What is Silymarin (milk thistle)?
A mixture of compounds from milk thistle fruit, traditionally used for “liver protection”. As a medicine it is used as supportive treatment in chronic inflammatory liver disease, cirrhosis and toxic liver damage – it does not replace avoiding alcohol or other liver toxins.
How well studied is Silymarin (milk thistle)?
Evidence is mixed: US-government-funded trials in hepatitis C and fatty liver disease showed no benefit; results in alcohol-related liver disease are conflicting or too limited. Small studies suggest slight blood-sugar lowering in type 2 diabetes.
What side effects and risks does Silymarin (milk thistle) have?
Usually well tolerated; GI complaints (nausea, bloating, diarrhoea), skin reactions, rarely allergies (daisy family). May lower blood sugar – caution with diabetes drugs and GLP-1 therapy. Supplements sometimes contain amounts of silymarin very different from the label.
Is Silymarin (milk thistle) approved in Germany?
In short: yes. Approved in Germany as a standardised herbal medicine (pharmacy-only, not prescription-only); also sold as unlicensed dietary supplements of variable quality. Not on the WADA Prohibited List. Unexplained liver values need medical assessment rather than a “self-detox”; milk thistle does not replace treatment.
Sources
Note: We deliberately do not list any doses here. For approved medicines, your doctor sets the dose; for unapproved substances there is no reliable information.