Plant Comparison
Anise vs Milk Thistle
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Anise and Milk Thistle: they share 6 indicated uses (arthritis / joint pain, bloating, cancer (anticancer research), …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Anise | Milk Thistle | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 5/10 | Stronger for Milk Thistle |
| Bloating | 1/10 | 5/10 | Stronger for Milk Thistle |
| Cancer (anticancer research) | 2/10 | 7/10 | Stronger for Milk Thistle |
| Indigestion | 1/10 | 5/10 | Stronger for Milk Thistle |
| Inflammation (general) | 1/10 | 5/10 | Stronger for Milk Thistle |
| Skin irritation | 2/10 | 5/10 | Stronger for Milk Thistle |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Trans-anethole typically makes up the great majority of the volatile oil and gives anise its characteristic liquorice aroma and much of its digestive and antimicrobial activity.
The fruit's lipid fraction.
Pharmacological Actions
Improves glycemic control in type 2 diabetes - lowers fasting blood glucose and HbA1c
Anti-inflammatory and antioxidant; Hepatoprotective / liver support (protects liver cells, antioxidant and antifibrotic)
Digestive support / mild dyspepsia (traditional)
Hepatoprotective / liver support (protects liver cells, antioxidant and antifibrotic); May improve liver enzymes and hepatic fat in non-alcoholic fatty liver disease (NAFLD); Supports liver recovery and 'detox' (traditional framing of the hepatoprotective action)
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from analgesic action
inferred from digestive action
inferred from anticancer action
inferred from analgesic action
inferred from digestive action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Improves glycemic control in type 2 diabetes - lowers fasting blood glucose and HbA1c
inferred from anticancer action
Supports liver recovery and 'detox' (traditional framing of the hepatoprotective action)
Digestive support / mild dyspepsia (traditional)
inferred from anti-inflammatory action
Hepatoprotective / liver support (protects liver cells, antioxidant and antifibrotic); May improve liver enzymes and hepatic fat in non-alcoholic fatty liver disease (NAFLD)
inferred from antidiabetic action
Safety, Cautions & Contraindications
Generally safe when consumed in food amounts. Doses up to 20g daily considered safe for adults. May cause allergic reactions in some people. Caution advised during pregnancy and breastfeeding - stick to food amounts. Anethole can be toxic at high concentrations, particularly to the nervous system. Not enough safety data for medicinal use in children.
Duke (2002) provides clinical evidence (score 2) for anise as an antibacterial, antiseptic, antispasmodic, and expectorant. It has demonstrated estrogenic activity and is used as a clinically supported lactagogue to promote milk production. Commission E and WHO have both approved its use for catarrh and gastrointestinal spasms. Typical dosages are 0.5–1 g crushed seed three times per day in tea, or 0.05–0.2 ml of the fruit essential oil (Duke, 2002).
Very well tolerated, even at high doses; the main effects are mild gastrointestinal upset (nausea, loose stools). As a member of the daisy family (Asteraceae), it can cause allergic reactions in sensitive people.
Has a low potential for drug interactions (little effect on liver CYP enzymes), but use caution with medicines that have a narrow therapeutic window. Human pregnancy data are limited, so use cautiously.
External Ids
Botanical Description
Annual herb (Apiaceae), 30-60 cm tall, with an erect, downy stem. Lower leaves are rounded and toothed or shallowly lobed, while upper leaves are finely feathery and pinnately divided. Small white flowers are borne in compound umbels, followed by small, ridged, downy fruit ('aniseed') with a strong, sweet, liquorice scent.
Robust biennial (occasionally annual) thistle (Asteraceae), 30-150 cm tall. Leaves are glossy dark green with distinctive white marbled veining (the 'milk' of legend), spiny-margined and deeply lobed. Large, solitary, purple-pink thistle-type flower heads are surrounded by spiny bracts, followed by shiny, mottled brown-black seeds - the part used.[12]
Habitat
Native to the eastern Mediterranean and south-west Asia, widely cultivated as a spice and medicinal crop in warm-temperate regions worldwide, needing a long, warm growing season and well-drained soil.
Native to the Mediterranean region, now naturalised worldwide on disturbed, sunny ground - roadsides, waste places and dry pastures - and widely cultivated commercially for its seed.[12]
Harvesting
Fruit ('seed') is harvested in late summer once the umbels have dried and turned brown, then threshed and dried further.
