Manuka honey has been used as a natural food for generations, but it has also attracted considerable scientific interest because of its distinctive antibacterial properties. Today, researchers are investigating Manuka honey therapeutic uses in areas such as wound care, infection control and tissue healing.
However, it is important to distinguish traditional use, laboratory research and proven clinical applications. Manuka honey is not a replacement for prescribed medical treatment, and food-grade honey should not automatically be treated as a medical product.
What Makes Manuka Honey Different?
Australian Manuka honey is produced by bees collecting nectar from plants in the Leptospermum genus. Australia has more than 80 native Leptospermum species growing across different habitats.
One of the best-known compounds in Manuka honey is methylglyoxal (MGO). MGO develops from dihydroxyacetone (DHA), which occurs naturally in the nectar of some Leptospermum flowers. As honey matures, DHA can convert into MGO.
MGO can be measured through laboratory testing and is an important characteristic used to describe Manuka honey.
Traditional Use of Honey in Healing
Honey has been used for wound care for thousands of years across different cultures. Historical use is one reason modern researchers became interested in studying its biological properties.
Modern research has identified several mechanisms that may contribute to honey’s activity, including its high sugar concentration, low pH and naturally occurring compounds such as MGO.
The development of medical-grade honey has allowed these properties to be studied in more controlled clinical settings.
1. Wound Care
Among the most researched Manuka honey therapeutic uses is wound management.
A 2026 evidence-based review examined clinical studies of medical-grade Manuka honey in chronic and postoperative wounds. It reported research involving diabetic foot ulcers, venous leg ulcers, pressure injuries and selected surgical wounds, with findings including antimicrobial activity, reduced bacterial load and improvements in some healing outcomes. The authors also stressed that larger, high-quality trials and standardised protocols are still needed.
This makes wound care one of the most closely studied clinical applications of Manuka honey.
2. Antibacterial Activity
Manuka honey is particularly interesting because of its antibacterial activity.
The Australian Manuka Honey Association identifies MGO as a major contributor to the antibacterial activity associated with Manuka honey.
Research has shown that Manuka honey can inhibit a variety of bacteria in laboratory studies. Clinical research has also examined its effect on bacterial load in wounds.
However, laboratory activity should not automatically be interpreted as proof that consuming Manuka honey will treat an infection.
3. Diabetic Foot Ulcers
Medical-grade Manuka honey has been investigated for diabetic foot ulcers.
One randomised study involving neuropathic diabetic foot ulcers found that honey-impregnated dressings were associated with a shorter mean healing time and faster reduction in bacterial contamination compared with conventional dressings, although the overall percentage of ulcers healed did not differ significantly.
More recent reviews have continued to examine Manuka honey in diabetic wound care, but results across studies are not completely uniform.
4. Chronic and Venous Leg Wounds
Chronic wounds can be difficult to manage because of slow healing, inflammation and bacterial colonisation.
Research has examined medical-grade honey dressings for venous leg ulcers and other chronic wounds. A 2026 review reported studies showing reductions in bacterial levels and some improvements in healing-related outcomes, while noting that not every trial has demonstrated a statistically significant difference in healing.
This suggests that Manuka honey may have a role as an adjunct to wound care, rather than a universal treatment.
5. Postoperative Wound Care
Another area of research is the use of medical-grade Manuka honey after surgery.
Clinical studies have explored honey dressings and gels for surgical wounds, including donor sites and other postoperative wounds. Some studies have reported improved healing or patient comfort, while others have found no significant difference compared with standard dressings.
This variation highlights why the type of wound, preparation used and clinical setting all matter.
6. Antibiofilm Activity
Some bacteria form biofilms, protective communities that can make infections more difficult to manage.
Manuka honey has been studied for antibiofilm effects in both laboratory and clinical research. The 2026 review reported broad-spectrum antimicrobial and antibiofilm activity and discussed its potential relevance to chronic wound management.
This is a promising area of research, but additional clinical evidence is needed before making broad treatment claims.
