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Study reveals calming effect of magnesium
Horse rider
Magnesium can help promote a more relaxed riding experience.

Slows a horses reaction speed by over a third

Magnesium can have a calming effect on horses, according to new research.

The study, conducted by the WALTHAM Equine Studies Group and Australian collaborators, shows that magnesium can significantly slow reaction speed responses in horses.

Researchers from the Charles Sturt University in New South Wales, Australia, investigated the effects of magnesium aspartate supplementation on the reaction speeds of six Standardbred geldings.

When 10g of magnesium was added to a roughage diet (clover/ryegrass/hay), which already provided the recommended daily intake of magnesium, the horses average reaction speed slowed down by over a third.

Without the supplement, the mean response time was 5.3 meters per second.
With the supplement this reduced to 3.1 meters per second.

Clare Barfoot, research and development manager at MARS Horsecare UK, said: "Although the benefits of magnesium have been well documented anecdotally, this study provides the first scientific evidence that magnesium aspartate, which is found in some behaviour supplements such as our own T.E.N. Positive Calm Behaviour Plus, may influence behaviour.”

The findings will be presented at the Equine Science Society in Florida later this month. 

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FIVP launches CMA remedies survey

News Story 1
 FIVP has shared a survey, inviting those working in independent practice to share their views on the CMA's proposed remedies.

The Impact Assessment will help inform the group's response to the CMA, as it prepares to submit further evidence to the Inquiry Group. FIVP will also be attending a hearing in November.

Data will be anonymised and used solely for FIVP's response to the CMA. The survey will close on Friday, 31 October 2025. 

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News Shorts
CMA to host webinar exploring provisional decisions

The Competition and Markets Authority (CMA) is to host a webinar for veterinary professionals to explain the details of its provisional decisions, released on 15 October 2025.

The webinar will take place on Wednesday, 29 October 2025 from 1.00pm to 2.00pm.

Officials will discuss the changes which those in practice may need to make if the provisional remedies go ahead. They will also share what happens next with the investigation.

The CMA will be answering questions from the main parties of the investigation, as well as other questions submitted ahead of the webinar.

Attendees can register here before Wednesday, 29 October at 11am. Questions must be submitted before 10am on 27 October.

A recording of the webinar will be accessible after the event.