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Support calm behaviour and muscle function

54 reviews. 4.9 / 5
Sarah - 12/05/2024 20:04
Brilliant quality and is just perfect for my boy
Guest - 28/02/2024 13:54
Happy so far with this product for two horses who get easily unsettled by any changes to their surroundings they seem more level headed so far for the short time we have been using it.
Kay - 23/11/2023 12:59
My horses take magnesium daily, and I find especially when the seasons change and they can feel an inbalance ( fresh grass, or change of temperature) it keeps them on an even keel
Patrina - 15/11/2023 21:12
Good product, easy to use
Anne - 01/11/2023 13:32
Has a definite calming effect on mare. Particularly in relation to her herd behavior
Patrina - 26/07/2023 21:25
Magnesium helps my very anxious horse
Samantha - 10/05/2023 14:41
Excellent product and palatable
Guest - 08/02/2023 19:20
Takes the  edge off our anxious pony
Guest - 19/12/2022 10:54
Good value and recommended by vet for my horse.
Barbara - 14/12/2022 22:56
Fantastic pure products that work and free delivery the next day, what more could you ask for

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Feeding Guide

Weight of Horse/Pony Amount per day                               
Up to 400kg ½ scoop
Over 400kg 1 scoop
1 level (5ml) scoop of Magnesium weighs approximately 7g

Feed supplements should be fed according to body weight. Introduce to the horse's diet gradually, splitting between feeds (when applicable).

Magnesium is a complementary feeding stuff for equine animals. Feedmark uses nothing in the formulation of this product that contravenes competition rules.

Nutrition Information

Magnesium plays an important part in nerve and muscle function and can be helpful in calming horses and ponies.  Used daily, Magnesium can help to reduce difficult behaviour and produce a more relaxed approach to work.  Magnesium can also assist in attaining normal fat coverage in overweight equines, especially those with a cresty neck/fatty pockets.  


Magnesium oxide (100%)


Crude protein 0.3%, Crude oils & fats <0.1%, Crude fibre 0.5%, Crude ash 100.0%, Acid insoluble ash 5.9%, Sodium 0.01%

What source of Magnesium is this?

This product contains Magnesium Oxide. 


How much Magnesium does this product contain? 

Magnesium Oxide contains approimately 56% Magnesium.