MSM: Methylsulfonylmethane

Do you feed MSM?

Methylsulfonylmethane (MSM) is an organosulfur compound with the formula (CH₃)₂SO₂. It is also known by several other names including DMSO₂, methyl sulfone, and dimethyl sulfone.

I have been feeding MSM powder to my horses for quite some time, and most recently have added it to the diets of all the horses we have here; that includes young growing horses, working horses, broodmares, the golden oldies and also the paddock ornaments. Just a table spoon per day, so around 20g each.

I have been feeding the MSM mostly for the anti-inflammatory properties and also for the sulphur component. Interesting, since feeding every day/365 I have noticed an improvement in the horses feet.

While at the Bowker Lectures¹ in Victoria recently a paper was given on the role of feeding MSM (& therefore, sulphur) in the horses diet and its effect.

The suggested recommended dosage rate of MSM is variable, dependent on whom the manufacturer or on-seller who is prescribing the use of it.  Quoting an Australian authority, Sharon May-Davis on the benefits of the use of MSM in the horses diet, Sharons recommendations were for a tablespoon daily (approx 18g) morning and evening whilst in heavy work.  Whilst other authorities focusing on the maintenance and improvement of horses hooves have found 1 tablespoon daily for maintenance, and 2 tablespoons daily for horses undergoing hoof &/or lameness rehab and particularly the individuals with inflammation.

From the recent study it would appear that the MSM will assist in producing a tighter laminae connection and a stronger mechanically stronger hoof over a period of time. Obviously this needs to be used as a part of an overall holistic approach regarding dietary and housing measure, but could be worth considering.

References:  The Bowker Lectures 2015.

 Melissa Longhurst is a certified Equine Body Worker (EEBW) and Equi-Tape Therapist working in the

Mackay & Whitsunday’s region of Queensland.

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Equine Massage should not be used as a substitute for veterinary care.  If in doubt of your horses’ health or well being, Melissa will refer you to your preferred veterinarian prior to commencing any bodywork.  Horses under the care of a veterinarian should first be cleared by the attending veterinarian to ensure that massage is appropriate for the horse at this time.