Lignans - Huge importance in healthLignans These are plant polyphenols that have a significant impact on hormone metabolism. Flaxseed is the richest natural source of a lignan called secoisolariciresinol diglycoside (SDG). However, lignans in lesser amounts can be found in sesame seeds, berries, whole grains, fruits and vegetables. It is stated that Flaxseeds contain 100x more lignans than [...]