Milk Thistle
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Evidence Summary
Milk thistle, primarily through its active component silymarin, is extensively researched for its hepatoprotective properties. Evidence suggests it is effective in managing various liver conditions, particularly NAFLD/MASLD, and improving metabolic markers.
Evidence by Condition
Multiple meta-analyses indicate silymarin is effective in treating nonalcoholic fatty liver disease and metabolic dysfunction-associated steatotic liver disease, often as part of multi-intervention strategies.
Cochrane reviews suggest potential benefits for managing liver diseases related to alcohol and viral hepatitis.
Evidence supports the use of silymarin in the prevention and management of idiosyncratic drug-induced liver injury.
Meta-analyses demonstrate therapeutic effects of silymarin on glucose and lipid metabolic dysfunction.
Herbal agents including thistle are evaluated for managing radiodermatitis in breast cancer patients.
Effective Doses
Dose ranges are not specified in the provided research abstracts.
Key Findings
- Silymarin is effective for adults with metabolic dysfunction-associated steatotic liver disease (PMID: 40552569)
- The combination of berberine and silymarin has a measurable effect on liver enzymes (PMID: 35623810)
- Silymarin provides therapeutic effects for patients with glucose and lipid metabolic dysfunction (PMID: 33019400)
- Silymarin is useful in the prevention and management of idiosyncratic drug-induced liver injury (PMID: 33359912)
Limitations
Much of the current research focuses on silymarin in combination with other treatments (such as TCM or berberine) rather than monotherapy, and there is a call to re-evaluate standardized administration practices (PMID: 40221681).
Safety & Interactions
No specific contraindications or drug interactions were detailed in the provided text, though its use is studied in the context of managing drug-induced liver injury.
AI-generated summary from 69 peer-reviewed studies. Not medical advice. Always consult a healthcare provider.
Drug-Supplement Interactions
⚠️ This information is for educational purposes only and does not constitute medical advice. Always consult your healthcare provider before combining supplements with medications.
Claims vs. Evidence
| Claim Type | % of Products | Evidence Required | Status |
|---|---|---|---|
| All Other | 99% | Tier D (Unclassified) | ✅ Supported |
| Structure/Function | 83% | Tier C (DSHEA Structure/Function (no pre-approval)) | ✅ Supported |
| Nutrient | 4% | Tier D (Unknown) | ✅ Supported |
| No Claim | 1% | Tier D (No claim on label) | ✅ Supported |
| Approved Health | 0% | Tier A (FDA Approved Health Claim (21 CFR 101.9)) | ⚠️ Unsupported |
Research by Topic
⚠️ FDA Safety Data
Research Evidence (69)
RATIONALE: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a major public health challenge, with approximately 32.4% of adults globally diagnosed with the condition and a steadily increasing prevalence. Currently, no specific medi...
**Que et al., 2024** | Jpn J Nurs Sci | Meta Analysis Que Suyun, Ma Xuanlei, ... He Jiangtao. Evaluation of the effect of herbal agents as management of radiodermatitis in breast cancer patients: A systematic review and meta-analysis. Jpn J Nurs Sci....
**Zhang et al., 2025** | Asia Pac J Clin Nutr | Meta Analysis Zhang Zhen, Li Shuai, Sun Jianjun. Efficacy of different interventions for nonalcoholic fatty liver disease: A meta-analysis of lifestyle modifications, silymarin, and medications. Asia Pa...
**Rambaldi et al., 2007** | Cochrane Database Syst Rev | Meta Analysis Rambaldi A, Jacobs B P, Gluud C. Milk thistle for alcoholic and/or hepatitis B or C virus liver diseases. Cochrane Database Syst Rev. 2007-Oct-17;2007(4):CD003620 BACKGROUND: Alco...
**Hoffman et al., 2021** | Cochrane Database Syst Rev | Meta Analysis Hoffman Jacob, Williams Taryn, ... Stein Dan J. Pharmacotherapy for trichotillomania. Cochrane Database Syst Rev. 2021-Sep-28;9(9):CD007662. doi:10.1002/14651858.CD007662.pub3 BACK...
BACKGROUND & AIMS: Despite controversies, no study has systematically summarized findings from earlier studies on the effect of berberine (BBR)-silymarin on liver enzymes. Therefore, the current systematic review and meta-analysis aimed to investigat...
**Zhang et al., 2024** | Medicine (Baltimore) | Meta Analysis Zhang Xiang, Jiang Zhenghao, ... Zhou Qiujun. Efficacy of traditional Chinese medicine combined with Silibinin on nonalcoholic fatty liver disease: A meta-analysis and systematic review. M...
