Soybean: histamine not detected

Not detected

Every study used here reported it below their detection limit — under 0.10 mg per 100 g. That is a ceiling, not a zero: the assay could not see it, which is not the same as the food containing none.

By portion

PortionGramsHistamine
1 serving100 gunder 0.10 mg

Source

“Soybean ( Glycine max L. Merril) — not detected (n=42); Gloria et al. (2005)”
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
“Soybean ( G. max L. Merril), extract — not detected (n=10); Batista (2007)”
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
“Soybean ( G. max L. Merril), protein concentrate — not detected (n=3); Silva (2000)”
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
“Soybean ( G. max L. Merril), protein isolate — not detected (n=3); Silva (2000)”
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
“Soybean ( G. max L. Merril), sprout — not detected (n=12); Tavares Neto (2004)”
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

Also tracked for this food: oxalate

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.