Lettuce: oxalate content (1.30 mg/100 g)

1.30 mg/100 g

Reported range 0.30–40.00 mg per 100 g. Concentrations vary with ripeness, storage and processing, so a single figure would be misleading.

By portion

PortionGramsOxalate
1 cup36 g0.47 mg
1 serving100 g1.30 mg

Source

“Lettuce Lactuca sativa — Raw: total 40, soluble ND (mg/100 g FW)”
Oxalate in Foods: Extraction Conditions, Analytical Methods, Occurrence, and Health Implications (Foods 2023;12(17):3201) · 2023 · CC BY 4.0
“Lettuce Lactuca sativa — Raw: total 0.3, soluble 0.3 (mg/100 g FW)”
Oxalate in Foods: Extraction Conditions, Analytical Methods, Occurrence, and Health Implications (Foods 2023;12(17):3201) · 2023 · CC BY 4.0
“Lettuce Valeriana locusta — Raw: total 1.3, soluble 0.9 (mg/100 g FW)”
Oxalate in Foods: Extraction Conditions, Analytical Methods, Occurrence, and Health Implications (Foods 2023;12(17):3201) · 2023 · CC BY 4.0

Food composition data, not medical advice. Reported tolerance thresholds vary widely between individuals, so a value being high here does not mean you will react to it.