Manuka honey for cancer care: Understanding its role alongside conventional treatment

Manuka honey for cancer care is increasingly being explored as a supportive option used alongside conventional medical treatment. While Manuka honey is not a treatment or cure for cancer, emerging research suggests it may provide supportive benefits for comfort, recovery, and overall wellbeing when used under medical guidance.

This article explores current scientific research on Manuka honey for cancer care support, with a focus on symptom management, immune and gut support, and quality of life during treatment.

What Makes Manuka Honey Different?

Manuka honey is derived from nectar collected by bees pollinating Leptospermum species native to Australia and New Zealand. Its uniqueness lies in its naturally occurring bioactive compounds, particularly methylglyoxal (MGO), which develops naturally as the honey matures.

The Role of MGO in Manuka Honey Within Cancer Care

MGO is widely recognised as the key marker used to identify genuine Manuka honey and to indicate its bioactive strength. It is responsible for many of the properties that distinguish Manuka honey from conventional honey and underpin its consideration in supportive cancer care under medical guidance.

During cancer treatment, the body may be under increased strain due to reduced immune function, inflammation, skin irritation, and a higher risk of secondary infections. In this context, the bioactive properties of Manuka honey are being explored for their potential role in comfort, protection, and overall wellbeing.

Specifically, MGO has been studied for its contribution to the following properties of Manuka honey:

• Antibacterial activity - laboratory studies indicate MGO can inhibit the growth of a wide range of bacteria, including strains that may be resistant to conventional antibiotics. This may be relevant in supportive care when infection risk is elevated during cancer treatment.
  
• Antimicrobial support - MGO works alongside Manuka honey’s naturally low pH, high sugar concentration, and enzymatic hydrogen peroxide production to create an environment that is unfavourable for microbial growth.
  
• Wound-supportive properties - medical-grade Manuka honey has been studied for its ability to help limit bacterial presence and support skin comfort and natural repair when applied to the skin, including areas affected by treatment-related irritation or ulcers in topical applications.
  

• Biofilm disruption - early research suggests Manuka honey may help interfere with bacterial biofilms, which are protective layers that allow bacteria to survive and can be harder to manage when immune defences are reduced.

In addition to MGO, Manuka honey contains other naturally occurring compounds that may support overall resilience during cancer care, including:

• Phenolic compounds and flavonoids – naturally occurring antioxidants that help protect cells from oxidative stress and support overall wellbeing.
  

• Leptosperin – a naturally occurring compound used to confirm the authenticity of genuine Manuka honey, providing reassurance around quality, purity, and consistency.
  

• Naturally occurring enzymes and amino acids – components that contribute to the nutritional value of Manuka honey and support general nourishment during periods of increased physical demand.

Raw, minimally processed Manuka honey retains these components, which is why it is sometimes included in integrative care and wellness‑focused nutrition protocols aimed at supporting comfort and quality of life during cancer treatment.

Manuka Honey for Cancer: What Does Research Suggest?

1. Support for Treatment-Related Side Effects

Cancer therapies such as chemotherapy and radiation can lead to side effects including oral mucositis, a painful inflammatory condition of the mouth and throat.

Small clinical studies have observed that oral honey use may help reduce the severity of oral mucositis in patients undergoing radiotherapy for head and neck cancers.(1)

These findings suggest Manuka honey could be considered as a supportive option for comfort when approved by a healthcare provider.

2. Antioxidant Activity and Cellular Protection

Manuka honey contains antioxidants such as flavonoids and phenolic acids, which help neutralize free radicals associated with oxidative stress.

Oxidative stress is known to contribute to cellular damage and chronic inflammation, factors that play a role in cancer development and progression. By supporting antioxidant balance, Manuka honey may contribute to overall cellular health.

Laboratory (in vitro) studies have shown that Manuka honey polyphenols can inhibit the growth of certain cancer cell lines, including breast, colorectal, and melanoma cells. These findings are preliminary and have not been confirmed in large-scale human trials.(2, 3, 4)

An animal study reported reduced tumor growth in mice with estrogen receptor-positive breast cancer following oral Manuka honey administration. Researchers emphasized that further clinical studies are required.(2)

3. Inflammation Modulation

Chronic inflammation is increasingly recognized as a contributor to cancer-related complications. Bioactive compounds in Manuka honey have demonstrated anti-inflammatory effects in animal and laboratory studies by reducing oxidative markers and inflammatory mediators. (5)

While these findings are promising, they indicate potential supportive benefits rather than direct therapeutic outcomes.