Seed heads are harvested once fully dry (late summer), and the seeds (fruit) are threshed out.[12]
Traditional Uses
Anise has a long Mediterranean and Middle Eastern tradition as a carminative digestive remedy for bloating and indigestion, an expectorant for coughs and catarrh, and a traditional galactagogue (milk-promoting) herb for nursing mothers. Commission E and WHO both approve its traditional use for catarrh of the upper respiratory tract and gastrointestinal spasms.[11, 12, 13, 14, 15]
Milk thistle has a very long European folk-medicine tradition, documented since antiquity, as a liver tonic, and its seed extract, standardised to the flavonolignan complex silymarin, is one of the most extensively studied herbal hepatoprotectants. Modern research supports antioxidant, anti-inflammatory and liver-protective activity, with growing interest in metabolic/blood-sugar effects.[12, 13]
Preparations
Dosage
Duke (2002): about 0.5-1 g crushed seed three times daily in tea, or 0.05-0.2 mL of the fruit essential oil. Food amounts up to about 20 g/day are generally considered safe for adults. Avoid medicinal doses in pregnancy and in children given limited safety data. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
Drug Class Interactions
Not documented
References & Sources
- Samojlik, I., Petkovic, S., Stilinovic, N., Vukmirovic, S. and others (2016) 'Pharmacokinetic Herb-Drug Interaction between Essential Oil of Aniseed (Pimpinella anisum L., Apiaceae) and Acetaminophen and Caffeine: A Potential Risk for Clinical Practice', Phytotherapy Research, 30(2), pp. 253-259. doi:10.1002/ptr.5523 Preclinical
https://doi.org/10.1002/ptr.5523 - Hashemnia, M., Nikousefat, Z., Mohammadalipour, A., Zangeneh, M.M. and others (2019) 'Wound healing activity of Pimpinella anisum methanolic extract in streptozotocin-induced diabetic rats', Journal of Wound Care, 28(Sup10), pp. S26-S36. doi:10.12968/jowc.2019.28.Sup10.S26 Preclinical
https://doi.org/10.12968/jowc.2019.28.Sup10.S26 - Samojlik, I., Mijatovic, V., Petkovic, S., Skrbic, B. and others (2012) 'The influence of essential oil of aniseed (Pimpinella anisum, L.) on drug effects on the central nervous system', Fitoterapia, 83(8), pp. 1466-1473. doi:10.1016/j.fitote.2012.08.012 Preclinical
https://doi.org/10.1016/j.fitote.2012.08.012 - Changizi-Ashtiyani, S., Seddigh, A., Najafi, H., Hossaini, N. and others (2017) 'Pimpinella anisum L. ethanolic extract ameliorates the gentamicin-induced nephrotoxicity in rats', Nephrology (Carlton), 22(2), pp. 133-138. doi:10.1111/nep.12953 Preclinical
https://doi.org/10.1111/nep.12953 - Mushtaq, A., Habib, F., Manea, R., Anwar, R. and others (2023) 'Biomolecular Screening of Pimpinella anisum L. for Antioxidant and Anticholinesterase Activity in Mice Brain', Molecules, 28(5), pp. 2217. doi:10.3390/molecules28052217 Preclinical
https://doi.org/10.3390/molecules28052217 - Alotaibi, M.F (2020) 'Pimpinella anisum extract attenuates spontaneous and agonist-induced uterine contraction in term-pregnant rats', Journal of Ethnopharmacology, 254, pp. 112730. doi:10.1016/j.jep.2020.112730 Preclinical
https://doi.org/10.1016/j.jep.2020.112730 - Dawoud, T. and Ameen, F (2023) 'Unveiling the bioactive potential of Pimpinella anisum L. leaf extracts: Chromatographic profiling, antimicrobial efficiency, and cytotoxicity analysis', Biomedical Chromatography, 37(12), pp. e5739. doi:10.1002/bmc.5739 Preclinical
https://doi.org/10.1002/bmc.5739 - Alrasheid, A.A., Kabbashi, A.S., Ali, A.O., Alrasheed, A.A. and others (2024) 'Nutritional Value and in vitro Antigiardial Activity of Anise (Pimpinella anisum L.) Seeds', Chemistry & Biodiversity, 21(3), pp. e202301254. doi:10.1002/cbdv.202301254 Preclinical
https://doi.org/10.1002/cbdv.202301254 - Almaimani, G., Jabbar, A.A.J., Ibrahim, I.A.A., Alzahrani, A.R. and others (2024) 'Anise (Pimpinella anisum L.) attenuates azoxymethane-induced colorectal cancer by antioxidant, anti-inflammatory, and anti-apoptotic pathways in rats', Environmental Science and Pollution Research International, 31(3), pp. 4439-4452. doi:10.1007/s11356-023-31349-z Preclinical
