Buckwheat Herb (Fagopyrum esculentum): Benefits, Dosage, Safety & Evidence

Questions fréquentes

How does buckwheat herb strengthen capillaries and blood vessels?

Buckwheat herb strengthens capillaries primarily through its high rutin content, a flavonoid that reduces capillary permeability and fragility. Rutin works by inhibiting the enzyme hyaluronidase, which breaks down hyaluronic acid in blood vessel walls. This protective effect helps maintain structural integrity of capillaries, improves microcirculation, and reduces symptoms associated with venous insufficiency such as varicose veins and easy bruising. Evidence Level: C.

Does buckwheat interact with blood pressure or blood thinning medications?

Buckwheat herb may interact with antihypertensive medications due to its mild blood pressure-lowering effects, potentially causing additive hypotension. The rutin content may also have mild anticoagulant properties, which could enhance the effects of warfarin, aspirin, or other blood-thinning medications. Patients taking these medications should consult a healthcare provider before using buckwheat supplements and monitor for signs of excessive bleeding or hypotension. Evidence Level: C.

What is the recommended dosage for buckwheat herb as a supplement?

The standard adult dosage for buckwheat herb is 60-100mg of rutin standardized extract daily, or 10-15g of dried herb prepared as an infusion or tea taken up to three times daily. Standardized extracts ensure consistent rutin delivery for therapeutic capillary-strengthening effects. For varicose veins or hypertension support, treatment duration of 4-6 weeks is typical. Consult a qualified herbalist for condition-specific dosing. Evidence Level: C/Traditional.

Is buckwheat herb safe to use during pregnancy and breastfeeding?

Buckwheat herb is generally considered safe during pregnancy and breastfeeding when used in recommended therapeutic doses. The herb does not contain known uterine stimulants or compounds associated with fetal harm. Buckwheat grain is also a nutritious gluten-free food option during pregnancy. However, pregnant women should consult their healthcare provider before using concentrated rutin supplements, and those with buckwheat allergies should avoid it entirely. Evidence Level: Traditional.

What are the side effects of buckwheat herb supplements?

Buckwheat herb may cause photosensitivity reactions in susceptible individuals, resulting in skin sensitivity to sunlight and potential sunburn. Allergic reactions can occur, particularly in people with known buckwheat or grain allergies, and may include skin rash, itching, gastrointestinal upset, or respiratory symptoms. Those with documented buckwheat allergy should avoid all buckwheat products. Discontinue use if any adverse reactions develop. Evidence Level: Traditional.

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

Buckwheat (Fagopyrum esculentum) is a gluten-free pseudocereal known for its high nutritional value and bioactive compounds that promote various health benefits [PMID:37818573, PMID:37640053].

Contexte

Buckwheat is a member of the Fagopyrum genus in the Polygonaceae family [PMID:37818573]. Common buckwheat (Fagopyrum esculentum) is one of the two main cultivated species, alongside Tartary buckwheat (Fagopyrum tataricum) [PMID:32351305, PMID:37482536]. It is an ancient domesticated crop characterized by a short growth period and high adaptability to adverse environments [PMID:37640053].

Usages traditionnels

Buckwheat has a long tradition of both edible and medicinal use [PMID:27104519]. In some regions, the buckwheat herb is used as a functional food [PMID:27046048].

Composés actifs

Bioactive compounds include flavonoids (primarily rutin and quercetin) [PMID:33916396, PMID:26270637], D-chiro-inositol (DCI) [PMID:26270637], and proteins [PMID:26270637]. Other identified compounds include phenolic acids, fagopyrins, triterpenoids, steroids, fatty acids, and minerals [PMID:35216414, PMID:27104519].

Mécanisme d'action

Buckwheat proteins may lower cholesterol by increasing the excretion of fecal sterols and reducing micelle cholesterol uptake in caco-2 cells [PMID:25363871]. Digestion-resistant peptides are thought to facilitate the elimination of bile acids, thereby reducing serum cholesterol concentrations [PMID:33374117].

Preuves cliniques

Preuve DHyperlipidemia/Cholesterol

Buckwheat protein shows powerful hypocholesterolemic activity in rats, stronger than soy protein, and reduces low-density lipoprotein cholesterol [PMID:25363871].

Preuve DGallstones

Consumption of buckwheat protein suppresses cholesterol-induced gallstones in rodents [PMID:25363871].

Preuve CGeneral Health (Anti-inflammatory, Antidiabetic, Neuroprotective)

Reviews suggest buckwheat possesses antidiabetic, anti-inflammatory, neuroprotective, and anticancer activities [PMID:37818573, PMID:26270637, PMID:33357186].

Preuve CHypertension

Buckwheat is reported to provide benefits in the improvement of hypertension conditions [PMID:26270637, PMID:26948610].

Sécurité et effets indésirables

Buckwheat can cause IgE-mediated allergies, including severe allergic reactions and anaphylaxis [PMID:33806876]. Allergy types include immediate food allergy, food-dependent exercise-induced anaphylaxis (FDEIA), and food protein-induced enterocolitis syndrome (FPIES) [PMID:38976201]. Prevalence in Japan, Korea, and parts of China is estimated at 0.1-0.4% [PMID:33806876].

Synthèse des preuves

The current evidence consists primarily of review articles and animal/in vitro studies (Level C and D), indicating strong potential for hypolipidemic and antioxidant effects, but lacking large-scale human clinical trials.

Sources PubMed

1.PMID: 38976201 (2024) — Buckwheat Allergy in Asia. · Current allergy and asthma reports
2.PMID: 33916396 (2021) — Tartary Buckwheat in Human Nutrition. · Plants (Basel, Switzerland)
3.PMID: 37818573 (2024) — A Recent Advance on Phytochemicals, Nutraceutical and Pharmacological Activities of Buckwheat. · Combinatorial chemistry & high throughput screening
4.PMID: 25363871 (2015) — Hypolipidemic activity of common (Fagopyrum esculentum Moench) and tartary (Fagopyrum tataricum Gaertn.) buckwheat. · Journal of the science of food and agriculture
5.PMID: 32765557 (2020) — Fagopyrum esculentum ssp. ancestrale-A Hybrid Species Between Diploid F. cymosum and F. esculentum. · Frontiers in plant science

Buckwheat Herb

Sources et citations

Calculer une dose sûre de Buckwheat Herb

Alpinia zerumbet

Indian Kalonji Seed

Chapéu de Couro

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Synthèse des preuves

Sources PubMed

Sources gouvernementales

Buckwheat Herb

Sources et citations

Calculer une dose sûre de Buckwheat Herb

Plantes associées

Alpinia zerumbet

Indian Kalonji Seed

Chapéu de Couro

Questions fréquentes

Résumé

Contexte

Usages traditionnels

Composés actifs

Mécanisme d'action

Preuves cliniques

Sécurité et effets indésirables

Synthèse des preuves

Sources PubMed

Sources gouvernementales