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Magnesium Oxide for Horses

  • MAGNESIUM OXIDE Supplement for Horses is part of Online Equines Horse Supplements range.
  • MAGNESIUM OXIDE Supplement for Horses
Your Price:
$12.50 (You save $1.00)
$13.10 (Fixed shipping cost)

Product Description

MAGNESIUM OXIDE Supplement for Horses 2kg

Protects against inflammation and free radical damage.

Can be used to treat and or prevent the following:

  • Colic
  • Laminitis
  • Insulin resistance
  • Metabolic syndrome
  • Muscle Spasm and Tying Up
  • Nerve Excitability
  • Diaphragmatic Flutter
  • Thumps

Australian Product




See Article Extract below




Magnesium oxide is perhaps the most commonly used source and has an approximate 50% absorption rate. The advantage of magnesium oxide is that the body will not absorb it if there is no deficiency, so it is difficult to overdose a horse on it. Magnesium sulfate (Epsom salt) is also highly available to the horse for absorption, but it also has an effect of drawing water into the bowel and causing diarrhea, so it is not recommended for daily use.

Magnesium helps protect against inflammation and free-radical damage. Horses with colic that results in endotoxin release or laminitis can be treated with magnesium to decrease the amount of damage that occurs.

Magnesium may play a role in insulin resistance and equine metabolic syndrome. Magnesium is involved with the action of insulin to clear the glucose from the blood. If magnesium is low in the cell, there will be impaired carbohydrate metabolism and reduced insulin response (insulin resistance).

Within the muscle, calcium and magnesium work antagonistically, calcium causing muscle contraction and magnesium inducing relaxation. If there is not enough magnesium, muscles tend to spasm. There are reports of horses that have responded to magnesium supplementation for treatment of chronic tying-up.

However, the role of magnesium in nerve excitability has been established as a problem when synchronous diaphragmatic flutter occurs. Synchronous diaphragmatic flutter involves spasmodic contractions of the diaphragm and is usually seen in endurance horses with electrolyte imbalances. The condition is also known as thumps. Treatment with calcium and magnesium has been found to speed recovery.

Magnesium is found in calming supplements because of its role in both nerve excitability and muscle contraction, and the suspicion that nervousness may be caused by suboptimal levels of magnesium in the diet.

Magnesium is involved in numerous functions in the body. To start, magnesium is one of the major minerals in bone. Magnesium is involved in over 300 enzyme reactions, including the generation of cellular energy and decoding of genetic information. It works in concert with calcium in nerve transmission and muscle contraction.

Just as calcium and magnesium have a balancing act within the body, so should it be in the diet. The two minerals are ideally kept within a ratio of 2.5:1 to 3:1, calcium to magnesium. The typical diet of the horse will usually fall into a suitable range of calcium and magnesium; if supplementation with magnesium is warranted, the amount of calcium in the diet should be considered.

Article taken from the work of Dr. Kathleen Crandell PhD & MS in Equine Nutrition and Exercise Physiology, Virgina.


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