# Myrtle Berry

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/myrtle-berry
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-15
**Evidence Score:** 4 / 10
**Category:** Fruit
**Also Known As:** Myrtus communis L., Myrtle fruit, Common myrtle berries, True myrtle fruit

## Overview

Myrtle berry (Myrtus communis) contains potent ellagitannins like oenothein B that inhibit inflammatory NF-κB pathways and anthocyanins that upregulate [antioxidant](/ingredients/condition/antioxidant) enzymes SOD and GSH-Px. These phenolic compounds demonstrate [anti-inflammatory](/ingredients/condition/inflammation) activity with IC50 values of 1.18 μM for TNFα inhibition in gastric cells.

## Health Benefits

- **Exhibits potent [antioxidant](/ingredients/condition/antioxidant)**: properties due to high levels of flavonoids and phenolic compounds, protecting against cellular damage.
- **Supports respiratory health**: by alleviating symptoms of bronchitis and coughs.
- **Demonstrates broad-spectrum [antimicrobial](/ingredients/condition/immune-support)**: activity against various pathogens.
- **May aid in**: regulating blood sugar levels by influencing [glucose metabolism](/ingredients/condition/weight-management).
- **Promotes [skin health](/ingredients/condition/skin-health)**: through its antioxidant and [anti-inflammatory](/ingredients/condition/inflammation) effects.

## Mechanism of Action

Anthocyanins in myrtle berries neutralize [reactive oxygen species](/ingredients/condition/antioxidant) and upregulate antioxidant enzymes like superoxide dismutase (SOD) and [glutathione](/ingredients/condition/detox) peroxidase (GSH-Px) through modulation of Nrf2 pathways. The ellagitannin oenothein B specifically inhibits [NF-κB](/ingredients/condition/inflammation) nuclear translocation with IC50 values of 1.18 μM for TNFα and 2.72 μM for IL-1β in gastric cells. These compounds also prevent lipid peroxidation and reduce IL-8 secretion with IC50 values of 0.54 μM for TNFα-induced responses.

## Clinical Summary

Current evidence is limited to in vitro and cell-based studies with no human clinical trials available. In 6-OHDA-treated cells modeling Parkinson's disease, myrtle extract reduced [oxidative stress](/ingredients/condition/antioxidant) and improved cell viability above baseline levels. Fermented myrtle extracts at 5-10 mg/mL concentrations increased fibroblast viability to 87.7-103.2% compared to 68.8% in controls after oxidative stress (P < 0.05). Anti-candida activity was demonstrated with minimum inhibitory concentrations of 8-64 μg/mL for oenothein B, though human efficacy remains unestablished.

## Nutritional Profile

- Flavonoids: Quercetin and myricetin provide potent [antioxidant](/ingredients/condition/antioxidant) and [anti-inflammatory](/ingredients/condition/inflammation) benefits.
- Tannins: Contribute to astringent and antimicrobial properties.
- Essential Oils: Myrtenol and cineole offer aromatic and therapeutic effects.
- Vitamins: Contains Vitamins C and E, supporting [immune function](/ingredients/condition/immune-support) and cellular protection.
- Dietary Fiber: Aids [digestive health](/ingredients/condition/gut-health).

## Dosage & Preparation

- Historically utilized in traditional medicine for treating respiratory and skin ailments, and its berries and leaves were used to flavor wines and culinary dishes.
- Modern applications include use in herbal teas, essential oils, and as a flavoring agent in Mediterranean cuisine.
- To consume, incorporate dried berries into dishes or brew leaves and berries as tea.
- Dosage: Use moderately due to potent bioactive compounds; consultation with a healthcare provider is recommended for medicinal use.

## Safety & Drug Interactions

No specific safety concerns, drug interactions, or contraindications are documented in available research, with studies reporting no adverse effects in tested cellular models. However, this absence of safety data reflects the lack of human clinical trials rather than confirmed safety. Given the potent bioactive compounds and [antioxidant](/ingredients/condition/antioxidant) mechanisms, potential interactions with anticoagulant medications or blood sugar-lowering drugs cannot be ruled out. Pregnant and breastfeeding women should avoid use due to insufficient safety data, and individuals with known allergies to Myrtaceae family plants should exercise caution.

