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

Berries, Elderberries, raw, black

๐Ÿ”ด Avoid โ€” High
105 mg oxalate / serving
Serving: 1 cup (145 g) | Per 100 g: 72 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

105 mg
Oxalate / serving
High
6 mg
Sodium / 100g
Low Na
0.7 g
Protein / 100g
Tier 1
38 mg
Calcium / 100g
Tier 1

๐Ÿ“ Oxalate by Serving Size

ServingWeightOxalateVerdict
1 cup145 g105 mg Avoid
2 x 1 cup290 g210 mg Avoid
ยฝ x 1 cup72 g52.5 mg Caution

๐Ÿท๏ธ Tags

High Oxalate ๐Ÿ”ด Oxalate Avoid

๐Ÿ”— Related Foods

โ“ Frequently Asked Questions

Should I avoid Berries if I have kidney stones?

Straight talk: Berries is high in oxalate. 105 mg per 1 cup puts it firmly in the avoid zone (100+ mg). Kidney stone patients should limit this one. Harvard measured it, not us.

What's the oxalate content of Berries?

105 mg โ€” that's the oxalate in a standard 1 cup of Berries. For the 100g comparison freaks: 72 mg. Source is Harvard's 2024 food analysis project.

Is Berries a high-oxalate food?

Yeah, it's high. 105 mg per 1 cup is way over the safe threshold. Berries belongs in the 'limit severely' column.

What can I eat instead of Berries?

The easiest move: swap Berries for any ๐ŸŸข Safe food in the related foods grid. They're all under 25 mg per serving and verified by Harvard's 2024 data. Problem solved.

Can I eat Berries if I pair it with dairy?

The calcium trick works: dietary calcium + oxalate in the same meal = some of the oxalate gets bound up and pooped out instead of absorbed. So yes, have dairy with Berries. Same meal timing matters.

How much sodium does Berries have?

Low sodium: 6 mg/100g. That's a non-issue for kidney stones. Just don't undo it by drowning it in salt during cooking.

Does boiling Berries reduce the oxalate?

Yes โ€” boiling Berries and dumping the water can cut oxalate by roughly 30-50%. The oxalate dissolves into the water, and you pour it out. Steaming does way less. Raw = max oxalate.

๐Ÿ” Explore More About This Food

๐Ÿ“š Data Sources

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

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.