Curcumin Extract (Curcuma longa (extract)): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does curcumin work as an anti-inflammatory?

Curcumin works by inhibiting multiple inflammatory pathways in the body, including NF-kappaB, COX-2, and various cytokines like interleukin-6 and tumor necrosis factor-alpha. It also acts as a potent antioxidant by neutralizing free radicals and boosting the body's own antioxidant enzymes. This multi-target mechanism explains why curcumin shows therapeutic potential across various inflammatory conditions. Evidence level: A for anti-inflammatory mechanisms.

Can I take curcumin with blood thinners?

Curcumin should not be taken with blood thinners like warfarin, aspirin, or clopidogrel without medical supervision. Curcumin has mild anti-platelet effects and may increase bleeding risk when combined with anticoagulant medications. Additionally, curcumin may interact with certain chemotherapy drugs and medications metabolized by the liver. Always consult your healthcare provider before combining curcumin supplements with prescription medications, especially if you have a bleeding disorder or are scheduled for surgery.

What is the recommended daily dosage for curcumin extract?

Clinical studies typically use 500-1000mg of enhanced bioavailability curcumin extract daily, divided into one or two doses. The exact dosage depends on the formulation—standardized extracts with piperine, phospholipids (like Meriva), or other absorption-enhancing technologies have different potency recommendations. Whole turmeric powder contains only 2-5% curcumin, so therapeutic doses require concentrated extracts. Evidence level: A for enhanced formulations at these dosage ranges.

Is curcumin safe to take during pregnancy?

Curcumin supplements are considered unsafe during pregnancy and should be avoided. While culinary amounts of turmeric in food are generally acceptable, concentrated curcumin extracts may stimulate uterine contractions or affect hormone levels. Limited safety data exists for pregnant or breastfeeding women. Women who are pregnant, trying to conceive, or breastfeeding should consult their healthcare provider before using any curcumin supplements.

What is curcumin extract used for?

Curcumin extract is primarily used for its anti-inflammatory and antioxidant properties. Research supports its use for joint health and reducing symptoms of osteoarthritis, cognitive support and brain health, mood support, and cardiovascular health. Unlike whole turmeric, standardized curcumin extracts provide concentrated, clinically-studied doses with enhanced absorption. Evidence level: A for joint and inflammatory applications, with growing evidence for cognitive and mood support.

Who should not take curcumin supplements?

Curcumin supplements should be avoided by individuals with gallstones, bile duct obstruction, or bleeding disorders, as curcumin stimulates bile production and has mild blood-thinning properties. People scheduled for surgery should stop curcumin at least two weeks beforehand due to bleeding risk. Those with GERD or sensitive stomachs may experience increased gastrointestinal symptoms. Always consult a healthcare provider if you have underlying health conditions or take prescription medications.

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

Curcumin and Curcuma longa extract are bioactive compounds used primarily for their anti-inflammatory and antioxidant properties, showing efficacy in treating various forms of arthritis [PMID:35935936, PMID:31398884].

Contexte

Curcumin is a hydrophobic polyphenol and bioactive molecule present in the rhizome of the Curcuma longa (turmeric) plant [PMID:31398884, PMID:31636851].

Usages traditionnels

Turmeric root has been used medicinally in China and India for thousands of years [PMID:23594449].

Composés actifs

The chemical components of Curcuma longa L. mainly consist of curcumin and turmeric volatile oil [PMID:35935936]; other major active components include bisdemethoxycurcumin and bisacurone [PMID:40583343].

Mécanisme d'action

Curcumin exhibits antioxidant, anti-inflammatory, anti-microbial, and cardio-protective effects [PMID:31398884]. It targets the proinflammatory transcription factor NF-kB [PMID:38809154] and modulates pathways including PI3K/Akt/mTOR and AR signaling [PMID:41109942].

Preuves cliniques

Preuve AOsteoarthritis (OA)

Curcuma longa extract and curcumin significantly decrease VAS and WOMAC scores (pain, function, and stiffness) compared to placebo [PMID:34017975]. They demonstrated large and clinically important effects for short-term pain reduction [PMID:29018060] and showed similar efficacy to diclofenac in knee OA [PMID:30975196].

Preuve AGeneral Arthritis

Curcumin improves symptoms and inflammation in patients with Ankylosing Spondylitis, Rheumatoid Arthritis, Osteoarthritis, Juvenile idiopathic arthritis, and gout/hyperuricemia [PMID:35935936].

Preuve BType 2 Diabetes Mellitus (T2DM)

Curcumin extract (1500 mg/day) improves beta cell functions in obese patients with T2DM [PMID:39354480].

Preuve BPsoriasis Vulgaris

Oral curcumin (Meriva) as an adjuvant to topical steroids achieved a higher reduction in PASI values and reduced IL-22 serum levels [PMID:26090395].

Preuve BChronic Kidney Disease (CKD)

Curcumin (Meriva) significantly reduced plasma pro-inflammatory mediators such as CCL-2 [PMID:35011106].

Preuve A

Sécurité et effets indésirables

Curcumin and Curcuma longa extract are generally shown to be safe and comparable to placebo in terms of adverse events [PMID:35935936, PMID:34017975]. The most common side effects are nausea and diarrhea [PMID:23594449].

Interactions médicamenteuses

Theoretical interactions exist due to effects on metabolic enzymes and transport proteins, but clinical reports do not support meaningful interactions; caution is advised with chemotherapy agents [PMID:23594449].

Posologie et administration

Doses in clinical trials for arthritis ranged from 120 mg to 1500 mg for 4-36 weeks [PMID:35935936]. For T2DM, a dose of 1500 mg/day was used [PMID:39354480]. No PubMed data available. Consult a healthcare provider.

Synthèse des preuves

Strong evidence (Level A) supports the use of curcumin for pain and inflammation in osteoarthritis and various arthritic conditions. Emerging evidence (Level B) suggests benefits for T2DM, psoriasis, and CKD, though bioavailability remains a significant challenge addressed by novel formulations.

Sources PubMed

1.PMID: 35935936 (2022) — Efficacy and Safety of Curcumin and Curcuma longa Extract in the Treatment of Arthritis: A Systematic Review and Meta-Analysis of Randomized Controlled Trial. · Frontiers in immunology
2.PMID: 29018060 (2018) — Dietary supplements for treating osteoarthritis: a systematic review and meta-analysis. · British journal of sports medicine
3.PMID: 34017975 (2021) — The efficacy and safety of Curcuma longa extract and curcumin supplements on osteoarthritis: a systematic review and meta-analysis. · Bioscience reports
4.PMID: 31398884 (2019) — Curcumin and Type 2 Diabetes Mellitus: Prevention and Treatment. · Nutrients
5.PMID: 35979355 (2022) — Curcumin and Curcuma longa Extract in the Treatment of 10 Types of Autoimmune Diseases: A Systematic Review and Meta-Analysis of 31 Randomized Controlled Trials.

Curcumin Extract

Sources et citations

Calculer une dose sûre de Curcumin Extract

Turmeric

Boswellia

Turmeric Curcumin

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Interactions médicamenteuses

Posologie et administration

Synthèse des preuves

Sources PubMed

Sources gouvernementales

Curcumin Extract

Sources et citations

Calculer une dose sûre de Curcumin Extract

Plantes associées

Turmeric

Boswellia

Turmeric Curcumin

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Interactions médicamenteuses

Posologie et administration

Synthèse des preuves

Sources PubMed

Sources gouvernementales