๐ŸŸข Safe
Oxalate <25 mg/serving
๐ŸŸก Caution
Oxalate 25-99 mg/serving
๐Ÿ”ด Avoid
Oxalate โ‰ฅ100 mg/serving
๐ŸŸก

Algae, dried

๐ŸŸก Caution โ€” Moderate
30 mg oxalate / serving
Serving: 1 oz (28 g) | Per 100 g: 109 mg
โœ“ Medically Reviewed Content reviewed by OxalateWatch Editorial Team. Based on Harvard T.H. Chan SPH oxalate data (2024) and NKF/AUA dietary guidelines.

๐Ÿ“Š Nutrition at a Glance

30 mg
Oxalate / serving
Moderate
โ€”
Sodium / 100g
Pending
โ€”
Protein / 100g
Pending
โ€”
Calcium / 100g
Pending

๐Ÿ“ Oxalate by Serving Size

ServingWeightOxalateVerdict
1 oz28 g30 mg Caution
2 x 1 oz56 g60 mg Caution
ยฝ x 1 oz14 g15 mg Safe

๐Ÿท๏ธ Tags

Vegetables ๐ŸŸก Oxalate Caution Moderate Oxalate

๐ŸŸก See all Vegetables rated Caution for kidney stones โ†’

โš–๏ธ Compare this food: ยท vs Water Chestnuts ยท vs Sprouts โ†’

๐Ÿ”— Related Foods

โ“ Frequently Asked Questions

Is Algae safe for kidney stones?

It's a 'watch it' food, not a 'stop it' food. 30 mg per 1 oz puts Algae in the caution range. Pair it with calcium-rich foods and you'll blunt some of the oxalate absorption.

How much oxalate is in Algae?

The exact figure: 30 mg of oxalate per 1 oz of Algae. Works out to 109 mg/100g. This is the number kidney stone patients actually need. Harvard (2024) verified.

Is Algae a high-oxalate food?

It's in the moderate range. 30 mg per 1 oz sits between safe and high-risk. Manageable if you watch how much you eat.

What can I eat instead of Algae?

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

How reliable is the data for Algae?

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.

How much Algae is safe to eat?

Think garnish, not main dish. Algae at 30 mg per 1 oz is a lot for one food. Use smaller amounts spread across meals or as a flavor accent rather than the centerpiece.

๐Ÿ” Explore More About This Food

๐Ÿ“š Data Sources

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

๐Ÿ“– 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.