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

Maple Syrup, pure

🟢 Safe — Low Oxalate
1 mg oxalate / serving
Serving: 1 tbsp (20 g) | Per 100 g: 3 mg
✓ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

Maple syrup is low in oxalate at 1 mg per tablespoon — essentially zero. Like honey, the oxalate isn't the concern here — sugar is. Pure maple syrup contains some minerals (manganese, zinc) that table sugar doesn't, but the quantities are small. Use it as an occasional sweetener on pancakes, in oatmeal, or in baking. The 'pancake syrup' imposters made from corn syrup are cheaper but nutritionally empty. Pure maple syrup is the better choice, but both are low oxalate.

📊 Nutrition at a Glance

1 mg
Oxalate / serving
Low Oxalate
9 mg
Sodium / 100g
Low Na
0.0 g
Protein / 100g
Tier 1
109 mg
Calcium / 100g
Tier 1

📏 Oxalate by Serving Size

ServingWeightOxalateVerdict
1 tbsp20 g1 mg Safe
2 x 1 tbsp40 g2 mg Safe
½ x 1 tbsp10 g0.5 mg Safe

🏷️ Tags

Condiments 🟢 Oxalate Safe Low Oxalate Calcium-Rich

🟢 See all Condiments rated Safe for kidney stones →

⚖️ Compare this food: · vs Sorrel · vs Condiments

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❓ Frequently Asked Questions

Can I eat Maple Syrup with kidney stones?

No red flags here. Just 1 mg per 1 tbsp — well below the 25 mg danger line. You can keep Maple Syrup in your regular rotation. Data comes from Harvard (2024).

How much oxalate is in Maple Syrup?

Here are the numbers: 1 mg oxalate in one 1 tbsp of Maple Syrup (20g). Per 100 grams, that's 3 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.

Is Maple Syrup high in oxalates?

Definitely low. 1 mg oxalate per 1 tbsp. That's the green zone. No restrictions needed for this food.

What can I eat instead of Maple Syrup?

Substitutes exist. The safe alternatives listed below are all low-oxalate foods in the same family as Maple Syrup. Grab one of those and you dodge the oxalate while keeping similar flavors.

How much sodium does Maple Syrup have?

9 mg sodium per 100g in Maple Syrup. Well under the 460 mg threshold. One less thing on your kidney stone checklist.

🔍 Explore More About This Food

📚 Data Sources

Oxalate: Harvard T.H. Chan School of Public Health (2024) via OHF. Nutrition: USDA FoodData Central (SR Legacy 2018 & Foundation Foods).

📖 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.