**Shahsavari et al., 2025** | BMC Complement Med Ther | Meta Analysis Shahsavari Kasra, Ardekani Shireen Shams, ... Hasanpour Maede. Are alterations needed in Silybum marianum (Silymarin) administration practices? A novel outlook and meta-analysis on...
**Xiao et al., 2020** | Medicine (Baltimore) | Meta Analysis Xiao Fengyan, Gao Feng, ... Wang Lina. The therapeutic effects of silymarin for patients with glucose/lipid metabolic dysfunction: A meta-analysis. Medicine (Baltimore). 2020-Oct-02;99(40):...
INTRODUCTION AND OBJECTIVES: Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease with a high prevalence worldwide and poses serious harm to human health. There is growing evidence suggesting that the administration of specific supplem...
**Zhong et al., 2017** | Medicine (Baltimore) | Meta Analysis Zhong Sheng, Fan Yuxiang, ... Niu Junqi. The therapeutic effect of silymarin in the treatment of nonalcoholic fatty disease: A meta-analysis (PRISMA) of randomized control trials. Medicine...
**Niu et al., 2021** | Pharmacol Res | Meta Analysis Niu Hao, Sanabria-Cabrera Judith, ... Lucena M Isabel. Prevention and management of idiosyncratic drug-induced liver injury: Systematic review and meta-analysis of randomised clinical trials. Pharm...
**Rambaldi et al., 2005** | Cochrane Database Syst Rev | Meta Analysis Rambaldi A, Jacobs B P, ... Gluud C. Milk thistle for alcoholic and/or hepatitis B or C virus liver diseases. Cochrane Database Syst Rev. 2005-Apr-18(2):CD003620 BACKGROUND: Alcoh...
**Li et al., 2025** | Front Oncol | Systematic Review Li Mingyu, Hao Jianping, ... Zhao Lijun. Efficacy of various plant-derived interventions in the prevention of radiation dermatitis in breast cancer patients: a systematic review and network meta-a...
**Zhong et al., 2025** | Front Med (Lausanne) | Systematic Review Zhong Yuchan, Qiao Xinyu, ... Huang Wei. The effects of antioxidant supplementation on pain, oxidative stress markers, and clinical pregnancy rate in women with endometriosis: a system...
**Yin et al., 2025** | Diabetes Res Clin Pract | Meta Analysis Yin Shao, Zhu Fengya, ... Chen Qiu. Effects of silymarin on insulin resistance and sensitivity: A systematic review and meta-analysis of randomized controlled trials. Diabetes Res Clin Pr...
**Khurana et al., 2022** | J Clin Endocrinol Metab | Systematic Review Khurana Nayana, James Steven, ... Ekinci Elif I. Novel Therapies for Kidney Disease in People With Diabetes. J Clin Endocrinol Metab. 2022-Jan-01;107(1):e1-e24. doi:10.1210/clinem...
**Voroneanu et al., 2016** | J Diabetes Res | Meta Analysis Voroneanu Luminita, Nistor Ionut, ... Covic Adrian. Silymarin in Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Diabetes Res. 2016;2016:51...
**Hadi et al., 2018** | Complement Ther Med | Meta Analysis Hadi Amir, Pourmasoumi Makan, ... Miraghajani Maryam. The effects of silymarin supplementation on metabolic status and oxidative stress in patients with type 2 diabetes mellitus: A systemati...
**Fogacci et al., 2019** | Phytother Res | Meta Analysis Fogacci Federica, Grassi Davide, ... Cicero Arrigo F G. Metabolic effect of berberine-silymarin association: A meta-analysis of randomized, double-blind, placebo-controlled clinical trials. Phy...
**Kishi et al., 2022** | Transl Psychiatry | Meta Analysis Kishi Taro, Sakuma Kenji, Iwata Nakao. Mitochondrial modulators for obsessive-compulsive and related disorders: a systematic review and meta-analysis. Transl Psychiatry. 2022-Jun-28;12(1):263...
**Mohammadi et al., 2024** | Phytother Res | Meta Analysis Mohammadi Shooka, Ashtary-Larky Damoon, ... Afrisham Reza. Effects of silymarin supplementation on liver and kidney functions: A systematic review and dose-response meta-analysis. Phytother R...
**Miao et al., 2025** | Phytother Res | Systematic Review Miao Runyu, Zhang Boxun, ... Tong Xiaolin. Clinical Efficacy of Curcumin, Resveratrol, Silymarin, and Berberine on Cardio-Metabolic Risk Factors Among Patients With Type 2 Diabetes Mellitus: A...
PURPOSE: Milk thistle, an herbal compound, is the dietary supplement taken most frequently by patients with chronic liver disease. We performed a systematic review of the literature to determine the efficacy and safety of this herb for the treatment ...
