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Manuka honey

Supplement bee product immunegut
Aka: UMF honey, MGO honey, Leptospermum scoparium
Brands seen in Singapore: California Gold Nutrition, Manuka Health, Wedderspoon, Comvita, Manuka Doctor
Not medical advice. Check with your doctor or pharmacist before you start, stop or change the timing of anything you take.
How to use
What it’s for
Cough symptoms — low-quality evidence, honey in general
Studied for
Short courses
Pros & cons
Pros
  • Meta-analysis: honey beat usual care on cough scores
  • Manuka's extra lab activity comes from methylglyoxal
  • Lab activity held against antibiotic-resistant strains
Cons
  • Not for babies under 1 — infant botulism risk (NHS)
  • Higher umf did not always mean more lab activity
  • Little clinical data behind the antibacterial claims
Sources
  1. Honey for acute cough in children — a systematic review (Kuitunen et al., European Journal of Pediatrics 2023) · read 2026-08-27
    what it says
    “This review presents low quality evidence that honey may be more effective than cough medication or placebo/no treatment in relieving symptoms and improving sleep in a child with acute cough”
  2. Kuitunen et al., Eur J Pediatr 2023 — inclusion criteria · read 2026-08-27
    what it says
    “We included studies conducted in children ranging in age between 1 and 18 years”
  3. Effectiveness of honey for symptomatic relief in upper respiratory tract infections: a systematic review and meta-analysis (Abuelgasim et al., BMJ Evidence-Based Medicine 2021) · read 2026-08-27
    what it says
    “Compared with usual care, honey improved combined symptom score … cough frequency … and cough severity … Honey was superior to usual care for the improvement of symptoms of upper respiratory tract infections … further high quality, placebo controlled trials are needed”
  4. Clinical Significance of Manuka and Medical-Grade Honey for Antibiotic-Resistant Infections: A Systematic Review (Nolan et al., Antibiotics 2020) — what makes manuka different · read 2026-08-27
    what it says
    “The increased activity is attributed to the presence of methylglyoxal, not present in other honeys. This is due to dihydroxyacetone, identified only in the flower nectar of Leptospermum spp., and is a precursor for methylglyoxal”
  5. Nolan et al., Antibiotics 2020 — UMF grade versus measured activity · read 2026-08-27
    what it says
    “the concentration of MGO (and subsequent Unique Manuka Factor, UMF) does not necessarily correlate with the minimum inhibitory concentration (MIC) of certain bacteria, suggesting a multimodal mechanism of action”
  6. Nolan et al., Antibiotics 2020 — activity against resistant organisms (laboratory) · read 2026-08-27
    what it says
    “The most significant finding of our review is that the efficacy of honey is not affected by bacterial resistance … Both Manuka honey and medical-grade honeys are affective against a variety of microorganisms”
  7. Nolan et al., Antibiotics 2020 — shortage of clinical data · read 2026-08-27
    what it says
    “Whilst laboratory-based studies are promising, at present there is a shortage of clinical data to support the topical use of honey”
  8. NHS — Foods to avoid giving babies and young children (Honey) · read 2026-08-27
    what it says
    “Occasionally, honey contains bacteria that can produce toxins in a baby's intestines, leading to infant botulism, which is a very serious illness. Do not give your child honey until they're over 1 year old. Honey is a sugar”
  9. HSA — Guidelines on Prohibited and Restricted Ingredients in Health Supplements and Traditional Medicines, GL-CHPB-1-012 Rev 001 (Oct 2025) · read 2026-08-27
    what it says
    “The objective of this guideline is to highlight the substances of concern when used in HS and TM and is not meant to be an exhaustive list [manuka honey / Leptospermum not listed in Annex A or B]”
  10. HSA — Health Supplements Guidelines (Jan 2026), clause 4.8 and Tables 4–5 (vitamins and minerals limits) · read 2026-08-27
    what it says
    “HS for use by the general adult population should not contain vitamins and minerals exceeding the stipulated limits stated in Tables 4 and 5”
  11. HSA — Health Supplements Guidelines (Jan 2026), clause 6.6 and Table 6 (prohibited claims) · read 2026-08-27
    what it says
    “HS must not be labelled, advertised or promoted for any specific medicinal purpose, i.e. treatment or prevention, implied or otherwise, of any disease or disorder … Respiratory system Asthma, tuberculosis, bronchitis, sinusitis, cough, cold, flu”
  12. iHerb Singapore — Manuka Honey category (default order) · read 2026-08-27
    what it says
    “California Gold Nutrition, Superfoods, Manuka Honey, Monofloral, MGO 263+ … Manuka Health, Raw Manuka Honey, UMF 10+, MGO 263+ … Wedderspoon, Organic Manuka Honey Pops … Comvita, Manuka Honey, UMF™ 10+, MGO 263+ … Manuka Doctor, Monofloral Manuka Honey, MGO 925+”
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Updated 2026-08-29. Every line above traces to a numbered source. Kozen-X is not a medical device and does not give medical advice. It lists what published sources have written down — nothing more. A pair not listed is unrecorded, not cleared. Before you start, stop or re-time anything, talk to your doctor or pharmacist.