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

Garlic powder

🟢 Low Oxalate — Low Oxalate
1 mg oxalate / serving
Serving: 1 tsp (2 g) | Per 100 g: 50 mg
✓ Lab-Verified Data Oxalate values from Harvard T.H. Chan SPH Oxalate Database (2024), measured via ion chromatography. This site is a dietary reference tool, not a medical resource.

📊 Nutrition at a Glance

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

Reading spice numbers honestly: herbs and spices are measured per teaspoon, and a teaspoon of almost anything dried weighs 1-2 grams — so even a spice at a high per-100g concentration delivers a trivial oxalate load in the spoon most recipes use. The realistic way to use this table is for cooking frequency: a spice you shake daily deserves a lower number than one you toast twice a year. Garlic powder sits at 1 mg per teaspoon serving. Nearby entries in this category: Allspice (1 mg), Anise seed (1 mg), Basil (1 mg).

📏 Oxalate by Serving Size

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

🏷️ Tags

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

🟢 See all Vegetables rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Is Garlic powder safe for kidney stones?

Yep, you're good. Garlic powder clocks in at 1 mg oxalate per 1 tsp — way under the 25 mg cutoff. Eat it without the stress. Measured by Harvard, not guessed.

What's the oxalate content of Garlic powder?

The lab result: 1 mg per 1 tsp (2g serving). That's 50 mg per 100g. Harvard's ion chromatography analysis, 2024. Not crowdsourced, not estimated.

Is Garlic powder high in oxalates?

It's low. 1 mg per 1 tsp is well under the 25 mg danger line. Garlic powder is not the food you need to worry about.

What are the best low-oxalate alternatives to Garlic powder?

There are almost always safer swaps in the same food family. For Garlic powder, check the related foods section below — the green-marked ones are your best bets. All verified by Harvard (2024).

How reliable is the data for Garlic powder?

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.