Back to Histamine Liberators food checker

soy protein

Legumes/Pulses

Is soy protein high in histamine liberators?

Histamine Liberators status

Moderate

Is soy protein high or low in histamine liberators? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.

Related checkers

Compare soy protein across criteria

HistamineLow FODMAPsSafe FructansSafe GOSSafe FructoseSafe PolyolsSafe

Sensitivity notes

Why histamine liberators food checker matters

Histamine liberators are foods that don't contain much histamine themselves but can trigger your body to release stored histamine. This can cause similar symptoms to high-histamine foods in sensitive individuals.

Avoid histamine liberators alongside high-histamine foods
Common liberators include citrus, strawberries, tomatoes, and chocolate
Your tolerance may vary based on overall histamine load
Keep a symptom diary to identify your personal triggers
Consider your total 'histamine bucket' - liberators add to it

Sensitivities

What soy protein contains

FODMAPs

FODMAPsSafe

FructansSafe

GOSSafe

FructoseSafe

PolyolsSafe

LactoseSafe

Histamine & Amines

HistamineLow

Histamine LiberatorsModerate

TyramineSafe

Plant compounds

SalicylatesLow

OxalatesHigh

LectinHigh

NightshadesSafe

Irritants

CaffeineSafe

AlcoholSafe

Spicy FoodsSafe

Acidic FoodsSafe

Additives

SulfitesLow

NitritesSafe

GlutamatesModerate

Allergens

Dairy ProteinsSafe

GlutenSafe

EggSafe

PeanutSafe

Tree NutsSafe

SoyAvoid

FishSafe

CrustaceansSafe

MolluscsSafe

SesameSafe

CelerySafe

MustardSafe

LupinSafe

Alpha-galSafe

NickelHigh

Diet fit

Where soy protein fits

Therapeutic diets

Low HistamineCheck

Low SalicylateCheck

Low FermentationSafe

EoE CompatibleAvoid

AIPAvoid

InflammationFit

Reflux DietFit

Specific CarbohydrateAvoid

Low FibreFit

Gastroparesis DietFit

Lifestyle diets

VeganFit

VegetarianFit

PescatarianFit

MediterraneanFit

DASH DietFit

PaleoAvoid

Whole30Avoid

KetoFit

Low-carbFit

Religious diets

HalalFit

KosherFit

Hindu (no beef)Fit

JainFit

Buddhist VegetarianFit

Orthodox FastingFit

Ingredient notes

What to know about soy protein

Soy protein is the rare soy food that grades clean on FODMAPs (A). Extraction strips the fermentable sugars that make whole soybeans a problem, so the isolate in a shake or a veggie burger behaves nothing like a bowl of edamame. What survives processing is everything else about soy. It is one of the big allergens and one of the six foods removed for EoE (E). It runs high on oxalate (D), roughly 40 to 60 mg per scoop, high on nickel (D), and it keeps soy’s reputation as a histamine liberator (C). A moderate free glutamate grade (C) and a low but real sulfite residue from processing (B) round out a profile that is friendlier to the gut than to the immune system.

Watch for

Soy is a declarable allergen and one of the six foods in an EoE elimination diet.The isolate is still soy in the way that matters immunologically.
High oxalate (D).Soy protein isolate carries far more oxalate than tofu or soy milk, and textured soy protein runs higher still, which matters for anyone managing kidney stones.
High nickel (D).Low nickel diet guidance names soy protein powder specifically, and it is one of the harder places to spot because powder hides in bars and meat alternatives.
A recognised histamine liberator (C), so it can prompt flushing or hives without containing much histamine itself.
Low FODMAP applies to the plain isolate.Flavoured powders and bars often add inulin or polyol sweeteners that put the FODMAPs straight back in.

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