Milk thistle is a single-ingredient dietary supplement in the form of ground, defatted grains of Silybum marianum . Ground milk thistle, skimmed, is obtained in the process of skimming milk thistle seeds. Therefore, it has a different content of valuable ingredients than non-skimmed ground milk thistle. Herbs Milk thistle, ground, defatted - information Milk thistle has long been valued as a herbal raw material. Its seeds are a valuable source of dietary fiber. This annual plant, belonging to the Asteraceae family, can play a role in the proper functioning of the liver and support proper digestion. Ground thistle, in addition to being used on its own, can be added to salads, shakes or even sandwiches.