Flaxseeds are the golden yellow to reddish brown seeds of flax. These seeds contain phytoestrogens, which are similar to the hormoneestrogen. The seeds also contain soluble fiber and oil. Flaxseed oil contains the essential omega-3 fatty acid alpha-linolenic acid (ALA). Flax seeds are high in fibre, they contribute to intestinal blockage and constipation. In this condition, the absorption of certain medications and supplements gets inhibited.