Flaxseed oil, also known as linseed oil or linseed oil, is made from flax seeds that have been ground and pressed to release their natural oil. This health-promoting oil has a variety of uses, from cooking to skin care. While current research is limited to in vitro and animal studies, there is some evidence that flaxseed oil may help reduce the growth of cancer cells. Several studies have shown that flaxseed oil may benefit heart health because it may also improve the elasticity of arteries. One of the best things about flaxseed oil and flaxseed is its versatility. For starters, it can easily be substituted for other types of oil in salad dressings, dips, and sauces. You can also add a serving (one tablespoon or 15 ml) to smoothies or shakes to add some flaxseed oil to your diet with minimal effort.