Vegetable oil and predicted allergic reactions to leftover peanut protein
What it found
Computer models predicted an extremely low chance of allergic reactions in people with peanut allergy eating foods made with vegetable oils.
The highest estimate was 3 reactions per 1000 eating occasions.
What they found
Predicted allergic reactions
Models estimated a very small number of allergic reactions in people with peanut allergy. Depending on the model used, predictions ranged from zero up to 3 reactions per 1000 eating occasions.
Amounts triggering reactions
All predicted reactions involved amounts of peanut protein far smaller than what has caused problems in the most sensitive person described in medical reports.
Allergy labelling guidance
According to the VITAL programme run by the Allergen Bureau, none of the tested food products would need a warning label for peanut.
What the authors conclude
- They conclude that the health risk from peanut protein mixing into other vegetable oils during production is negligible.
- They advise that none of the examined food products would require precautionary peanut labelling under the VITAL programme.
How it was done
Refined vegetable oils are used widely in foods, and shared factory equipment can leave tiny amounts of peanut protein in oils that are not made from peanuts. The authors wanted to estimate how many allergic reactions this might cause.
The researchers used computer models to predict allergic reactions across several food scenarios. They factored in how much refined peanut oil is produced, how often oils mix during production, the fat content of typical foods, and the amount of peanut protein found in refined peanut oil.
What it can’t tell you
- We summarised it from the abstract only.
- These findings come from computer models rather than feeding trials, so they predict risk instead of measuring real reactions in people.
- The models rely on estimates of factory cross-contact and protein levels, which may differ from any single batch of food.
Who paid
- Authors work at
- Safety and Environmental Assurance Centre (SEAC), United Kingdom
The paper
- Title
- Assessing food allergy risks from residual peanut protein in highly refined vegetable oil
- Type
- Study
- Summarised from
- Abstract only
- Cite
- Blom WM, Kruizinga AG, Rubingh CM, Remington BC, Crevel RWR, Houben GF (2017). Assessing food allergy risks from residual peanut protein in highly refined vegetable oil. Food and chemical toxicology. doi:10.1016/j.fct.2017.05.072PubMed 28578104DOI
Summary written 30 Sep 2026. Check it against the paper before it changes what you eat. How we summarise papers · Report an error