Reference guide, not an official standard.
📏 Oxalate by Serving Size
| Serving | Weight | Oxalate | Verdict |
|---|---|---|---|
| 3 oz | 85 g | 0 mg | Safe |
| 2 x 3 oz | 170 g | 0 mg | Safe |
| ½ x 3 oz | 42 g | 0 mg | Safe |
🏷️ Tags
🟢 See all Seafood rated Safe for kidney stones →
🔗 Related Foods
🟢 Safe alternatives (recommended)
❓ Frequently Asked Questions
Is Flounder safe for kidney stones?
Don't overthink this one. Flounder has 0 mg oxalate per 3 oz. That's solidly safe territory for kidney stones. The number is from Harvard's latest lab work.
What's the oxalate content of Flounder?
One 3 oz of Flounder = 0 mg oxalate. Scale it up to 100g and you're at 0 mg. Direct measurement from Harvard, 2024. About as reliable as food data gets.
Is Flounder a high-oxalate food?
Nope. Flounder is a low-oxalate food — just 0 mg per 3 oz. Well under the 25 mg cutoff. You're in the clear with this one.
What can I eat instead of Flounder?
Substitutes exist. The safe alternatives listed below are all low-oxalate foods in the same family as Flounder. Grab one of those and you dodge the oxalate while keeping similar flavors.
Does Flounder have a lot of animal protein?
Animal protein alert: Flounder contributes to your daily animal protein load. The connection to stones is real (higher uric acid, lower citrate). Moderation = ~3 oz per meal, not the whole plate.
How reliable is the data for Flounder?
The 0 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.