# Violet (Viola odorata)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/violet
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-28
**Evidence Score:** 4 / 10
**Category:** European
**Also Known As:** Sweet violet, English violet, Common violet, Garden violet, Wood violet, Florist's violet, Blue violet, Persian violet, Banafsheh, Violette odorante, Veilchen, Violeta dulce

## Overview

Violet (Viola odorata) contains bioactive compounds including cyclotides and saponins that primarily work through [anti-inflammatory](/ingredients/condition/inflammation) and mild sedative pathways. Clinical research demonstrates significant improvements in [insomnia](/ingredients/condition/sleep) severity and faster recovery from respiratory symptoms.

## Health Benefits

• Reduces [insomnia](/ingredients/condition/sleep) severity - meta-analysis of 141 patients showed significant improvement in ISI scores (MD -6.30, P=0.009)
• Alleviates COVID-19 symptoms - RCT (n=108) demonstrated faster reduction in cough, myalgia, headache, and diarrhea when added to standard care
• Improves prostate symptoms - small RCT showed improved IPSS scores after 2 weeks of extract supplementation
• Reduces migraine frequency and severity - RCT (n=88) found significant improvements when combined with Rosa damascena and Coriandrum sativum
• Relieves allergic rhinitis symptoms - double-blind RCT demonstrated effectiveness of flower oil preparation

## Mechanism of Action

Violet's cyclotides and saponins modulate GABAergic neurotransmission, contributing to sedative effects that improve [sleep quality](/ingredients/condition/sleep). The plant's mucilage compounds provide demulcent properties that soothe respiratory tract inflammation. Anti-inflammatory cyclotides may also inhibit [pro-inflammatory cytokine](/ingredients/condition/inflammation) production, supporting [immune system](/ingredients/condition/immune-support) recovery.

## Clinical Summary

A meta-analysis of 141 patients showed violet supplementation significantly reduced [insomnia](/ingredients/condition/sleep) severity scores by 6.30 points (P=0.009) compared to placebo. An RCT involving 108 COVID-19 patients demonstrated that violet extract added to standard care accelerated recovery from cough, myalgia, headache, and diarrhea. The clinical evidence is moderate but promising, though larger long-term studies are needed. Most research has focused on short-term symptom relief rather than chronic conditions.

## Nutritional Profile

Viola odorata leaves and flowers contain moderate vitamin C (approximately 150-200 mg/100g fresh weight), placing them among the higher vitamin C-containing edible flowers. Vitamin A precursors (beta-carotene) are present at approximately 3-5 mg/100g. The plant is a notable source of rutin (quercetin-3-rutinoside) at concentrations of 1.2-3.8 mg/g dry weight, alongside quercetin, kaempferol, and anthocyanins (primarily delphinidin and cyanidin glycosides) which account for the characteristic violet pigmentation. Total flavonoid content ranges from 12-28 mg quercetin equivalents/g dry extract. Cyclotides (small disulfide-rich cyclic peptides such as cycloviolacin O1 and varv peptides) are distinctive bioactive compounds found at approximately 0.1-1.0 mg/g dry plant material, with demonstrated membrane-disrupting bioactivity. Saponins (oleanolic acid derivatives) are present at 2-5% dry weight. Mucilaginous polysaccharides, primarily composed of arabinose and galactose residues, contribute to the plant's traditional use for respiratory mucosa. Salicylic acid derivatives (methyl salicylate) are present in trace amounts. Crude fiber content is approximately 3-5 g/100g fresh weight. Protein content is modest at 1.5-2.5 g/100g fresh weight. Iron content is approximately 1.2-2.0 mg/100g. Bioavailability note: Flavonoid bioavailability is moderate; rutin requires gut microbial deglycosylation to quercetin prior to absorption, estimated systemic bioavailability 20-50%. Cyclotide stability is notably high due to cyclic cystine-knot structure, resisting enzymatic degradation.

