tung oil

Oils & Fats

Is tung oil high in nickel?

Nickel status

Safe

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

Related checkers

Compare tung oil across criteria

HistamineSafe Histamine LiberatorsSafe FODMAPsSafe FructansSafe GOSSafe FructoseSafe

Sensitivity notes

Why nickel food checker matters

Nickel is a metal found in many foods including chocolate, nuts, and leafy greens. People with nickel allergy (often showing as contact dermatitis) may also react to dietary nickel, causing skin and digestive symptoms.

Avoid cooking acidic foods in stainless steel cookware
Canned foods often have higher nickel content
Chocolate, nuts, and legumes are common high-nickel foods
First-draw water from taps may be higher in nickel - let it run
Vitamin C may help reduce nickel absorption

Sensitivities

What tung oil contains

FODMAPs

FODMAPsSafe

FructansSafe

GOSSafe

FructoseSafe

PolyolsSafe

LactoseSafe

Histamine & Amines

HistamineSafe

Histamine LiberatorsSafe

TyramineSafe

Plant compounds

SalicylatesLow

OxalatesSafe

LectinSafe

NightshadesSafe

Irritants

CaffeineSafe

AlcoholSafe

Spicy FoodsSafe

Acidic FoodsSafe

Additives

SulfitesSafe

NitritesSafe

GlutamatesSafe

Allergens

Dairy ProteinsSafe

GlutenSafe

EggSafe

PeanutSafe

Tree NutsSafe

SoySafe

FishSafe

CrustaceansSafe

MolluscsSafe

SesameSafe

CelerySafe

MustardSafe

LupinSafe

Alpha-galSafe

NickelSafe

Diet fit

Where tung oil fits

Therapeutic diets

Low HistamineFit

Low SalicylateFit

Low FermentationSafe

EoE CompatibleFit

AIPAvoid

InflammationCheck

Reflux DietNo data

Specific CarbohydrateNo data

Low FibreNo data

Gastroparesis DietNo data

Lifestyle diets

VeganFit

VegetarianFit

PescatarianNo data

MediterraneanFit

DASH DietFit

PaleoNo data

Whole30No data

KetoNo data

Low-carbNo data

Religious diets

HalalNo data

KosherNo data

Hindu (no beef)No data

JainNo data

Buddhist VegetarianNo data

Orthodox FastingNo data

Ingredient notes

What to know about tung oil

Tung oil is not a food, and that is the entire point of this page. It is pressed from the nut of Vernicia fordii and used as a wood finish, valued because it polymerises on contact with air into a hard, water resistant film. It is in this database because it appears in ingredient lists and because people searching for it are usually asking one specific question: whether a tung oil finish on a chopping board or a wooden bowl is safe for food contact. That is a genuinely reasonable question with a genuinely nuanced answer. What it is not is a cooking oil, and it should never be swallowed.

Watch for

Do not ingest it.Tung oil is a drying oil, not an edible one, and swallowing it causes gastrointestinal upset, vomiting and diarrhoea. There is no culinary use and no quantity that is intended to be eaten. The swap suggestions on this page are edible oils offered for anyone who arrived here looking for one, not equivalents.
The food contact question turns on curing.Pure, fully cured tung oil is widely regarded as food safe for wooden surfaces once it has polymerised, which takes days to weeks rather than hours. Uncured oil is not, and rushing the cure is the actual mistake people make.
Most products sold as tung oil are not pure tung oil.Tung oil finish typically contains petroleum distillates and metallic driers, and those additives are the reason a given tin may not be food safe even when the base oil would be.
Vernicia is in the Euphorbiaceae, the spurge family, and so is a relative of the castor bean rather than of any culinary nut.The word nut in tung nut is misleading in exactly the way that matters.
It is not a tree nut allergen in the labelling sense, since it is not a food, but the residue question on a finished surface is worth raising with an allergist rather than assuming.

Swap ideas