Flavonolignan

Figure 1. The chemical structure of the Flavonolignan silibinin (found in milk thistle extract).

Flavonolignans are natural phenols composed of part flavonoid and part phenylpropane. Flavonolignan compounds are found in silymarin: a standardised extract from the seeds of the Silybum marianum (or Milk Thistle) plant.

For nutritional values, refer to the Codex entry for Milk Thistle.