Published 7th June 2011


Horse calmers represent one of the largest segments of the horse supplements market reflecting the need riders have to improve the behavior, rideability and safety of their horses.

Failure rates of horse calming are remarkably high which suggests that there are two main problems:

  1. Difficult behavior can have many causes but identifying those causes may be difficult. Put another way anything that causes pain can generate difficult behavior and working on the brain is unlikely to affect that.
  2. Most calmers work by sedation and while some horses sedate well many actually become more anxious as their ability to evaluate the risks in their environment is impaired.

The most common sedating ingredient in horse calmers is magnesium. Due to horse having a modern forage based diet it is incredibly unlikely to become magnesium deficient; providing more than the recommended level of magnesium in the diet can only work by sedation. The way magnesium does this is well understood by neuroscientists, biochemists and physiologists and the ease with which magnesium levels can be elevated by oral supplementation in horses was clearly demonstrated in the very early 1970s and confirmed by much more recent research. That recent research also confirmed the similarity of effect between a magnesium horse calmer and conventional veterinary sedative drugs.

One way to look at this is to recognize that the levels many modern feeds and supplements provide magnesium are actually creating a drug effect – forcing the body to mal-function. Many would question the wisdom and safety of such an approach being used on such powerful and heavy animals.

So a new approach is long overdue. Chelated calcium appears to be an answer for many horses. Scientists have done very little work on Chelated calcium. We know they are very stable molecules (i.e. they don’t readily give up their calcium ions and so they are not a calcium supplement). We know there are various channels and transporters in cells that can select for Chelated calcium and move it around the cell. But exactly what it does will remain a mystery until someone with deep pockets can finance the research.

The field trials that we at Calinnova Ltd have carried out strongly suggest that Chelated calcium enables normal cell function. It doesn’t impose on the cell. It also appears that there are a number of things that can squeeze Chelated calcium out of the body fluids. These include other calcium containing molecules like calcium oxalate (present in many tropical grasses) but also in things like alfalfa (Lucerne) and other species. Surprisingly even large quantities of natural limestone or chalk seems to have a negative effect and that brings into question our practice of adding these chemicals to feeds and supplements.

A bonus of using Chelated calcium based horse calmer is that it doesn’t only seem to enhance brain function. The process we believe it supports (calcium signalling) goes on in nearly every cell in the body. And that means that it often helps with bones, muscles, tendons, ligaments, hooves, hormones and a whole host of other organs.


Related articles 

Five Myths about Magnesium 

CCC In The Spot Light

Calming Vs Sedation

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