Flaxseed oil comes from the seeds of the flax plant. A flax seed is about 40% oil by weight. Of this oil, 55% of it is omega-3 fatty acid.
Flax is unique because, traditionally, the oil hasn’t been used much. The seed, however, has been used whole, cracked, or ground into flour then used in baked products. Flax has attracted nutritionists and those seeking a healthier diet because it has a high fiber content and it is rich in potassium. Flax is often sprinkled on breakfast cereals and salads and is found in some fruit juice drinks.
Bipolar disorder. Research suggests that taking flax seed oil daily for 16 weeks does not improve symptoms of mania or depression in children with bipolar disorder.
Diabetes. Research suggests that flaxseed oil does not lower blood sugar or improve insulin levels in people with type 2 diabetes.
High cholesterol. Early research suggests that taking flaxseed oil daily for 3 months lowers total cholesterol in people with high cholesterol. However, this early research is not reliable. More high-quality evidence suggests that flax seed oil does not reduce cholesterol levels in people with high cholesterol and high triglycerides.
Rheumatoid arthritis (RA). Taking flaxseed oil daily for 3 months does not seem to improve symptoms of pain and stiffness, and has no effect on laboratory tests that measure the severity of RA.