Munyeroo (Portulaca oleracea): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does purslane reduce inflammation in the body?

Purslane (Portulaca oleracea) reduces inflammation through multiple biochemical pathways. Its omega-3 fatty acids, particularly alpha-linolenic acid, inhibit pro-inflammatory prostaglandin synthesis. The betalains and flavonoids function as antioxidants, neutralizing free radicals that drive inflammatory responses. Glutathione supports cellular detoxification processes. These compounds work synergistically to modulate inflammatory markers. Traditional use across Aboriginal Australian, Middle Eastern, and European medicine systems supports these anti-inflammatory applications (Evidence Level C).

Does purslane interact with blood thinners or diabetes medications?

Purslane contains significant omega-3 fatty acids with mild blood-thinning properties, which may theoretically enhance anticoagulant effects when combined with medications like warfarin. Additionally, purslane demonstrates hypoglycemic activity that could potentiate diabetes medications, potentially causing blood sugar to drop too low. While direct clinical interaction studies are limited, individuals taking anticoagulants, antiplatelet drugs, or diabetes medications should consult a healthcare provider before consuming medicinal doses of purslane.

How much purslane should I eat daily for health benefits?

As a traditional food medicine, purslane can be consumed freely as a vegetable. A typical medicinal dose ranges from 30-50 grams of fresh herb daily. This amount provides meaningful levels of omega-3 fatty acids, potassium, glutathione, and antioxidant compounds. Purslane can be eaten raw in salads, lightly cooked as a side dish, or added to soups. Start with smaller amounts if unfamiliar with the plant, and always harvest from clean, uncontaminated areas.

Is purslane safe to eat during pregnancy?

Purslane is considered safe when consumed in normal culinary amounts during pregnancy, supported by centuries of traditional use as a food across multiple cultures. However, concentrated medicinal doses are not recommended during pregnancy due to insufficient safety data. The plant's oxalate content and other bioactive compounds may not be appropriate in large amounts. Pregnant women should stick to food-level portions and consult their healthcare provider for personalized guidance regarding purslane consumption.

Can I eat purslane if I have a history of kidney stones?

Individuals with kidney stone history should avoid or strictly limit purslane consumption. The plant contains high oxalate levels, which can bind with calcium to form calcium oxalate stones, the most common type of kidney stone. Those prone to recurrent stones or with existing renal conditions should consult a healthcare provider before including purslane in their diet. Alternative low-oxalate leafy greens like kale or bok choy may provide similar nutritional benefits with lower risk.

What are the health benefits of eating purslane?

Purslane offers significant nutritional and therapeutic benefits. It ranks among the richest plant sources of omega-3 fatty acids, supporting cardiovascular and cognitive health. The plant delivers substantial potassium, glutathione, betalains, and flavonoids with documented antioxidant and anti-inflammatory properties. Traditional applications include supporting digestive function, promoting wound healing, and addressing inflammatory conditions (Evidence Level C - traditional use with preliminary research support). Regular consumption as a food provides these benefits safely for most individuals.

Fiche d'information compilée à partir de PubMed

Cette fiche a été compilée à partir de résumés PubMed (NIH) avec l'assistance d'une IA. Chaque affirmation factuelle est citée par un article PubMed réel (voir la liste des sources). Elle n'a pas encore été révisée par un humain — confirmez auprès d'un professionnel de santé avant utilisation.

Compilé à partir de 30 articles PubMed · modèle : gemma4:31b

Résumé

Portulaca oleracea (purslane) is a cosmopolitan annual succulent herb used as both a nutritious vegetable and a traditional medicine [PMID:25085039, PMID:25692148]. It is recognized for its wide spectrum of pharmacological properties, including anti-inflammatory, antioxidant, and antidiabetic activities [PMID:25692148, PMID:35028454].

Contexte

Portulaca oleracea L., also known as purslane, pigweed, or fatweed, is an annual succulent herb in the Portulacaceae family found globally [PMID:25085039, PMID:25692148]. It is a climate-resilient species that integrates both C4 and crassulacean acid metabolism (CAM) photosynthesis pathways [PMID:33723625, PMID:37587696].

