nupafeed mah horse calmer - magnesium calmer for horses

Nupafeed MAH® Horse Calmer

Magnesium Calmer for Horses

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To talk to us about this product call 01438 861 900

Product features

  • The only horse calmer containing MAH
  • Provides exceptional absorption for better results
  • Does not disrupt pH balance or hinder the absorption of other nutrients
  • LGC Screened and suitable for competition under all rules including FEI and BHA
  • No drowsy ingredients
  • Flexible to feed for long or short term use.


  • MAH Liquid Horse Calmer

For daily problems hacking, schooling, stabling, handling, muscle tension, mares, stallions, breaking, box rest, seasonal anxiety etc.


  • MAH Instant Calming Syringes

Use on their own or in conjunction with MAH Liquid for competition, travel, thoroughbred sales, shoeing etc.


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MAH® Feeding Information  Nupafeed MAH Frequently Asked Questions  Magnesium Supplements for Horses – Why MAH? 

Our renowned calming supplement for horses encourages positive, workable behaviour without compromising performance. MAH® is an advanced magnesium compound that is easy and flexible to feed, with advice on hand every step of the way.

The unique quality of Nupafeed MAH® Magnesium Horse Calmer lays in the way it is refined. The German pharmaceutical company, Verla-Pharm, pioneered the method of refining magnesium to create Magnesium-L-aspartate-hydrochloride, MAH®.

A completely different and superior grade of magnesium to that used in other supplements, MAH® is exclusive to Nupafeed. Verla-Pharm has been supplying the medical industry with their highly acclaimed products since 1949 and the equine market for the past 30 years. 

Nupafeed MAH® calming supplements do not contain L-Tryptophan, herbs or any ingredient that may compromise performance. Our goal is to support healthy muscle and nerve function, rather than creating an artificial calm.

All animals need to have the correct balance of calcium and magnesium. When a horse is highly strung or becomes stressed, anxious, nervous or excited, magnesium is depleted. As a result, calcium is allowed to overload muscle and nerve cells, triggering the release of stress hormones and excitatory chemicals. This can cause stress, erratic behaviour, aggression and/or muscle tension.

Nupafeed MAH® Calmer uses a water soluble, complex, pure, amino magnesium which is able to enter the horse’s system very efficiently and absorb into tissue. By encouraging a healthy balance of calcium and magnesium, MAH® helps to keep your horse on an even keel, without compromising performance.

Comparison of Magnesium Supplements for Horses

Classen HG et al. Comparative Experimental Study in Animals on Magnesium Absorption from the Gastro-Intestinal Tract in the Forms of Sulfate, Chloride, Aspartate and Aspartate-Hydrochloride. Arzneimittel-Forschung (Drug Research) 1973; 23: 210067-271


This graph demonstrates the absorption rates of different magnesium salts into animal’s intestinal tract, showing the efficiency of Magnesium Aspartate-Hydrochloride (MAH). When other magnesium supplements plateau, MAH® is shown to continue absorbing. Please note that magnesium oxide is not included because it is very poorly absorbed. 

MAH® magnesium has been developed not only for improved absorption, but to prevent disruption to the body’s pH and ion balance. Because of its unique composition, MAH® does not alter blood or urinal pH and does not hinder the absorption of other minerals, as other forms of magnesium do.

MAH® is ideal for any stress related behaviour, for horses or ponies in any discipline of competition. Our client base includes professional and Olympic level riders, National Hunt and Flat yards, vets and horse owners who wish for a stress free hack.

Nupafeed MAH® Liquid Horse Calmer can be added to your normal feeding regime. As the compound is totally safe, it allows the feeding level to be adjusted, enabling owners to find a level that suits each individual animal.

John Whitaker

“We have used Nupafeed MAH calmer for horses for several years after one of our owners, Mandy Hall, recommended it to us. We have used it very successfully on lots of different horses from our young horses to our older experienced international horses.”

- John Whitaker, Olympian

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‘We put Vanir Kamira on Nupafeed MAH Horse Calmer before Burghley following my vets advice. I honestly don’t think she would have done so well without it.’

- Piggy French

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Sara Gallop

“I started using MAH Calmer for my Grand Prix horse Summerhouse Bandreo, he is a phenomenal horse, but has a tendency to get a little hot in the arena.  Since using the MAH I have noticed a massive difference in him, I couldn’t recommend the product enough.”

- Sara Gallop, Summerhouse EC

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Jo Bates

“Nupafeed MAH calmer really works and without making the horses unresponsive. I have used it with a variety of different horses and have always had excellent results. I would definitely recommend Nupafeed over other calming products on the market”

Image: Elusive, HOYS Show Hack of the Year 2016, photo courtesy of ES Photography

- Jo Bates, Professional Producer

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Ben Maher

“We decided to try Nupafeed MAH Horse Calmer on one particular horse and it made a big difference. I now use it on all my sensitive horses. It does not affect their jumping ability and it has enhanced their performance. Nupafeed MAH is the only supplement we now use on the yard.“

Photo: Ben Maher and Don Vito competing for their Global Champions League, the London Knights. Copyright GCL / Stefano Grasso

- Ben Maher, Olympian

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