Canola oil is a mixture of both saturated and unsaturated fatty acids. It is derived from the seed of a variety of rapeseed. Safflower oil is an oil extracted from the seeds of the safflower plant. Safflower oil is higher in polyunsaturated fats and is lower in saturated fats than many other plant oils. Flaxseed oil, or linseed oil, comes from the flax plant of the Linaceae family. The tiny seeds are pressed to extract their oil. Flaxseed oil contains essential nutrients such as omega-3 fatty acids. Flax is grown for both food and fiber. Flax fibers are used to make linen.