The history of flax seeds therapeutic use dates back to the times of Hippocrates. In his book Corpus Hippocraticum he described beneficial effect of flax seeds on human organism. Flax seed provides nutritious oils required for good body functioning. It is best taken as the ground seed, especially over long periods of time. Rich in alpha-linolenic acid, one to three tablespoons a day can help to protect the heart and blood vessels and promote healthy bowel evacuation for prevention of toxic accumulation. It is high in mucilage, which helps to protect the entire digestive tract, respiratory tract and bile duct. The ground seed can be added to cereal or muesli. Water intake should be increased, as the seed absorbs liquid.