https://doi.org/10.1007/s11356-023-31349-z - Shrief, A.I., Abdel-Hamid, A.A.M., Moustafa, A. and El-Mohandes, E (2022) 'The possible protective role of Pimpinella anisum oil versus selenium on aspartame induced changes in rat cerebellar cortex', Ultrastructural Pathology, 46(6), pp. 497-510. doi:10.1080/01913123.2022.2136809 Preclinical
https://doi.org/10.1080/01913123.2022.2136809 - Jaradat N, et al. A Multidimensional Review of Pimpinella anisum. Molecules. 2023. https://pmc.ncbi.nlm.nih.gov/articles/PMC10035495/ (2023) 'https://pmc.ncbi.nlm.nih.gov/articles/PMC10035495/'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC10035495/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC10035495/ - McCormick Science Institute. Anise Potential Health Benefits. https://www.mccormickscienceinstitute.com/our-research/scientific-overviews/anise-potential-health-benefits. Available at: https://www.mccormickscienceinstitute.com/our-research/scientific-overviews/anise-potential-health-benefits Traditional / reference
https://www.mccormickscienceinstitute.com/our-research/scientific-overviews/anise-potential-health-benefits - Shahrajabian MH, Sun W, Cheng Q. Anise (2019) ';5(1)', 5(1). doi:10.1080/23312025.2019.1673688 Traditional / reference
https://doi.org/10.1080/23312025.2019.1673688 - Shojaii A, Abdollahi Fard M. Review of pharmacological properties and chemical constituents of Pimpinella anisum. ISRN Pharm. 2012;2012:510795. https://pmc.ncbi.nlm.nih.gov/articles/PMC3405664/ (2012) ';2012:510795'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC3405664/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC3405664/ - Singletary KW. Anise: Potential Health Benefits. Nutrition Today. 2022;57 (2022) ';57(2):73-80', 57(2). Available at: https://journals.lww.com/nutritiontodayonline/fulltext/2022/03000/anise__potential_health_benefits.10.aspx Traditional / reference
https://journals.lww.com/nutritiontodayonline/fulltext/2022/03000/anise__potential_health_benefits.10.aspx - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - King County Noxious Weeds (2024) 'Poison hemlock (Conium maculatum) identification and control'. Available at: https://kingcounty.gov/en/dept/dnrp/nature-recreation/environment-ecology-conservation/noxious-weeds/identification-control/poison-hemlock Traditional / reference
https://kingcounty.gov/en/dept/dnrp/nature-recreation/environment-ecology-conservation/noxious-weeds/identification-control/poison-hemlock - North Carolina Extension Gardener Plant Toolbox (2024) 'Conium maculatum (Poison Hemlock)'. Available at: https://plants.ces.ncsu.edu/plants/conium-maculatum/ Traditional / reference
https://plants.ces.ncsu.edu/plants/conium-maculatum/ - Dayan, A.D (2024) 'Death of Socrates: a likely case of poison hemlock (Conium maculatum) poisoning', Clinical Toxicology (Philadelphia, Pa.), 62(1), pp. 56-60. doi:10.1080/15563650.2024.2309328 Clinical study
https://doi.org/10.1080/15563650.2024.2309328
- Abenavoli, L., Izzo, A.A., Milic, N., Cicala, C., Santini, A. and Capasso, R (2018) 'Milk thistle (Silybum marianum): A concise overview on its chemistry, pharmacological, and nutraceutical uses in liver diseases', Phytotherapy Research, 32(11), pp. 2202-2213. doi:10.1002/ptr.6171 Meta-analysis / review
https://doi.org/10.1002/ptr.6171 - Bahmani, M., Shirzad, H., Rafieian, S. and Rafieian-Kopaei, M (2015) 'Silybum marianum: Beyond Hepatoprotection', Journal of Evidence-Based Complementary & Alternative Medicine, 20(4), pp. 292-301. doi:10.1177/2156587215571116 Meta-analysis / review
https://doi.org/10.1177/2156587215571116 - Wang, X., Zhang, Z. and Wu, S (2020) 'Health Benefits of Silybum marianum: Phytochemistry, Pharmacology, and Applications', Journal of Agricultural and Food Chemistry, 68(42), pp. 11644-11664. doi:10.1021/acs.jafc.0c04791 Meta-analysis / review
https://doi.org/10.1021/acs.jafc.0c04791 - Marmouzi, I., Bouyahya, A., Ezzat, S.M., El Jemli, M. and Kharbach, M (2020) 'The food plant Silybum marianum (L.) Gaertn.: Phytochemistry, Ethnopharmacology and clinical evidence', Journal of Ethnopharmacology, 265, pp. 113303. doi:10.1016/j.jep.2020.113303 Meta-analysis / review
