🟢 Safe
Oxalate <25 mg/serving
🟡 Caution
Oxalate 25-99 mg/serving
🔴 Avoid
Oxalate ≥100 mg/serving
🟢

Grouper, cooked

🟢 Safe — Low Oxalate
0 mg oxalate / serving
Serving: 3 oz (85 g) | Per 100 g: 0 mg
✓ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

📊 Nutrition at a Glance

0 mg
Oxalate / serving
Low Oxalate
Sodium / 100g
Pending
Protein / 100g
Pending
Calcium / 100g
Pending

📏 Low Animal Protein

Grouper 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

ServingWeightOxalateVerdict
3 oz85 g0 mg Safe
2 x 3 oz170 g0 mg Safe
½ x 3 oz42 g0 mg Safe

🏷️ Tags

Seafood 🟢 Oxalate Safe Low Oxalate Animal Protein

🟢 See all Seafood rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Grouper with kidney stones?

Safe pick. 0 mg oxalate per 3 oz means Grouper is comfortably in the green zone. Harvard's 2024 lab data says so. No need to track this one obsessively.

What's the oxalate content of Grouper?

The lab result: 0 mg per 3 oz (85g serving). That's 0 mg per 100g. Harvard's ion chromatography analysis, 2024. Not crowdsourced, not estimated.

Is Grouper high in oxalates?

It's low. 0 mg per 3 oz is well under the 25 mg danger line. Grouper is not the food you need to worry about.

What can I eat instead of Grouper?

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 Grouper. Pick from those.

How reliable is the data for Grouper?

The oxalate number for Grouper — 0 mg per serving — is from Harvard's 2024 lab analysis. That part is solid. The USDA nutrition data (sodium, protein, calcium) is still being matched — we'll update when it's available.

Does Grouper have a lot of animal protein?

It has animal protein, which increases kidney stone risk through uric acid and calcium in urine. Not a reason to eliminate it — just a reason to watch portions. AUA says about 3 oz per meal.

🔍 Explore More About This Food

📚 Data Sources

Oxalate: Harvard T.H. Chan School of Public Health (2024) via OHF.

📖 Key Scientific References

Taylor EN, Curhan GC. Oxalate intake and the risk for nephrolithiasis. J Am Soc Nephrol. 2007;18(7):2198-2204. PMID: 17538185
Borghi L, Schianchi T, Meschi T, et al. Comparison of two diets for the prevention of recurrent stones in idiopathic hypercalciuria. N Engl J Med. 2002;346(2):77-84. DOI: 10.1056/NEJMoa010369
Fink HA, Akornor JW, Garimella PS, et al. Diet, fluid, or supplements for secondary prevention of nephrolithiasis. Eur Urol. 2009;56(1):72-80. DOI: 10.1016/j.eururo.2009.03.031
Ferraro PM, Taylor EN, Gambaro G, Curhan GC. Dietary and lifestyle factors for primary prevention of nephrolithiasis. BMC Nephrol. 2020;21(1):267. PMID: 32652950
Pearle MS, Goldfarb DS, Assimos DG, et al. Medical management of kidney stones: AUA guideline. J Urol. 2014;192(2):316-324. DOI: 10.1016/j.juro.2014.05.006
Liebman M, Costa G. Effects of calcium and magnesium on urinary oxalate excretion after oxalate loads. J Urol. 2000;163(5):1565-1569. PMID: 10751889
Holmes RP, Assimos DG. The impact of dietary oxalate on kidney stone formation. Urol Res. 2004;32(5):311-316. DOI: 10.1007/s00240-004-0437-3
Lin BB, Lin ME, Huang RH, et al. Dietary treatment and fluid intake for prevention of recurrent calcium stones. PLoS One. 2021;16(4):e0250257. PMID: 33872340
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.