The dried seeds of this herb are used.It contains 25% insoluble fiber, 40% oil and triglycerides (α-linolenic acid), polysaccharides (mucilage), cyanogenic glycosides, flavonoids and lignans (phytoestrogens).Attributed properties: laxative, lipid-lowering, topical anti-inflammatory on the skin.Indication based on the German Commission E Ministry of Health and the European Medicines Agency (EMA): constipation. The consumption of flaxseed increases the concentration of α-linolenic acid in human milk, a precursor of docosahexaenoic acid (DHA), which could improve the concentration of infant DHA.Fat and linoleic acid concentration in milk bank may be decreased due to pasteurization and freezing. Although devoid of toxicity, its estrogenic effects make its use during lactation should be moderate, avoiding prolonged use.