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

Anise seed

🟢 Safe — Low Oxalate
1 mg oxalate / serving
Serving: 1 tsp (2 g) | Per 100 g: 50 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

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

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 tsp2 g1 mg Safe
2 x 1 tsp4 g2 mg Safe
½ x 1 tsp1 g0.5 mg Safe

🏷️ Tags

Condiments 🟢 Oxalate Safe Low Oxalate Plant-Based Herbs & Spices

🟢 See all Condiments rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Is Anise seed safe for kidney stones?

Safe pick. 1 mg oxalate per 1 tsp means Anise seed 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 Anise seed?

1 mg — that's the oxalate in a standard 1 tsp of Anise seed. For the 100g comparison freaks: 50 mg. Source is Harvard's 2024 food analysis project.

Is Anise seed high in oxalates?

Nope. Anise seed is a low-oxalate food — just 1 mg per 1 tsp. Well under the 25 mg cutoff. You're in the clear with this one.

What are the best low-oxalate alternatives to Anise seed?

The easiest move: swap Anise seed for any 🟢 Safe food in the related foods grid. They're all under 25 mg per serving and verified by Harvard's 2024 data. Problem solved.

How reliable is the data for Anise seed?

Oxalate: very reliable (Harvard 2024 lab measurement). Other nutrients: still being matched to USDA data. The oxalate figure is what matters for a kidney stone decision, and that one's solid.

🔍 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.