Fennel: oxalate content (12.50 mg/100 g)

Fennel contains about 12.50 mg of oxalate per 100 g, which is moderate for oxalate.

12.50 mg/100 g

Reported range 5.30–19.70 mg per 100 g.Concentrations vary with ripeness, storage and processing, so a single figure would be misleading.

By portion

PortionGramsOxalate
1 serving100 g12.50 mg

Source

“Fennel Foeniculum vulgare — Boiled: total 5.3, soluble 3.3 (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
“Fennel Foeniculum vulgare — Raw: total 19.7, soluble 17.2 (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.