Flax seed contains Omega 3 fatty acids, lignans and fiber.
Omega-3 essential fatty acids, "good" fats that have been shown to have heart-healthy effects. Each tablespoon of ground flaxseed contains about 1.8 grams of plant omega-3s.
Lignans, which have both plant estrogen and antioxidant qualities. Flaxseed contains 75 to 800 times more lignans than other plant foods.
Fiber. Flax seed contains both the soluble and insoluble types. Flax seeds and cholesterol lowering Flax seeds are a rich source of alpha-linolenic acid. This is the plant-derived type of omega-3 fats, which has been shown to lower LDL cholesterol, as well as triglycerides levels. A 2010 study, published in Nutrition Research, found that daily administration of 100mg of flaxseed lignan, can be effective at reducing blood cholesterol levels, in men with a moderately high cholesterol level. Flax seeds also contain both insoluble and soluble fiber. Soluble fiber is thought to aid in lowering cholesterol, by preventing the absorption of cholesterol within the body.