Peanut Oil

Oil

Peanut oil is an edible fat made from peanuts, also called groundnuts or arachis. It is used for frying and to add flavor and texture to foods. Refined, unrefined, and high oleic forms differ in processing, remaining protein, and fat composition.

Also known as

Peanut Oil · Arachis Oil · Groundnut Oil · Earthnut Oil · Refined Peanut Oil · Unrefined Peanut Oil · High Oleic Peanut Oil

Common questions

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Is peanut oil a seed oil?

Yes. Peanut oil comes from peanuts, which are the seeds of the peanut plant. Codex identifies peanut oil, groundnut oil and arachis oil as names for the same oil.

Codex vegetable oil definitions

Which restaurants list peanut oil?

Explore peanut oil matches from these restaurant menus:

Chick-fil-A · Culver's · Dairy Queen · Five Guys · IHOP · Jimmy John's · McAlister's Deli · Panera Bread

Which menu items list peanut oil?

Browse 71 menu matches for peanut oil. Search by item name or choose a restaurant, then open an item to read its ingredient statement and any listed alternatives.

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Why PRūF tracks it

The main concern is allergic reaction to remaining peanut protein, particularly in unrefined oil or when refining is unknown, while repeated heating and contamination create separate exposure concerns that depend on the product and its handling.

Read the research

Peanut oil contains mainly unsaturated fats, with proportions that vary by cultivar. High oleic oil has a different fatty acid profile; it is not a guarantee of allergen removal. Refining usually removes most peanut protein, while unrefined and cold-pressed oils can retain enough to trigger reactions in peanut-allergic people. An older blinded challenge reported no reactions to refined oil among 60 allergic participants, but six reacted to crude oil.

That result does not guarantee every product or person is protected. A 2024 FAO/WHO assessment emphasizes residual-protein measurement and exposure uncertainty. A 2025 severe-allergy case adds caution, although the oil grade was unknown and an oral oil challenge was not performed. In a one-year human trial, peanut, corn, and blended oils produced no significant differences in measured cardiovascular risk markers.

Recent animal studies have mixed metabolic findings and do not establish ordinary-use human disease. Repeated heating produces oxidation products; quality controls also address aflatoxins and contaminants formed during refining. Peanut-allergic people need product-specific information and their allergy care plan.

Research reviewed on September 5, 2026 · 12 sources