4. Immune and Gut Health Support

The immune system and gut microbiome play interconnected roles in overall health, particularly during cancer treatment.

Research suggests Manuka honey may:

• Support immune signaling pathways

• Encourage beneficial gut bacteria such as Lactobacillus and Bifidobacterium

• Help maintain digestive comfort during treatment (6)

Preclinical studies indicate Manuka honey may inhibit the growth of certain pathogenic bacteria, which can become problematic when immunity is compromised. (7) These effects are attributed to a combination of MGO content, acidity, and enzymatic activity.

5. Chemotherapy Support and Protection (Preclinical Evidence)

Animal studies have explored Manuka honey alongside chemotherapy agents such as cisplatin. Findings suggest it may help reduce oxidative stress and organ toxicity in animal models. (8)

Additionally, honey has been investigated for its role in soothing treatment-related skin irritation and ulcers. Human clinical evidence remains limited, and further studies are required. (9)

6. Chemosensitization in Laboratory Studies

In vitro research indicates Manuka honey compounds may increase the sensitivity of certain cancer cells to chemotherapy drugs, including 5-FU and tamoxifen. (2) These effects have only been observed in laboratory and animal models and do not translate directly to patient outcomes.

How Manuka Honey Is Commonly Used During Cancer Care

With medical approval, Manuka honey may be used in the following supportive ways:

• Oral comfort: Small amounts swished and swallowed for mouth irritation

• Digestive support: Mixed into warm water or herbal tea

• Topical comfort: Applied to minor skin irritation only with clinician approval

• Daily nutrition: 1 - 2 teaspoons as part of a balanced diet

Always consult your oncology team before use.

Choosing Quality Manuka Honey

When selecting Manuka honey for cancer care support, consider:

• Verified MGO rating

• Independent laboratory testing

• Clear country-of-origin labeling

• Minimal processing

Higher MGO grades are often chosen for targeted wellness support, though suitability varies by individual. For guidance on choosing a suitable MGO level, our Manuka Honey Quiz can help narrow down the options.

Key Definitions

• MGO (Methylglyoxal): A naturally occurring compound in Manuka honey, measured in mg/kg, used to indicate bioactive strength.

• In vitro: Laboratory-based studies conducted outside a living organism.

• Preclinical: Research conducted in laboratory or animal models, not yet confirmed in human clinical trials.

• Oral mucositis: Inflammation and ulceration of the mouth lining, commonly associated with chemotherapy and radiotherapy.

Important Safety Considerations

• Manuka honey should never replace prescribed cancer treatments.

• Always consult an oncology care provider before use, especially during active treatment.

• Avoid topical application on radiation burns, surgical sites, or broken skin unless advised by a healthcare professional.

• Monitor blood sugar levels if you have diabetes, as honey is a natural sugar.

The Role of Manuka Honey in Supportive Cancer Care

Research into Manuka honey for cancer continues to evolve. Current evidence suggests it may offer gentle, supportive benefits for comfort, digestion, and overall wellbeing when used responsibly.

Manuka honey should never replace medical treatment, but when discussed with a healthcare provider, it may complement integrative care approaches focused on quality of life.

To learn more about our Australian Manuka honey range, including MGO strength and quality standards, explore our collection.

Disclaimer: Statements made have not been evaluated by the TGA (Australian Therapeutic Goods Administration) or FDA (U.S. Food & Drug Administration). Products sold are not intended to diagnose, treat, cure, or prevent any disease. Manuka honey is not intended to be a substitute for other medicines or advice and is best used in conjunction with any existing treatment plans. Please consult your healthcare professional before beginning any treatment. For all of the science-backed and evidence-based information on the natural healing properties of medicinal-grade Manuka honey, please refer to the latest published Manuka Honey research and use at your own discretion.

