Is Crackers Safe for Kidney Stones? | Safe

Q: Can I eat Crackers with kidney stones?

No red flags here. Just 4 mg per — well below the 25 mg danger line. You can keep Crackers in your regular rotation. Data comes from Harvard (2024).

Q: What's the oxalate content of Crackers?

Here are the numbers: 4 mg oxalate in one of Crackers (16g). Per 100 grams, that's 0 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.

Q: Is Crackers low or high oxalate?

Nope. Crackers is a low-oxalate food — just 4 mg per . Well under the 25 mg cutoff. You're in the clear with this one.

Q: What can I eat instead of Crackers?

Don't give up the whole category — just pick a safer member of it. The green foods in the related section all work as substitutes for Crackers with a fraction of the oxalate.

Q: Is Crackers high in sodium?

635 mg sodium per 100g — that's elevated. For kidney stone patients, sodium is a sneaky risk factor. It increases urinary calcium. Watch this one.

🟢 Safe
Oxalate <25 mg/serving

🟡 Caution
Oxalate 25-99 mg/serving

🔴 Avoid
Oxalate ≥100 mg/serving

✓ 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

4 mg

Oxalate / serving

Low Oxalate

635 mg

Sodium / 100g

High Na

14.1 g

Protein / 100g

Tier 1

33 mg

Calcium / 100g

Tier 1

🚨 High Sodium Alert

Crackers contains 635 mg sodium per 100g — well above the recommended limit for kidney stone patients. High sodium intake can increase calcium in urine, raising stone risk.

📏 Oxalate by Serving Size

Serving	Weight	Oxalate	Verdict
	16 g	4 mg	Safe
2 x	32 g	8 mg	Safe
½ x	8 g	2 mg	Safe

🏷️ Tags

🟢 See all Grains & Pasta rated Safe for kidney stones →

🔗 Related Foods

❓ Frequently Asked Questions

Can I eat Crackers with kidney stones?

No red flags here. Just 4 mg per — well below the 25 mg danger line. You can keep Crackers in your regular rotation. Data comes from Harvard (2024).

What's the oxalate content of Crackers?

Here are the numbers: 4 mg oxalate in one of Crackers (16g). Per 100 grams, that's 0 mg. Harvard T.H. Chan SPH did the lab work (2024) — these aren't database guesses.

Is Crackers low or high oxalate?

Nope. Crackers is a low-oxalate food — just 4 mg per . Well under the 25 mg cutoff. You're in the clear with this one.

What can I eat instead of Crackers?

Don't give up the whole category — just pick a safer member of it. The green foods in the related section all work as substitutes for Crackers with a fraction of the oxalate.

Is Crackers high in sodium?

635 mg sodium per 100g — that's elevated. For kidney stone patients, sodium is a sneaky risk factor. It increases urinary calcium. Watch this one.

🔍 Explore More About This Food

🟢See our detailed safety analysis for this food 📊Exact oxalate numbers: how much is in a serving 📋Low, moderate, or high oxalate? Full breakdown 🧂How much sodium? Kidney stone risk check

📚 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.

Crackers, Ritz, Garlic Butter