Researchers from Germany’s University of Hamburg Medical Center have confirmed in a clinical study that coriander oil treats the most type of vigorous athlete’s feet.
The researchers tested 40 people who were infected with interdigital tinea pedis — which means athlete’s feet that has developed between the toes.
The researchers randomized and separated the patients into two groups and gave them each an ointment to rub on their feet and in between the toes for 28 days.
The researchers took specimens and analyzed the infections initially, at 14 days and at 28 days.
The researchers measured populations of Candida species, Trichophyton mentagrophytes and Trichophyton rubrum. The Candida species are not typically known to cause athlete’s feet. The Trichophyton fungi, however, are often the central agents at the root of athlete’s feet.
At 14 days, those treated with the Coriander oil ointment had significantly fewer colonies of the Trichophyton fungi, and had significantly better signs of infection.
At 28 days, their improvement continued. About 75% of the coriander oil group had no clinical signs of athlete’s feet after 28 days, compared to about 10% among the placebo group. Meanwhile, none of the coriander group had marked or severe signs of athlete’s feet, while 40% had marked signs and 5% had severe signs at the beginning of the study.
In their microbial analysis, the coriander group went from 42% infection rate to 11% infection rate — a drop of 31% during the 28 weeks.
More about Coriander
The ointment contained 6% coriander oil. Coriander (Coriandrum sativum) is also referred to as cilantro — a relative of parsley. Cilantro is actually Spanish for Coriander, and Cilantro is most famous as an ingredient in the Mexican dish, salsa.
Coriander is also referred to as Chinese Parsley, or yÃ¡n qiÃ n in Chinese medicine.
Coriander oil is derived from the seeds or fruits of the Cilantro plant.
Meanwhile the fresh Coriander or Cilantro used in Mexican and other cuisines is typically harvested fairly young, before the plant goes to seed. At this young stage, Cilantro has a very mild flavor. The seeds and the older plant have a much stronger, aromatic odor. The dried seeds become more fragrant over time.
Other research has found that Coriander oil is significantly antibiotic. Researchers from Germany’s University of Freiburg found that Coriander oil significantly inhibited Streptococcus pyogenes — the typical cause of strep throat and other infections. They also determined that Coriander oil inhibited methicillin resistant Staphylococcus aureus (MRSA), in concentrations as low as 0.04%
The researchers also tested 40 human volunteers with the application of 1% Coriander oil directly onto the skin. None of the subjects showed any sensitivity to the application of the oil on the skin.
Central constituents of Coriander include linalool, pinene, terpinene, geranylacetate, camphor and geraniol.
Coriander is considered by Ayurvedic herbalists as carminative (relieves gas), tonic (stimulates immunity), stomachic (eases digestion) and diuretic (stimulates urine flow). Fresh coriander leaves, meanwhile, have liver purifying and detoxifying properties according to traditional herbalist uses.
Coriander is typically used either in oil form, as fresh leaves or as a tea. Coriander tinctures are also now available.
Other Natural Athlete’s Feet Strategies
Other herbs that have been suggested by herbalists for the treatment of Athlete’s feet including Tea tree oil (from Melaleuca alternifolia leaves), grapefruit seed extract and garlic.
Each of these herbs have shown antifungal properties in the research. University of ConcepciÃ³n researchers found that tea tree oil inhibited Candida albicans, for example. Researchers from Germany’s Ernst Moritz Arndt University found that grapefruit seed extract inhibited E. coli, S. aureas and several other bacteria, as well as Candida maltosa.
Numerous studies show that fresh garlic oil is a potent antifungal, inhibiting a number of different yeasts as well as bacteria and other microbes.
Beikert FC, Anastasiadou Z, Fritzen B, Frank U, Augustin M. Topical treatment of tinea pedis using 6% coriander oil in unguentum leniens: a randomized, controlled, comparative pilot study. Dermatology. 2013;226(1):47-51. doi: 10.1159/000346641.
Casetti F, Bartelke S, Biehler K, Augustin M, Schempp CM, Frank U. Antimicrobial activity against bacteria with dermatological relevance and skin tolerance of the essential oil from Coriandrum sativum L. fruits. Phytother Res. 2012 Mar;26(3):420-4. doi: 10.1002/ptr.3571.
Diederichsen A. Coriander: Coriandrum sativum L. IPGRI, 1996.
CatalÃ¡n A, Pacheco JG, MartÃnez A, Mondaca MA. In vitro and in vivo activity of Melaleuca alternifolia mixed with tissue conditioner on Candida albicans. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Mar;105(3):327-32. doi: 10.1016/j.tripleo.2007.08.025.
von Woedtke T, SchlÃ¼ter B, Pflegel P, Lindequist U, JÃ¼lich WD. Aspects of the antimicrobial efficacy of grapefruit seed extract and its relation to preservative substances contained. Pharmazie. 1999 Jun;54(6):452-6.