Frequently Asked Questions

Can Manuka honey cure cancer?

No. Manuka honey does not cure cancer and should never be used as a replacement for medical treatment. Research to date focuses on its supportive role in comfort, wellbeing, and symptom management alongside conventional care.

Is Manuka honey safe to use during chemotherapy or radiation?

Manuka honey is generally considered a food product, but its use during cancer treatment should always be discussed with an oncology care team. This is particularly important for people with compromised immunity, diabetes, or treatment-related dietary restrictions.

Does the MGO level matter for supportive use?

MGO (methylglyoxal) is used to indicate the strength and bioactivity of Manuka honey. Higher MGO levels reflect a greater concentration of this naturally occurring compound. There is no established medical dosage for cancer care, and suitability varies by individual.

How is Manuka honey typically used during cancer care?

With medical approval, Manuka honey may be used in small dietary amounts, mixed into warm beverages, or applied topically to minor skin irritation. Topical use should only occur with clinician guidance, particularly on treatment-affected skin.

Are there people who should avoid Manuka honey?

Individuals with honey allergies, uncontrolled diabetes, or infants under 12 months of age should avoid Manuka honey. Always seek medical advice before use during cancer treatment.

Can Manuka Honey Help Prevent Cancer?

There is currently no clinical evidence proving that Manuka honey prevents cancer. However, its antioxidant and anti-inflammatory properties are being studied for their role in reducing oxidative stress and supporting general health.

Manuka honey may be best viewed as part of a balanced lifestyle that includes nutritious food, physical activity, stress management, and regular medical care.

References

1. Recent Review Article, Bioactive properties and therapeutic potential of Manuka honey, 2024.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC11059902/

2. UCLA Health, Preliminary study shows potential of Manuka honey as a nutraceutical, 2023.
   https://www.uclahealth.org/news/release/preliminary-study-shows-potential-manuka-honey-nutraceutical

3. Mandal, M. D., Mandal, S., Honey: Its medicinal property and antibacterial activity, 2011, Asian Pacific Journal of Tropical Biomedicine, 1(2), 154–160.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC7023262/

4. Al-Waili, N., Salom, K., Butler, G., Al Ghamdi, A., Honey and microbial infections: A review supporting the use of honey for microbial control, 2011, Asian Pacific Journal of Tropical Biomedicine, 1(2), 154–160.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC3567021/

5. Alvarez-Suarez, J. M., Gasparrini, M., Forbes-Hernández, T. Y., Mazzoni, L., Giampieri, F., The Composition and Biological Activity of Honey: A Focus on Manuka Honey, 2014, Foods, 3(3), 420–432.
   https://www.mdpi.com/2304-8158/3/3/420

6. Alvarez-Suarez, J. M., et al., Honey as a Source of Dietary Antioxidants: Structures, Bioavailability and Evidence of Protective Effects Against Human Chronic Diseases, 2013, Antioxidants, 2(4), 307–330.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC6594701/

7. Cooper, R. A., Jenkins, L., Henriques, A. F., Duggan, R. S., Burton, N. F., Absence of bacterial resistance to medical-grade Manuka honey, 2010, Journal of Clinical Microbiology, 48(10), 3569–3573.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC6613335/

8. Samarghandian, S., Farkhondeh, T., Samini, F., Honey and health: A review of recent clinical research, 2017, Journal of Evidence-Based Complementary & Alternative Medicine, 22(4), 657–666.
   https://pmc.ncbi.nlm.nih.gov/articles/PMC5558866/

9. Medical News Today, Manuka honey: Benefits, uses, and risks, 2023.
   https://www.medicalnewstoday.com/articles/235092#1

Disclaimer: Statements made have not been evaluated by the TGA (Australian Therapeutic Goods Administration) or FDA (U.S. Food & Drug Administration). Products sold are not intended to diagnose, treat, cure, or prevent any disease. Manuka honey is not intended to be a substitute for other medicines or advice and is best used in conjunction with any existing treatment plans. Please consult your healthcare professional before beginning any treatment. For all of the science-backed and evidence-based information on the natural healing properties of medicinal-grade Manuka honey, please refer to the latest published Manuka Honey research and use at your own discretion.