## Scientific Research

Scientific studies document Myrtle Berry's potent [antioxidant](/ingredients/condition/antioxidant), respiratory, and [antimicrobial](/ingredients/condition/immune-support) benefits. Research also indicates its potential in regulating blood sugar levels and supporting [skin health](/ingredients/condition/skin-health).

## Historical & Cultural Context

Myrtle Berry has been revered in Mediterranean cultures for centuries, symbolizing love and immortality in ancient traditions. Ancient texts document its medicinal application in treating respiratory conditions and its use as a preservative in foods.

## Synergistic Combinations

Role: Polyphenol/[antioxidant](/ingredients/condition/antioxidant) base
Intention: Immune & [Inflammation](/ingredients/condition/inflammation) | Skin & Collagen
Primary Pairings: - Turmeric (Curcuma longa)
- Camu Camu (Myrciaria dubia)
- Ginger (Zingiber officinale)
- Rosemary (Rosmarinus officinalis)

## Frequently Asked Questions

### What are the main active compounds in myrtle berries?

Myrtle berries contain high levels of ellagic acid (350.5 mg/kg), gallic acid (52.2 mg/kg), hydrolysable tannins (498.0 mg/kg), and anthocyanins. The ellagitannin oenothein B is particularly potent for anti-inflammatory effects with documented IC50 values.

### How do myrtle berries compare to other antioxidant fruits?

Fermented myrtle extracts show 30% higher DPPH scavenging activity than non-fermented versions and double the linoleic acid peroxidation inhibition. In cellular studies, myrtle extract outperformed α-tocopherol in protecting fibroblasts from oxidative stress.

### Are there any proven health benefits from human studies?

No human clinical trials have been conducted on myrtle berries specifically. Current evidence comes only from in vitro cell studies and laboratory testing, so human health benefits remain scientifically unproven despite promising cellular research.

### What is the recommended dosage for myrtle berry supplements?

No established dosage recommendations exist due to the absence of human clinical trials. Laboratory studies used concentrations of 5-10 mg/mL for cellular protection, but this cannot be translated to human supplementation without proper clinical research.

### Can myrtle berries help with respiratory conditions?

While traditional use suggests respiratory benefits and antimicrobial compounds are present, no controlled studies have tested myrtle berries specifically for bronchitis or cough symptoms. The anti-inflammatory properties seen in cell studies may theoretically support respiratory health, but clinical proof is lacking.

### Is myrtle berry safe to take with diabetes medications?

Myrtle berry may influence blood glucose metabolism, so concurrent use with diabetes medications requires medical supervision to avoid hypoglycemia. Consult your healthcare provider before combining myrtle berry supplements with insulin or oral antidiabetic drugs. Blood sugar monitoring may be necessary when starting supplementation. This is especially important if you are on medications like metformin or sulfonylureas.

### Can I get the same antioxidant benefits from eating fresh myrtle berries versus supplements?

Fresh myrtle berries contain the active flavonoids and phenolic compounds, but supplements may offer more concentrated doses in a standardized form. However, whole berries provide additional fiber and nutrients that isolated supplements may lack. The bioavailability can differ between fresh fruit and extract forms depending on processing and individual digestive factors. Fresh berries are an excellent dietary source if available in your region, though supplements offer consistency and convenience.

### Who should avoid taking myrtle berry supplements?

Pregnant and nursing women should avoid myrtle berry supplements due to insufficient safety data, and those with known allergies to plants in the Myrtaceae family should not use this ingredient. Individuals on blood-thinning medications or scheduled for surgery should consult their doctor before use. People with uncontrolled diabetes should be cautious due to potential blood sugar effects. Those with sensitive stomachs may experience gastrointestinal effects from high-dose supplementation.

## References

Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4566462/; https://www.sciencedirect.com/science/article/pii/S0963996915001200; https://pubmed.ncbi.nlm.nih.gov/25845612/

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