This product is not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your healthcare provider before using herbs, especially if you are pregnant, nursing, taking medications, or have a medical condition.
How does Capparis spinosa work to reduce inflammation?
Capparis spinosa exerts anti-inflammatory effects primarily through its flavonoid content, particularly quercetin, kaempferol, and rutin. These compounds inhibit pro-inflammatory enzymes such as cyclooxygenase (COX) and lipoxygenase, while also reducing the production of inflammatory cytokines. The glucosinolates present in capers may also contribute by breaking down into isothiocyanates, which modulate inflammatory signaling pathways. Evidence Level: C (preclinical studies).
Can Capparis spinosa interact with medications?
Capparis spinosa may interact with antidiabetic medications due to its documented blood glucose-lowering effects, potentially causing additive hypoglycemia when combined with pharmaceutical antidiabetics. Additionally, capers contain vitamin K, which could theoretically interfere with anticoagulant medications like warfarin, though clinical significance at typical dietary amounts remains unestablished. Patients taking diabetes medications or blood thinners should consult a healthcare provider before therapeutic use. Evidence Level: C (theoretical and preclinical).
What is the recommended dosage for Capparis spinosa?
The typical adult dosage for Capparis spinosa is 1-3 grams of dried root bark daily, or alternatively 5-10 capers per day for therapeutic purposes. These recommendations are based on traditional use and available pharmacological data rather than standardized clinical trials. Dosage may vary depending on the specific preparation (dried herb, extract, or fresh capers) and intended use. Evidence Level: C (traditional and preclinical evidence).
Is Capparis spinosa safe during pregnancy and breastfeeding?
Capparis spinosa is considered unsafe during pregnancy and should be avoided. The herb has traditionally been associated with emmenagogue effects, meaning it may stimulate uterine contractions and potentially induce menstruation or threaten pregnancy. There is insufficient safety data regarding use during breastfeeding. Pregnant or nursing individuals should not use Capparis spinosa medicinally. Culinary amounts of capers as a food condiment are generally regarded differently, but caution is still advised.
What are the main health benefits of capers (Capparis spinosa)?
Capparis spinosa demonstrates three primary therapeutic benefits supported by preclinical research: anti-inflammatory effects useful for conditions involving chronic inflammation, hepatoprotective properties that may support liver function and protect against toxin-induced damage, and antidiabetic activity that helps regulate blood glucose levels. The herb's flavonoids and glucosinolates contribute to these effects. While traditional use spans centuries in Mediterranean medicine, human clinical trials remain limited. Evidence Level: C (primarily animal and in vitro studies).
What side effects can Capparis spinosa cause?
Capparis spinosa is generally well-tolerated at recommended doses, with side effects being rare. Reported adverse reactions primarily include allergic responses, particularly in individuals with sensitivities to plants in the Capparidaceae family or related species. Some individuals may experience gastrointestinal discomfort at higher doses. The high sodium content of preserved capers (when consumed as a food) may be a consideration for those requiring sodium restriction. No serious adverse events have been documented in available literature. Evidence Level: C.
PubMed-compiled information sheet
This sheet was compiled from PubMed (NIH) abstracts using AI assistance. Every factual claim is cited to a real PubMed article (see the source list). It has not yet been human-reviewed — confirm with a healthcare provider before use.
Compiled from 30 PubMed articles · model: gemma4:31b
Summary
Capparis spinosa, known as the caper bush, is an aromatic perennial shrub used in traditional medicine and as a food condiment [PMID:36064949, PMID:35935860]. It is recognized for its diverse pharmacological activities, including antioxidant, antidiabetic, and antibacterial effects [PMID:27406313, PMID:28551550].
Background
Capparis spinosa L. is a xerophytic perennial shrub of the Capparaceae family, endemic to the Mediterranean basin and parts of Western Asia and Africa [PMID:36064949, PMID:28551550, PMID:35935860]. The plant is highly adaptable to harsh environments, including high salinity and drought [PMID:29118777, PMID:38072942].
Traditional uses
C. spinosa has been utilized in conventional phytomedicine and folk medicine for a long time to treat metabolic and infectious diseases [PMID:36064949, PMID:35935860]. Traditional therapeutic applications were also reported among the Ancient Romans [PMID:29364841].
Active compounds
Bioactive constituents include polyphenols, flavonoids (such as quercetin and rutin), alkaloids, glucosinolates, phenolic acids, volatile oils, fatty acids, and polysaccharides [PMID:36064949, PMID:35935860, PMID:36587515, PMID:27489055, PMID:11449469].