Usages traditionnels

Traditionally used as a nutritious food and ethnomedicinal treatment for various ailments, including gastrointestinal diseases, liver inflammation, arthritis, burns, cough, headache, and shortness of breath [PMID:36064150, PMID:36594059]. In Persian medicine, it is used for skin ailments [PMID:37872023].

Composés actifs

The plant is rich in omega-3 and 6 fatty acids (especially α-linolenic acid), ascorbic acid, glutathione, α-tocopherol, and β-carotene [PMID:25085039]. Other active constituents include polyphenols, polysaccharides, flavonoids, alkaloids, terpenoids, organic acids (such as Oleraceacid A and B), and minerals like potassium, magnesium, calcium, phosphorus, iron, and zinc [PMID:39675274, PMID:37375369, PMID:34749551, PMID:34091292, PMID:33723625].

Mécanisme d'action

Purslane may alleviate ulcerative colitis by restoring the intestinal barrier, gut microbiota, and metabolites [PMID:39675274]. It may protect endothelial function by reducing endoplasmic reticulum stress and oxidative stress through AMPK activation [PMID:3813625 la]. Some components, such as aurantiamide acetate, are predicted to act as Janus kinase 1 (JAK1) inhibitors [PMID:40538548]. Polysaccharides from the plant may exert antiviral effects by increasing IFN-α expression [PMID:37508085].

Preuves cliniques

Preuve AFasting Blood Glucose (FBG)

Purslane supplementation significantly reduced fasting blood glucose levels in both general glycemic index assessments and specifically in patients with type 2 diabetes mellitus [PMID:37661794, PMID:39454818]

Preuve AType 2 Diabetes Mellitus (Lipid Profile)

Supplementation significantly reduced total cholesterol, triglycerides, and LDL-C in patients with T2DM [PMID:39454818]

Preuve BChronic Hand Eczema

A randomized, double-blind, placebo-controlled trial evaluated the safety and efficacy of standardized purslane extract for adults with mild to moderate chronic hand eczema [PMID:37872023]

Preuve BNon-alcoholic Fatty Liver Disease (NAFLD)

A double-blind, randomized clinical trial investigated the benefits of a 700 mg purslane supplement over eight weeks on liver function and metabolic profiles [PMID:39135554]

Preuve DUlcerative Colitis

In mice, Portulaca oleracea alleviated DSS-induced body weight loss, disease activity index (DAI) score, and decreased C-reactive protein (CRP) and myeloperoxidase (MPO) responses [PMID:39675274]

Sécurité et effets indésirables

The safety of P. oleracea L. has been demonstrated in several clinical trials [PMID:30327154].

Synthèse des preuves

Evidence is strongest (Level A) for the reduction of fasting blood glucose and lipid profiles in diabetic patients via meta-analyses of RCTs. There is emerging clinical evidence (Level B) for its use in NAFLD and chronic hand eczema. Preclinical evidence (Level D) is extensive regarding anti-inflammatory and hepatoprotective effects in animal models.

Sources PubMed

1.PMID: 39675274 (2025) — Polyphenols-rich Portulaca oleracea L. (purslane) alleviates ulcerative colitis through restiring the intestinal barrier, gut microbiota and metabolites. · Food chemistry
2.PMID: 41139019 (2025) — Bioactivity and multi-omics profiling of purslane-derived nanovesicles with therapeutic implications in diabetic wounds. · Journal of advanced research
3.PMID: 36474567 (2022) — Effects of Portulaca oleracea L. (purslane) on the metabolic syndrome: A review. · Iranian journal of basic medical sciences
4.PMID: 36064150 (2022) — Ameliorative effects of Portulaca oleracea L. (purslane) on the metabolic syndrome: A review. · Journal of ethnopharmacology
5.PMID: 25085039 (2014) — Genetic improvement of purslane (Portulaca oleracea L.) and its future prospects.

Munyeroo

Sources et citations

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