Flaxseed Oil is a vegetable source of Omega-3 fatty acids. Natrol Flax Seed Oil is a natural source of Alpha Linolenic Acid, an omega-3 fat that may help support cardiovascular health. Flax Seed Oil is derived from the seeds of the flax plant and is a natural plant source of essential fatty acids that play a critical role in the health of all cells in the body, as well as help promote healthy skin and hair.