Mechanism of action
Antihyperglycemic effects are thought to occur by reducing carbohydrate absorption in the small intestine, inhibiting hepatic gluconeogenesis, enhancing tissue glucose uptake, and protecting or regenerating beta cells [PMID:28551550]. In vitro, aqueous fractions have been shown to induce an anti-inflammatory response by inhibiting IL-17 and inducing IL-4 gene expression in human peripheral blood mononuclear cells [PMID:27483999].
Caper fruit consumption appears to decrease liver enzymes, specifically ALT [PMID:37806093]
Evidence CDiabetes
Reviews indicate antihyperglycemic and hypolipidemic activities, though one review notes insufficient evidence that extracts improve cardiovascular or diabetes biomarkers [PMID:28551550, PMID:29364841]
Evidence DGastric Ulcer (Rat model)
C. spinosa extract demonstrated gastroprotective effects against indomethacin-induced ulcers [PMID:36883165]
Evidence DCancer (In vitro)
Hydroalcoholic extracts showed anti-cancer effects on HeLa, MCF7, Saos, and Fibroblast cancer cells [PMID:30800242]
Safety & adverse effects
While generally described as having negligible adverse effects [PMID:27406313], there is a reported case of food allergy to caper [PMID:23653983]. Additionally, plasticizers such as DEHT and DEHP have been isolated from the leaves, which may be due to environmental contamination [PMID:37505806].
Evidence summary
The evidence consists primarily of in vitro studies, animal models, and literature reviews (Level C/D), with one systematic review and meta-analysis of five RCTs (Level A) providing evidence for the reduction of liver enzymes (ALT) following caper fruit consumption.
PubMed sources
1.PMID: 36064949 (2022) — Phytochemistry, Biological Activities, Therapeutic Potential, and Socio-Economic Value of the Caper Bush (Capparis Spinosa L.). · Chemistry & biodiversity
2.PMID: 27406313 (2016) — Pharmacological Effects of Capparis spinosa L. · Phytotherapy research : PTR
3.PMID: 28551550 (2017) — Antidiabetic properties of Capparis spinosa L. and its components. · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
4.PMID: 35935860 (2022) — Caper (Capparis spinosa L.): An Updated Review on Its Phytochemistry, Nutritional Value, Traditional Uses, and Therapeutic Potential. · Frontiers in pharmacology
5.PMID: 37806093 (2023) — Effect of caper fruit (Capparis spinosa L.) consumption on liver enzymes, lipid profile, fasting plasma glucose, and weight loss. A systematic review and a preliminary meta-analysis of randomized controlled trials.
Government sources
No direct government monograph is available for this herb. The content below is AI-generated and has not been verified against an authoritative government source. Use the search links to check official sources before relying on this information.
6.PMID: 36587515 (2023) — Capparis spinosa L. as a potential source of nutrition and its health benefits in foods: A comprehensive review of its phytochemistry, bioactivities, safety, and application. · Food chemistry
7.PMID: 27489055 (2016) — Metabolomic study of wild and cultivated caper (Capparis spinosa L.) from different areas of Sardinia and their comparative evaluation. · Journal of mass spectrometry : JMS
8.PMID: 29364841 (2018) — Phytochemical and Pharmacological Properties of Capparis spinosa as a Medicinal Plant. · Nutrients
10.PMID: 38072942 (2023) — Germplasm characterization and SDS-PAGE analysis of caper (Capparis spinosa L.) from different provenances. · BMC plant biology
11.PMID: 30800242 (2019) — The Anti-cancer Effects of Capparis spinosa Hydroalcoholic Extract. · Avicenna journal of medical biotechnology
12.PMID: 37505806 (2023) — Isolation of Two Plasticizers, Bis(2-ethylhexyl) Terephthalate and Bis(2-ethylhexyl) Phthalate, from Capparis spinosa L. Leaves. · Chemistry & biodiversity
13.PMID: 36883165 (2022) — Gastroprotective Effect of Capparis spinosa on Indomethacin-induced Gastric Ulcer in Rats. · Archives of Razi Institute
14.PMID: 27483999 (2016) — Capparis Spinosa L. promotes anti-inflammatory response in vitro through the control of cytokine gene expression in human peripheral blood mononuclear cells. · BMC immunology
15.PMID: 23653983 (2013) — Food allergy to caper (Capparis spinosa). · Journal of investigational allergology & clinical immunology
16.PMID: 29118777 (2017) — Capparis spinosa L. in A Systematic Review: A Xerophilous Species of Multi Values and Promising Potentialities for Agrosystems under the Threat of Global Warming. · Frontiers in plant science