https://doi.org/10.1016/j.jep.2020.113303 - Greenlee, H., Abascal, K., Yarnell, E. and Ladas, E (2007) 'Clinical applications of Silybum marianum in oncology', Integrative Cancer Therapies, 6(2), pp. 158-165. doi:10.1177/1534735407301727 Meta-analysis / review
https://doi.org/10.1177/1534735407301727 - Shaker, E., Mahmoud, H. and Mnaa, S (2009) 'Silymarin, the antioxidant component and Silybum marianum extracts prevent liver damage', Food and Chemical Toxicology, 48(3), pp. 803-806. doi:10.1016/j.fct.2009.12.011 Preclinical
https://doi.org/10.1016/j.fct.2009.12.011 - Flora, K., Hahn, M., Rosen, H. and Benner, K (1998) 'Milk thistle (Silybum marianum) for the therapy of liver disease', American Journal of Gastroenterology, 93(2), pp. 139-143. doi:10.1111/j.1572-0241.1998.00139.x Meta-analysis / review
https://doi.org/10.1111/j.1572-0241.1998.00139.x - Csupor, D., Csorba, A. and Hohmann, J (2016) 'Recent advances in the analysis of flavonolignans of Silybum marianum', Journal of Pharmaceutical and Biomedical Analysis, 130, pp. 301-317. doi:10.1016/j.jpba.2016.05.034 Meta-analysis / review
https://doi.org/10.1016/j.jpba.2016.05.034 - Ball, K.R. and Kowdley, K.V (2005) 'A review of Silybum marianum (milk thistle) as a treatment for alcoholic liver disease', Journal of Clinical Gastroenterology, 39(6), pp. 520-528. doi:10.1097/01.mcg.0000165668.79530.a0 Meta-analysis / review
https://doi.org/10.1097/01.mcg.0000165668.79530.a0 - Tajmohammadi, A., Razavi, B.M. and Hosseinzadeh, H (2018) 'Silybum marianum (milk thistle) and its main constituent, silymarin, as a potential therapeutic plant in metabolic syndrome: A review', Phytotherapy Research, 32(10), pp. 1933-1949. doi:10.1002/ptr.6153 Meta-analysis / review
https://doi.org/10.1002/ptr.6153 - Ghahfarrokhi, S.H., Heidari-Soureshjani, S., Sherwin, C.M.T. and Azadegan-Dehkordi, Z (2024) 'Efficacy and Mechanisms of Silybum marianum, Silymarin, and Silibinin on Rheumatoid Arthritis and Osteoarthritis Symptoms: A Systematic Review', Current Rheumatology Reviews, 20(4), pp. 414-425. doi:10.2174/0115733971266397231122080247 Meta-analysis / review
https://doi.org/10.2174/0115733971266397231122080247 - Soleimani, V., Delghandi, P.S., Moallem, S.A. and Karimi, G (2019) 'Safety and toxicity of silymarin, the major constituent of milk thistle extract: An updated review', Phytotherapy Research. doi:10.1002/ptr.6361 Randomized trial
https://doi.org/10.1002/ptr.6361 - Fallah, M., Davoodvandi, A., Nikmanzar, S., Aghili, S., Mirazimi, S.M.A., Aschner, M., Rashidian, A., Hamblin, M.R., Chamanara, M., Naghsh, N. and Mirzaei, H (2021) 'Silymarin (milk thistle extract) as a therapeutic agent in gastrointestinal cancer', Biomedicine & Pharmacotherapy. doi:10.1016/j.biopha.2021.112024 Preclinical
https://doi.org/10.1016/j.biopha.2021.112024 - Voroneanu, L., Nistor, I., Dumea, R., Apetrii, M. and Covic, A (2016) 'Silymarin in Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials', Journal of Diabetes Research. doi:10.1155/2016/5147468 Meta-analysis / review
https://doi.org/10.1155/2016/5147468 - Zhou, J., Chen, Y., Yu, J., Li, T., Lu, Z., Chen, Y., Zhang, X. and Ye, F (2021) 'The efficacy of novel metabolic targeted agents and natural plant drugs for nonalcoholic fatty liver disease treatment: A PRISMA-compliant network meta-analysis of randomized controlled trials', Medicine (Baltimore), 100(12). doi:10.1097/MD.0000000000024884 Meta-analysis / review
https://doi.org/10.1097/MD.0000000000024884 - Fuhr, U., Beckmann-Knopp, S., Jetter, A., Lueck, H. and Mengs, U (2007) 'The effect of silymarin on oral nifedipine pharmacokinetics', Planta Medica, 73(14), pp. 1429-1435. doi:10.1055/s-2007-990256 Randomized trial
https://doi.org/10.1055/s-2007-990256 - Hadi, A., Pourmasoumi, M., Mohammadi, H., Symonds, M. and Miraghajani, M (2018) 'The effects of silymarin supplementation on metabolic status and oxidative stress in patients with type 2 diabetes mellitus: A systematic review and meta-analysis of clinical trials', Complementary Therapies in Medicine, 41, pp. 311-319. doi:10.1016/j.ctim.2018.08.010 Meta-analysis / review
https://doi.org/10.1016/j.ctim.2018.08.010
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.