**Suksomboon et al., 2011** | J Ethnopharmacol | Meta Analysis Suksomboon Naeti, Poolsup Nalinee, ... Suthisisang Chuthamanee C. Meta-analysis of the effect of herbal supplement on glycemic control in type 2 diabetes. J Ethnopharmacol. 2011-Oct-11;13...
**Xiang et al., 2013** | BMC Gastroenterol | Systematic Review Xiang Zun, Chen Yi-peng, ... Jin Xi. The role of ursodeoxycholic acid in non-alcoholic steatohepatitis: a systematic review. BMC Gastroenterol. 2013-Sep-23;13:140. doi:10.1186/1471-230X-1...
OBJECTIVE: This study aimed to evaluate the efficacy and safety of silymarin on chronic hepatitis C virus- (HCV-) infected patients. METHODS: Randomized controlled trials (RCTs) of silymarin in chronic HCV-infected patients up to April 1, 2014 were s...
**Cragg et al., 2026** | Eur J Clin Nutr | Systematic Review Cragg Aislinn, Levene Ilana, ... Willcox Merlin. Herbal galactagogues to improve breastmilk production and lactation in mothers of preterm babies: a systematic review of clinical trials. Eu...
**Darvishi-Khezri et al., 2021** | Expert Rev Clin Pharmacol | Meta Analysis Darvishi-Khezri Hadi, Naderisorki Mohammad, ... Karami Hossein. Coadministration of silymarin with iron chelators in transfusion-dependent β-thalassemia patients: a systemat...
**Cho et al., 2022** | Obes Rev | Systematic Review Cho Kyuyeon, Park Seoyeon, ... Smith Lee. The effect of pharmacological treatment and lifestyle modification in patients with nonalcoholic fatty liver disease: An umbrella review of meta-analyses of...
Silymarin, an extract from milk thistle seeds, has been used for centuries to treat hepatic conditions. Preclinical data indicate that silymarin can reduce oxidative stress and consequent cytotoxicity, thereby protecting intact liver cells or cells n...
**Bahari et al., 2024** | Inflammopharmacology | Meta Analysis Bahari Hossein, Shahraki Jazinaki Mostafa, ... Malekahmadi Mahsa. The effects of silymarin consumption on inflammation and oxidative stress in adults: a systematic review and meta-analysi...
BACKGROUND: Despite centuries of traditional use of silymarin for hepatoprotection, current randomized controlled trial (RCT) studies on the effectiveness of silymarin in managing metabolic dysfunction-associated steatotic liver disease (MASLD) are l...
**de et al., 2017** | World J Gastroenterol | Meta Analysis de Avelar Camila Ribeiro, Pereira Emile Miranda, ... de Oliveira Lucivalda Pereira Magalhães. Effect of silymarin on biochemical indicators in patients with liver disease: Systematic review ...
**Kalopitas et al., 2021** | Nutrition | Meta Analysis Kalopitas Georgios, Antza Christina, ... Chourdakis Michail. Impact of Silymarin in individuals with nonalcoholic fatty liver disease: A systematic review and meta-analysis. Nutrition. 2021-Mar;8...
**Malik et al., 2021** | Clin J Gastroenterol | Meta Analysis Malik Adnan, Nadeem Mahum, Malik Muhammad Imran. Efficacy of elafibranor in patients with liver abnormalities especially non-alcoholic steatohepatitis: a systematic review and meta-analysi...
OBJECTIVES: Our objectives were to assess the beneficial and harmful effects of milk thistle (MT) or MT constituents versus placebo or no intervention in patients with alcoholic liver disease and/or hepatitis B and/or C liver diseases. METHODS: Rando...
**Kronborg et al., 2021** | Front Med (Lausanne) | Systematic Review Kronborg Thit Mynster, Ytting Henriette, ... Kimer Nina. Novel Anti-inflammatory Treatments in Cirrhosis. A Literature-Based Study. Front Med (Lausanne). 2021;8:718896. doi:10.3389/...
**Saller et al., 2008** | Forsch Komplementmed | Meta Analysis Saller Reinhard, Brignoli Reto, ... Meier Rémy. An updated systematic review with meta-analysis for the clinical evidence of silymarin. Forsch Komplementmed. 2008-Feb;15(1):9-20. doi:10.1...
**Soleymani et al., 2022** | Phytother Res | Meta Analysis Soleymani Samaneh, Ayati Mohammad Hossein, ... Zargaran Arman. The effects of Silymarin on the features of cardiometabolic syndrome in adults: A systematic review and meta-analysis. Phytother...
