Can Ozonated Olive Oil Help Diabetic Foot Ulcers Heal Faster?

Study Overview

The paper, “Effects of topical ozonated olive oil on lipid profile, quality of life, wound healing and glycemic control in patients with diabetic foot ulcers: a randomized controlled trial,” was published in Lipids in Health and Disease in 2025 by Vahedi, Rahimi, Shad Tayebeh Sargazi and colleagues. It was a randomized controlled trial conducted at a tertiary care center in Hormozgan Province, Iran, between January and December 2024.

The investigators enrolled 123 adults aged 18 to 75 years with type 2 diabetes and Wagner grade 1-2 diabetic foot ulcers. Participants were randomized roughly 1:1 to either topical ozonated olive oil or standard care: 62 people in the intervention group and 61 in control. The intervention was daily topical application of 5 mL ozonated olive oil at 50 g/m³ for four weeks. Outcomes were assessed at baseline, after intervention and four weeks after intervention.

The primary practical endpoint was wound status using the Bates-Jensen Wound Assessment Tool (BWAT). The team also measured diabetes quality of life, HbA1c, fasting glucose, postprandial glucose, lipids and inflammatory markers including high-sensitivity C-reactive protein, IL-6 and TNF-α. Statistical analysis used linear mixed models and ANCOVA adjusted for baseline values.

Key Findings: The Actual Numbers

The wound result is the cleanest signal. A lower BWAT score indicates a better wound profile, and the 3.8-point separation between groups had a moderate effect size. The quality-of-life result moved in the same direction, which matters because diabetic foot ulcers are painful, limiting and psychologically draining.

The metabolic findings are more surprising. HbA1c, fasting glucose and postprandial glucose were all lower in the ozonated olive oil group, while lipid profiles, IL-6 and TNF-α did not significantly change. That pattern argues for caution: the study saw systemic marker movement, but the treatment was local and topical, so we should not leap to a broad claim that ozonated olive oil “controls diabetes.”

Mechanism: Why Ozonated Olive Oil Could Help a Chronic Wound

Ozonated olive oil is not the same intervention as drinking extra virgin olive oil. Ozonation reacts ozone with the unsaturated fatty acids in olive oil, forming ozonides and peroxide-related compounds that can release reactive oxygen species locally. In wound care, the proposed value is antimicrobial pressure, improved local oxygen-related signaling and modulation of the inflammatory environment.

Diabetic foot ulcers sit inside a hostile biology: impaired microcirculation, neuropathy, high glucose exposure, bacterial burden, excess protease activity and delayed extracellular matrix remodeling. A topical agent that reduces microbial load and nudges the wound out of chronic inflammation could plausibly improve granulation and closure dynamics. Olive oil itself also provides a lipid vehicle that can protect tissue and keep a wound environment less desiccated.

The hs-CRP reduction is biologically interesting, but probably not proof of a direct systemic anti-inflammatory drug effect. Faster wound improvement can itself lower inflammatory burden. The best mechanistic read is therefore local-first: antimicrobial and wound-bed effects may lead to better healing, which may then be reflected in quality-of-life and some systemic markers.

Context: How This Compares With Previous Olive-Oil Research

Most olive-oil health research focuses on dietary extra virgin olive oil, Mediterranean diet patterns, blood pressure, LDL oxidation, glycemic control, cognition or inflammatory biomarkers. This trial sits in a different lane: topical olive-oil-derived technology. It is closer to the emerging oral-health and dermatology literature on ozonated olive-oil gels, toothpastes and adjunctive antimicrobial use than to the classic PREDIMED-style nutrition evidence.

That distinction is important. Dietary EVOO evidence is about replacing poorer fats and delivering phenolic compounds through food. Ozonated olive oil is more like a medicalized topical formulation using olive oil as a reactive carrier. The study therefore does not tell you which supermarket bottle to buy for diabetes. It tells clinicians and researchers that ozonated olive-oil wound products deserve more rigorous testing against modern standard wound-care comparators.

Limitations

• • Single-center setting: the trial was conducted in one tertiary care center, so wound-care practices and patient characteristics may not generalize globally.
• • Short follow-up: four weeks of treatment plus four weeks follow-up cannot establish recurrence, amputation prevention or long-term closure durability.
• • Comparator detail: “standard care” can vary widely, and stronger trials should compare ozonated olive oil against well-defined best-practice wound protocols.
• • Topical intervention, systemic claims: glucose and HbA1c differences are intriguing but should not be overinterpreted as a diabetes-treatment effect.
• • Blinding uncertainty: topical oil interventions can be difficult to blind perfectly because of smell, feel and wound-dressing differences.
• • Not regular EVOO: ozonated olive oil is a processed topical material, not the same thing as culinary extra virgin olive oil.

Our Take

This is a useful clinical paper because it moves beyond petri-dish antimicrobial claims and reports patient-level outcomes in a real diabetic foot ulcer population. The wound score, quality-of-life and hs-CRP effects are large enough to be clinically interesting, not just statistically decorative.

But it is not game-changing yet. The trial is encouraging, not definitive. The next step should be a multicenter, blinded, protocolized wound-care RCT with ulcer closure, infection, antibiotic use, hospitalization and amputation as hard outcomes. Until then, our read is: promising adjunctive wound-care signal; not a reason for self-treatment; and definitely not evidence that ordinary olive oil should be rubbed onto diabetic wounds.

Reference

Vahedi S, Rahimi M, Shad Tayebeh Sargazi, Khanchemehr Y, Ghoozlu KJ, Fallah S, Moradi M. Effects of topical ozonated olive oil on lipid profile, quality of life, wound healing and glycemic control in patients with diabetic foot ulcers: a randomized controlled trial. Lipids in Health and Disease. 2025;24(1). doi: 10.1186/s12944-025-02726-z. PMID: 41024096.