Back to Lectin food checker
tomato sauce

tomato sauce

Condiments & Sauces

Is tomato sauce high in lectin?

Lectin status
Avoid

Is tomato sauce high or low in lectin? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.

Sensitivity notes

Why lectin food checker matters

Lectins are proteins found in many plant foods, especially legumes and grains. Some people follow low-lectin diets believing they reduce inflammation and digestive issues, though properly cooked foods have reduced lectin content.

  • Proper cooking destroys most lectins - never eat raw beans
  • Pressure cooking is highly effective at reducing lectins
  • Peeling and deseeding reduces lectin content
  • Fermentation can reduce lectins in some foods
  • Sprouting may increase or decrease lectins depending on the food

Sensitivities

What tomato sauce contains

FODMAPs

FODMAPsLow
FructansSafe
GOSSafe
FructoseSafe
PolyolsSafe
LactoseSafe

Histamine & Amines

HistamineAvoid
Histamine LiberatorsHigh
TyramineSafe

Plant compounds

SalicylatesHigh
OxalatesAvoid
LectinAvoid
NightshadesAvoid

Irritants

CaffeineSafe
AlcoholSafe
Spicy FoodsSafe
Acidic FoodsModerate

Additives

SulfitesSafe
NitritesSafe
GlutamatesAvoid

Allergens

Dairy ProteinsSafe
GlutenSafe
EggSafe
PeanutSafe
Tree NutsSafe
SoyModerate
FishSafe
CrustaceansSafe
MolluscsSafe
SesameSafe
CelerySafe
MustardSafe
LupinSafe
Alpha-galSafe
NickelSafe

Diet fit

Where tomato sauce fits

Therapeutic diets

Low HistamineAvoid
Low SalicylateAvoid
Low FermentationSafe
EoE CompatibleCheck
AIPAvoid
InflammationNo data
Reflux DietAvoid
Specific CarbohydrateCheck
Low FibreFit
Gastroparesis DietFit

Lifestyle diets

VeganFit
VegetarianFit
PescatarianFit
MediterraneanFit
DASH DietFit
PaleoFit
Whole30Check
KetoFit
Low-carbFit

Religious diets

HalalFit
KosherFit
Hindu (no beef)Fit
JainCheck
Buddhist VegetarianCheck
Orthodox FastingFit
Ingredient notes

What to know about tomato sauce

Tomato sauce is one of the most concentrated food triggers in an ordinary kitchen. Simmering and reducing tomatoes stacks histamine, salicylates, oxalate, free glutamate and nightshade compounds into every spoonful. It grades high in histamine, so it is a frequent reason people flush, get a headache or a runny nose during an Italian meal, and it is also high in oxalate and a nightshade.

Watch for

  • High in histamine, and reducing tomatoes down to a sauce pushes it higher, so marinara often bothers people more than a fresh raw tomato does
  • High in salicylates and a moderate histamine liberator, a double hit if you are aspirin-sensitive or histamine-intolerant
  • High in oxalate, which matters on a kidney-stone (calcium oxalate) diet
  • A nightshade with high free glutamate, so it can flare both nightshade sensitivity and umami/glutamate reactions
Learn More

Lectin Guide

Everything you need to know about lectin sensitivity and smart food choices.

Lectins are proteins found in many plant foods, especially legumes and grains. Some people follow low-lectin diets believing they reduce inflammation and digestive issues, though properly cooked foods have reduced lectin content.

Sensitivity varies widely. What triggers one person may be fine for another. Track your reactions to find your personal threshold.

These foods are generally well-tolerated for Lectin sensitivity:

View all safe options

These foods have moderate levels and may be tolerated in small amounts:

These foods are high in lectin and may trigger symptoms:

View full list

If you're sensitive to Lectin, consider these strategies:

  • 1Proper cooking destroys most lectins - never eat raw beans
  • 2Pressure cooking is highly effective at reducing lectins
  • 3Peeling and deseeding reduces lectin content
  • 4Fermentation can reduce lectins in some foods
  • 5Sprouting may increase or decrease lectins depending on the food

Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.

Want personalized tracking?

Download Triggerbites to log meals, track symptoms, and discover your unique triggers.

Get the App

FAQ

Is tomato sauce high in Lectin?

Lectin: higher signal - consider smaller servings or swaps.

Can I still eat tomato sauce if I'm sensitive to Lectin?

Best to avoid or test carefully with a small amount.

What else should I check?

Check Histamine, Nightshades, and Oxalates next for a fuller picture.