**Zare et al., 2024** | Naunyn Schmiedebergs Arch Pharmacol | Systematic Review Zare Mehrjerdi Parisa, Asadi Sara, ... Baradaran Rahimi Vafa. Silibinin as a major component of milk thistle seed provides promising influences against diabetes and its c...
**Frounchi et al., 2025** | Biochemistry (Mosc) | Meta Analysis Frounchi Negin, Mahmoodpoor Fariba, ... Roumiantsev Sergey. Nephroprotective Effects of Silymarin: A Systematic Review and Meta-Analysis. Biochemistry (Mosc). 2025-Aug;90(8):1140-1152. d...
**Wei et al., 2013** | Eur J Clin Microbiol Infect Dis | Meta Analysis Wei F, Liu S-K, ... Li Y-W. Meta-analysis: silymarin and its combination therapy for the treatment of chronic hepatitis B. Eur J Clin Microbiol Infect Dis. 2013-May;32(5):657-69. ...
**Mohammadi et al., 2019** | Phytother Res | Meta Analysis Mohammadi Hamed, Hadi Amir, ... Rouhani Mohammad Hossein. Effects of silymarin supplementation on blood lipids: A systematic review and meta-analysis of clinical trials. Phytother Res. 2019-A...
**Tvrdý et al., 2021** | Med Res Rev | Systematic Review Tvrdý Václav, Pourová Jana, ... Mladěnka Přemysl. Systematic review of pharmacokinetics and potential pharmacokinetic interactions of flavonolignans from silymarin. Med Res Rev. 2021-Jul;41(4):...
**Raza et al., 2022** | Support Care Cancer | Meta Analysis Raza Afsheen, Karimyan Nelli, ... Enciso Reyes. Efficacy of oral and topical antioxidants in the prevention and management of oral mucositis in head and neck cancer patients: a systematic re...
**Latacela et al., 2023** | Curr Med Chem | Systematic Review Latacela Gloria Alexandra, Ramaiah Pushpamala, ... Farhood Bagher. The Radioprotective Potentials of Silymarin/Silibinin Against Radiotherapy- Induced Toxicities: A Systematic Review of Cl...
**Stine et al., 2016** | Expert Rev Gastroenterol Hepatol | Systematic Review Stine Jonathan G, Lewis James H. Current and future directions in the treatment and prevention of drug-induced liver injury: a systematic review. Expert Rev Gastroenterol H...
**Rahimi-Dehkordi et al., 2024** | Rev Recent Clin Trials | Systematic Review Rahimi-Dehkordi Nasim, Heidari-Soureshjani Saeid, Sherwin Catherine M T. The Effects and Safety of Silymarin on β-thalassemia in Children and Adolescents: A Systematic Revi...
**Saric et al., 2017** | J Altern Complement Med | Systematic Review Saric Suzana, Clark Ashley K, ... Lev-Tov Hadar A. The Role of Polyphenols in Rosacea Treatment: A Systematic Review. J Altern Complement Med. 2017-Dec;23(12):920-929. doi:10.1089/a...
Showing top 50 of 69 sources, sorted by quality score.
Related Supplements
Frequently Asked Questions
What is Milk Thistle and what is it used for?
Milk thistle is a supplement containing silymarin, which is primarily used for its liver-protecting properties. There is strong evidence for its use in managing fatty liver disease and moderate evidence for supporting various other liver conditions.
Does Milk Thistle help with fatty liver disease?
Yes, there is strong evidence that silymarin is effective in treating nonalcoholic fatty liver disease (NAFLD) and metabolic dysfunction-associated steatotic liver disease (MASLD). It is often used as part of a multi-intervention strategy.
Can Milk Thistle help with blood sugar and cholesterol levels?
There is moderate evidence suggesting that silymarin can provide therapeutic effects for patients dealing with glucose and lipid metabolic dysfunction. This means it may help manage certain aspects of blood sugar and fat metabolism.
Is Milk Thistle effective for hepatitis or alcohol-related liver issues?
There is moderate evidence suggesting that silymarin may provide potential benefits for managing liver diseases related to alcohol consumption and viral hepatitis B or C.
What is the recommended dose of Milk Thistle?
The provided research does not specify an exact effective dose range for Milk Thistle. You should consult with a healthcare professional to determine the appropriate dosage for your specific needs.
Are there any known drug interactions or safety concerns with Milk Thistle?
No specific drug interactions or contraindications were documented in the available research. However, you should always consult your doctor before starting a new supplement, especially if you are managing liver injury.
Who should avoid taking Milk Thistle?
The current research does not identify specific groups of people who should avoid Milk Thistle. As with any supplement, it is best to discuss use with a medical provider to ensure it is safe for your individual health status.
Answers generated from research evidence. Not medical advice.