Decoding the MGO Rating
The MGO rating on a jar of Manuka honey is a direct and scientifically verified measure of its potency. Specifically, what does MGO 400 mean in Manuka honey? It indicates that the honey contains a minimum of 400 milligrams of methylglyoxal (MGO) per kilogram of honey. This compound, methylglyoxal, is a naturally occurring ingredient that gives Manuka honey its powerful and unique antibacterial effect. The higher the MGO number, the higher the concentration of this active compound, and therefore, the stronger the antibacterial activity of the honey.
The Science Behind Methylglyoxal
Methylglyoxal (MGO) originates from another compound called dihydroxyacetone (DHA), which is found in high concentrations in the nectar of the Manuka flower. As the honey ripens and matures over time, the DHA naturally converts into MGO. This conversion process is what makes Manuka honey so unique and valuable. Unlike the antibiotic effect of many other honeys, which is due to hydrogen peroxide and can be sensitive to heat and light, the activity in Manuka honey is stable and heat-resistant.
MGO 400: What It's Good For
An MGO 400+ rating places Manuka honey in a potent category, suitable for more than just everyday wellness. It is considered a mid-to-high grade, offering significant antibacterial support. Here are some of its primary applications:
- Immune Support: The higher antibacterial activity of MGO 400+ makes it ideal for supporting the immune system, especially during seasonal challenges like colds and flu. A teaspoon can help soothe a sore throat and provide an overall wellness boost.
- Digestive Health: For those with digestive issues such as acid reflux or irritable bowel syndrome (IBS), MGO 400 can be beneficial. It helps to soothe the stomach lining and promotes a healthy gut microbiome.
- Topical Wound Care: When applied externally, the potent antibacterial properties of MGO 400+ can help create a protective barrier on minor cuts, burns, and scrapes. It supports the body's natural healing process and protects against bacterial infections.
- Skin Conditions: MGO 400+ can be used to promote clearer skin. Its anti-inflammatory and antibacterial effects can be beneficial for skin conditions like acne, rashes, and eczema.
MGO vs. UMF: Understanding the Difference
When shopping for Manuka honey, you may see different ratings, most commonly MGO and UMF. While related, they measure slightly different aspects of the honey’s quality.
| Feature | MGO (Methylglyoxal) | UMF (Unique Manuka Factor) |
|---|---|---|
| What it measures | Specifically quantifies the amount of methylglyoxal in milligrams per kilogram. | A comprehensive grading system that measures the presence of four key chemical markers, including MGO, Leptosperin, and DHA. |
| System Origin | A scientific measurement method adopted by many honey producers. | A quality trademark managed by the UMF Honey Association in New Zealand. |
| Assurance | Indicates potency based on a single key antibacterial compound, MGO. | Provides broader assurance of authenticity, quality, and antibacterial strength. |
| What to look for | A clear MGO number (e.g., MGO 400+) certified by an independent laboratory. | Both a UMF grade (e.g., UMF 13+) and the MGO number for full transparency. |
How to Choose the Right Manuka Honey
Choosing the right Manuka honey depends on your intended use. While MGO 400+ is a versatile and potent choice, here is a general guide to help you decide:
- For everyday use (culinary/general wellness): Lower MGO ratings (e.g., MGO 100+ to 250+) are suitable for general use as a natural sweetener or daily wellness support.
- For targeted wellness (sore throats/digestion): Mid-grade MGO ratings (e.g., MGO 250+ to 400+) offer more pronounced antibacterial activity for specific issues like digestive upset or colds.
- For therapeutic applications (wounds/severe symptoms): Higher MGO ratings (e.g., MGO 500+ and above) are reserved for more intensive therapeutic use, such as wound care or addressing more significant health concerns.
When purchasing, always check for certification. Look for labels that include a certified MGO content, or a combination of MGO and UMF grades, to ensure you are buying an authentic and high-quality product from New Zealand.
The MGO Advantage and Final Considerations
The popularity of Manuka honey and its MGO rating is rooted in scientific research highlighting its potent antibacterial and anti-inflammatory effects. Unlike standard honeys, the stability of Manuka's MGO content ensures consistent potency, which is critical for its therapeutic applications. The specific potency of MGO 400+ offers a powerful and effective option for consumers seeking strong immune and topical support, bridging the gap between everyday and highly specialized uses.
While generally safe, it is always recommended to consult a healthcare professional before using Manuka honey for specific medical conditions, especially for serious infections, diabetes management, or if you have bee allergies. For those with children under 12 months, all honey should be avoided. This potent honey, however, remains a trusted natural remedy for a wide range of wellness needs.
Traceability and Quality Assurance
Authentic Manuka honey is a premium product, and reputable suppliers provide robust traceability. Look for the producer's name, their Risk Management Program (RMP) number, and confirmation that the honey was harvested and packed in New Zealand. This ensures the product's origin and adherence to strict quality standards. Brands certified by both MGO and UMF systems offer the highest level of assurance for transparency and genuine potency.
