Canola Oil

What this is

Canola oil is the food-market name for low-erucic acid rapeseed oil. FDA regulation defines food-grade canola as refined, bleached, and deodorized oil from specified Brassica varieties with erucic acid no more than 2% of component fatty acids. The credible food-safety review is narrow: low-erucic specifications, refined-oil process contaminants such as 3-MCPD and glycidyl esters, and oxidation products when frying oil is overheated or repeatedly reused. Current human evidence does not support treating ordinary canola oil at food-use levels as a broad inflammatory toxin, though restaurant exposure still depends on fryer practices and the overall food pattern.

Safety Review

The critical endpoints experts review in safety assessments. This is not a prediction of harm.

Canola oil is not strongly supported as a human inflammatory toxin at ordinary food-use levels. The more credible review focus is whether the oil meets low-erucic acid specifications, how refined-oil process contaminants such as 3-MCPD and glycidyl esters are controlled, and whether fryer oil is overheated or reused long enough to produce oxidation products. Cardiovascular biomarker studies generally evaluate canola as a replacement fat; they should not be read as proof that every restaurant frying use is beneficial, but they also do not support broad toxicity claims.