Soy sauce: histamine content (12.30 mg/100 g)

12.30 mg/100 g

Reported range 12.30–30.70 mg per 100 g. Concentrations vary with ripeness, storage and processing, so a single figure would be misleading.

By portion

PortionGramsHistamine
1 serving100 g12.30 mg

Source

“Soy sauce — mean 123.0 mg/kg (n=42); Guidi and Gloria (2012)”
Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance (Food Science & Nutrition 2025;13:e71151) · 2025 · 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.