Nupafeed MAH Magnesium Calmer

Product Code: P-0123
  • From £6.49
  • RRP £7.20
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Nupafeed MAH Magnesium Calmer is available in 1L, 3L, 5L or Syringes (Bulk Buy deals available on the Syringes) 

The extremely popular and effective Nupafeed Calmer encourages calm, positive and effective behaviour that does not compromise on performance. 

Is your horse - 

Highly strung? 

Nervous to handle? or nervous to it's environment? 

Become stressed or overpoweringly excited when travelling or at shows? 

Try Nupafeed today! It's advanced Magnesium compound is superior grade of magnesium that supports healthy muscle and nerve function to ensure a lasting calming effect, rather than creating an artificial doping effect. 

  • This is the only calmer that contains Magnesium-L-aspartate-hydrochloride MAH
  • Does not cause drowsiness
  • Can be fed before a competition - no banned substances 
  • Feed long or short term
  • Does not disrupt pH balance or hinder nutrient absorption. 


The liquid can be added to your horses daily feed. 

The loading amount for a horse is 50ml three times daily or 75ml twice daily. Ponies require smaller amounts.

Allow 3-10 days on the loading measurement but this will vary depending on the horse. 

Maintenance level is approximately 5ml per 100kg so 25ml for a 500Kg horse. Some horses require more.

MAH Concentrated Syringes

When used alone as an instant calmer, most horses require two syringes. One is given three hours before the onset of stress, the second is given an hour and a half before.

For some horses a single syringe is enough, but it is best to start with two syringes so that you have a good bench mark.

Horses on the liquid can be put back on the loading amount in the lead up to competition or time of stress. They then usually just need a single MAH Concentrated Syringe given an hour and a half before stress.

Small ponies can be given a half Syringe in place of a full.

How does Nupafeed work? 

Magnesium is depleted in the horses body when it becomes stressed, anxious or excited. This results in calcium overloading muscles and nerve cells which in tern releases stress hormones and excitatory chemicals. Feeding Nupafeed MAH encourages a balance of calcium and magnesium which keeps the horse on a even keel.

Does it contain banned substances?

MAH contained no banned substances for FEI, BHA and Jockey Club. This product is subject to strict quality control.

How long does it take to work?

It depends on the horse but if you are feeding the liquid then allow 3-10 days on the loading measurement. 

The syringes can be used as an instant calmer as they contain a higher concentrated dose of MAH. 

How long will the 1L, 3L and 5L liquid last me?

The loading rate is up to 150ml per day so if using the full loading rate the 1L will last 7 days. 

The maintenance rate is 25ml for a 500kg horse (5ml per 100kg) therefore the 1L will last 40 days, the 3L 120 days and the 5L 200 days ( based on feeding 1 horse!) 

How much will this supplement cost to feed per day?

1L - 78p per day (based on the maintenance level of 25ml per day) 

3L - 60p per day (based on the maintenance level of 25ml per day)

5L - 50p per day (based on the maintenance level of 25ml per day)

Prices may vary depending on sale price. 

Can I use the liquid and the syringes together?

Syringes can be used alone or in conjunction with the liquid. 

Is Nupafeed safe to feed alongside other supplement and medication?


If you are feeding some antibiotics Nupafeed suggests feeding at least two hours apart as it could hinder the absorption. 

Does the Nupafeed come with a pump? 

The 5L or 3L does not come with a pump however it is available to buy separately - please contact JS Equine for this. Each pump action equates to 25ml of product.  


  • Next working day delivery is £7.90 inc vat (Monday to Friday)
  • Free delivery to all UK mainland addresses on orders over £75 inc vat
  • Next working day by noon to all UK mainland addresses can be selected for an extra  £12.49 inc vat. 
  • Saturday Delivery can be selected at an extra cost of £12 inc vat

Please contact us for a quote for our Same Day Delivery Service or International Shipping Rates. 


Click and Collect is also available from our warehouse in Quedgeley West Business Park, Gloucester - please contact us for this option. 

All orders subject to stock availability and courier capability. Please note our office hours are 7am-5pm Monday to Friday.