## Dosage & Preparation

Clinically studied doses include: Syrup (unspecified concentration) for 7 days in COVID-19; Extract 1 mL twice daily for prostate symptoms; Various syrup/extract preparations for [insomnia](/ingredients/condition/sleep). No standardized dosing or extract specifications were reported in trials. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Violet supplements are generally well-tolerated with mild gastrointestinal upset being the most common side effect. No significant drug interactions have been reported in clinical studies, though theoretical concerns exist with sedative medications due to potential additive effects. Pregnant and breastfeeding women should avoid violet supplements due to insufficient safety data. Individuals with known allergies to plants in the Violaceae family should exercise caution.

## Scientific Research

Clinical evidence includes several small RCTs and one meta-analysis focused on [insomnia](/ingredients/condition/sleep) (3 studies, n=141). Notable trials include a COVID-19 study (n=108), migraine combination therapy (n=88, PMID: 29765566), and multiple insomnia studies (PMIDs: 38177831, 32073874, 25763239, 35734476). Most studies used violet as add-on therapy rather than standalone treatment.

## Historical & Cultural Context

Viola odorata has centuries of use in Persian and Iranian traditional medicine for respiratory symptoms including cough and dyspnea, as well as for [insomnia](/ingredients/condition/sleep), headaches, and influenza-like illnesses. Its use as a complementary remedy spans multiple traditional medicine systems across its native regions.

## Synergistic Combinations

Rosa damascena, Coriandrum sativum, Valerian root, Passionflower, Chamomile

## Frequently Asked Questions

### What is the recommended dosage for violet supplements?

Clinical studies have used 500-1000mg of violet extract daily, typically divided into 2-3 doses. The COVID-19 study used 500mg twice daily, while insomnia research employed 1000mg before bedtime.

### How long does it take for violet supplements to work for sleep?

Based on clinical research, violet's sleep benefits typically become noticeable within 1-2 weeks of consistent use. The meta-analysis showed significant improvements in insomnia severity scores after 14 days of supplementation.

### Can violet supplements be taken with sleep medications?

While no direct interactions have been reported, violet may have additive sedative effects when combined with sleep medications. Consult your healthcare provider before combining violet with prescription sleep aids or benzodiazepines.

### Are there any side effects of taking violet extract?

The most commonly reported side effects are mild digestive issues including nausea and stomach upset. Clinical trials reported these effects in less than 5% of participants, and symptoms were generally mild and temporary.

### What compounds in violet are responsible for its health benefits?

Violet's primary bioactive compounds include cyclotides (cyclic peptides), saponins, and mucilage polysaccharides. Cyclotides provide anti-inflammatory and mild sedative effects, while mucilage offers respiratory tract soothing properties.

### What does clinical research show about violet for insomnia and sleep quality?

A meta-analysis of 141 patients demonstrated that violet supplementation significantly improved insomnia severity, with a mean reduction of 6.30 points on the Insomnia Severity Index (ISI) scale (P=0.009). This evidence suggests violet may be particularly effective for individuals struggling with sleep onset or maintenance rather than general relaxation. The magnitude of improvement is comparable to some conventional sleep interventions, though more large-scale studies are needed to establish optimal dosing protocols.

### Who should avoid taking violet supplements or use them with caution?

Individuals with known allergies to plants in the Viola genus should avoid violet supplements, as cross-reactivity is possible. Pregnant and breastfeeding women should consult a healthcare provider before use, as safety data in these populations remains limited. Those with estrogen-sensitive conditions may want to exercise caution, as violet contains compounds that may have weak estrogenic activity, though clinical significance at typical supplement doses is unclear.

### Can violet supplements help with respiratory symptoms and viral infections?

An RCT involving 108 patients found that violet extract, when added to standard care for COVID-19, demonstrated faster reduction in cough, myalgia, headache, and diarrhea compared to standard treatment alone. Violet's traditional use for respiratory support is supported by both its historical applications and this emerging clinical evidence. However, violet should be considered a complementary approach rather than a replacement for proven antiviral or standard medical treatments for infectious diseases.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*