7. Debridement and Wound Environment
Another proposed therapeutic role is supporting the removal of dead tissue and creating a wound environment that can support healing.
Recent research reviews describe honey’s potential for non-traumatic debridement, along with effects on inflammation and tissue regeneration.
These effects are generally discussed in the context of medical-grade honey preparations rather than ordinary edible honey.
8. Emerging Uses in Advanced Wound Care
Researchers are also exploring ways to combine Manuka honey with modern wound-care technologies.
The 2026 review discusses honey-containing hydrogels, collagen dressings, nanofibrous materials and integration with negative-pressure wound therapy as emerging areas of investigation.
These approaches are still developing and require further clinical validation.
What About Manuka Honey for Infections?
Because Manuka honey has antibacterial properties, it is sometimes promoted as a treatment for infections.
This needs careful qualification.
A healthcare professional may use an appropriate medical-grade honey product as part of topical wound management, but eating Manuka honey is not an established treatment for bacterial infections elsewhere in the body.
Conditions such as serious skin infections, respiratory infections or bloodstream infections require appropriate medical assessment and treatment.
Medical-Grade vs Food-Grade Manuka Honey
This is one of the most important distinctions to understand.
Food-grade Manuka honey is intended for consumption.
Medical-grade honey is specially processed, controlled and prepared for clinical use. Research into wound-care applications generally involves products designed for medical use rather than an ordinary jar of edible honey.
Therefore, food-grade Manuka honey should not automatically be applied to an open or infected wound.
Does a Higher MGO Rating Mean Stronger Therapeutic Effects?
MGO is an important measurable characteristic of Manuka honey. The Australian Manuka Honey Association uses it as a central part of its grading approach.
However, an MGO number should not be treated as a direct medical dose.
A higher rating indicates a higher measured concentration of MGO, but it does not establish that consuming the honey will produce a proportional increase in therapeutic effects.
How Is Manuka Honey Authenticated?
Quality and authenticity are particularly important for premium Manuka honey.
The AMHA has developed criteria based on scientific testing and traceability. Its Mark of Authenticity requires qualifying Australian Manuka honey to be produced in Australia and independently tested against specified MGO and DHA requirements.
This provides useful information for consumers who want to understand the origin and characteristics of Australian Manuka honey.
Can You Still Enjoy Manuka Honey as a Food?
Yes. Outside clinical applications, Manuka honey can simply be enjoyed as a premium food.
It can be added to:
- Toast
- Porridge
- Greek yoghurt
- Fruit
- Smoothies
- Warm drinks
Its distinctive flavour and MGO content make it different from many ordinary honeys.
Because honey naturally contains sugars, it should be enjoyed in appropriate amounts as part of a balanced diet.
Important Precautions
Manuka honey should not be given to children under 12 months of age because of the risk of infant botulism.
People with allergies to honey or bee-related products should also use caution.
Most importantly, do not delay medical care for an infection, serious wound or other health problem because you are trying honey. Medical-grade honey may have a role in specific clinical settings, but that decision should be made with appropriate healthcare guidance.
Final Thoughts
The story behind Manuka honey therapeutic uses combines centuries of traditional honey use with modern scientific investigation.
Research has demonstrated antibacterial and antibiofilm activity, while clinical studies have explored medical-grade Manuka honey in diabetic foot ulcers, venous leg ulcers, pressure injuries and postoperative wounds. The latest evidence is encouraging in several areas, but researchers continue to call for larger and better-standardised clinical trials.
For consumers, the most important distinction is between food-grade Manuka honey and medical-grade honey. The therapeutic evidence applies primarily to specially prepared medical products and specific clinical applications, not automatically to eating a jar of Manuka honey.
Manuka honey remains an interesting Australian natural product because of its Leptospermum origins, measurable MGO content and distinctive flavour. Understanding what the research actually supports can help consumers appreciate its potential uses without confusing promising science with proven treatment.
