Peanut oil

What this is

Peanut oil is not a synthetic additive; it is a named vegetable oil used in foods and food-service cooking. The main safety issue is allergen relevance, not ordinary oil toxicity. Highly refined peanut oil generally contains very little residual peanut protein; a blinded challenge study found no reactions to refined peanut oil among peanut-allergic subjects, while some subjects reacted to crude peanut oil. Regulators handle this differently: U.S. allergen law excludes highly refined oils from the major food allergen definition, while Health Canada says peanut oil must identify the source peanut whenever present, including highly refined peanut oil. Australia/New Zealand and the European Union also require peanut allergen declaration when peanut products are present. Nutritionally, peanut oil is mostly unsaturated fat, and replacing saturated fat with unsaturated oils is generally viewed favorably for cardiovascular risk. Like other cooking oils, repeated high-heat use can increase oxidation products. Peanuts can also carry aflatoxins, so raw-material controls, refining, and contaminant rules matter. No broad food-use ban or delisting was found.

Safety Review

The health areas reviewed when evaluating an ingredient. This does not mean the ingredient is proven to cause harm.

A blinded challenge study found no reactions to refined peanut oil among peanut-allergic subjects, while some reacted to crude peanut oil. The additional food-safety concerns are use-pattern and raw-material controls: repeated high heat can increase oxidation products, and peanuts can carry aflatoxins that must be managed by sourcing, contaminant controls, and refining.