The Unique Nutritional Profile of Lemon Myrtle
Lemon myrtle, or Backhousia citriodora, is a native Australian bush food known for its strong citrus aroma and flavor. Beyond its culinary appeal, it offers a remarkable nutritional profile, making it a valuable addition to a healthy diet. The dried leaves are a concentrated source of beneficial micronutrients.
Key Vitamins and Minerals
Lemon myrtle is rich in essential vitamins and minerals, contributing significantly to overall health. Its health-promoting properties, long recognized by Indigenous Australians, are now supported by modern research.
Vitamins
- Vitamin C: An important antioxidant for immune function and tissue repair.
- Vitamin A: Crucial for vision, immune health, and skin.
- Vitamin E: A powerful antioxidant protecting cells from damage.
- Folate: Essential for DNA synthesis and cell growth.
Minerals
- Calcium: An excellent plant-based source for strong bones and nerve function.
- Magnesium: Involved in numerous bodily processes, supporting energy and muscle function.
- Potassium: Supports cellular function and cardiovascular health with a high potassium-to-sodium ratio.
- Zinc: Boosts the immune system and aids metabolism.
- Iron: Supports oxygen transport and energy production.
The Power of Antioxidants and Bioactive Compounds
The health benefits of lemon myrtle are largely attributed to its potent antioxidants and unique compounds that protect against oxidative stress.
Citral
Lemon myrtle is the most concentrated natural source of citral globally, known for its antimicrobial, antifungal, and antiviral properties, even surpassing tea tree oil.
Flavonoids and Lutein
- Flavonoids: Antioxidants like quercetin and luteolin reduce inflammation and may support immune and gut health.
- Lutein: Important for eye health, protecting the retina and potentially reducing macular degeneration risk. Lemon myrtle has higher concentrations than avocados.
How Lemon Myrtle Compares to Common Citrus
| Feature | Lemon Myrtle (Dried) | Common Lemon (Fresh) |
|---|---|---|
| Citral Concentration | Up to 96% of essential oil | 2-5% of essential oil |
| Antioxidant Content | Exceptionally high, superior to many fruits | Good source, but less concentrated than myrtle |
| Calcium (per 100g) | Very high (approx. 1583 mg) | Lower (approx. 26 mg) |
| Lutein (per 100g) | High (approx. 6.56 mg) | Lower (approx. 0.05 mg) |
| Flavor Intensity | Intense and sweeter citrus flavor | Classic tart and sour lemon taste |
| Form | Dried leaves, powder, essential oil | Fresh fruit, juice, zest |
Incorporating Lemon Myrtle into Your Diet
Lemon myrtle can be easily added to your diet:
- Tea: Steep dried leaves for a caffeine-free tea.
- Culinary Spice: Use powdered lemon myrtle in marinades, dressings, or baked goods.
- Infusions: Create flavored oils or honey.
- Savory Dishes: Add to roasted vegetables, fish, or chicken.
- Beverages: Mix into cold drinks, sparkling water, or cocktails.
Conclusion
The nutritional value of lemon myrtle confirms its status as a significant superfood. Its high citral concentration and rich vitamin and mineral content offer numerous health benefits, including immune support, digestive aid, and antioxidant protection. This native Australian botanical is a versatile and nourishing ingredient for both cooking and wellness. For further research, studies on its properties are available via sources like the NIH website.
