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Dr. Stephanie Hyland BSc (Hons) Picture of Dr. Stephanie Hyland BSc (Hons) Ph.D. Equine Nutrition® Call Stephanie Hyland MSc RNutr. or
Sophie Pelham Burn MMedSci ANutr.
on 0800 585525 for
free qualified equine nutrition advice
Feedmark Horse supplements
phone 0800 585525 or +44 1986 782368
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Picture of Brewer's Yeast
Brewer's Yeast

A natural supply of B vitamins and amino acids

55 reviews. 5 / 5
- +
FREE DELIVERY ON ALL ORDERS OVER £30

Brewer's Yeast

A natural supply of B vitamins and amino acids

55 reviews. 5 / 5
  • Reviews
  • Technical
  • FAQ's
Guest - 02/10/2025 06:21
I used it regularly for my horse, he eats it so I'm assuming he quite likes it .
Guest - 26/09/2025 11:18
assists in helping to stop skin problems and
itchyness
Guest - 19/09/2025 10:24
Easy to order and delivered on time. I ordered the 6kg sack and this arrived in 2 x 3 kg bags which I really liked as the 3kg bag is the perfect size to refill the tub I originally bought & then I could recycle the thick brown paper bag it arrived in. The product seems good - my pony's sweet itch has been so much better this year which may be down to a few factors but I think the Brewers yeast is one of them!
Guest - 11/09/2025 19:15
Been feeding this for several months now and it's definitely made an improvement. Poos are a lot less runny and he's definitely less stressy
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Linda - 24/08/2025 22:16
I bought this to create a bit of interest for my ‘fatty’ horse who has minimal hard feed but was throwing it about as it was mainly boring chaff.  He now eats every scrap and licks the bowl. It smells great and I feed it to all of my horses for the added vits and minerals. They all look very well and all enjoy their feeds.
Guest - 10/08/2025 20:13
Great product,  improves gut health,  helps keep flies away and adds B vitamins without needing a separate calmer. Been using it for years and freat to have a larger product size
Guest - 22/07/2025 09:50
Brewers yeast has been instrumental in helping the general well being of my older horse. It's also great to help with flies!
Guest - 14/07/2025 12:13
Seems to be helping my pony's skin and coat. Very palatable. Good price
Lorna - 29/06/2025 13:33
Excellent tonic to add to any feed for condition.
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Guest - 18/06/2025 09:34
Order arrive on time and product price and quality good. Will be ordering this from you again!

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Feeding Guide

 
Weight of Horse/Pony Amount per day                                
Up to 400kg ½ scoop
Over 400kg 1 scoop
 
1 level (50ml) scoop of Brewer's Yeast weighs approximately 38g

If you want to supplement your horse's diet with live yeast to aid digestion, feed the friendly bacteria and assist fibre utilisation, look for the EU licensed and scientifically proven Yea-Sacc® in BioPro.

Yea-Sacc® is also included in Original Balancer™ and the all-in-one Performance Range products.

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

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

Nutrition Information

Brewer’s Yeast provides a natural way to supplement your horse’s diet with B Vitamins and amino acids. The amino acid content and prebiotic action makes it an excellent supplement for poor-doers to assist with improving condition, in combination with exercise. Some compounds within Brewer’s Yeast may also support immune function. Commonly, Brewer’s Yeast is also fed to promote relaxation

Composition

Brewer's Yeast

Analytical

Crude protein 40.2%, Crude oils & fats 1.5%, Crude fibre <0.1%, Crude ash 12.1%, Sodium <0.1%

How does Brewer's Yeast support digestive function?

Brewer's Yeast is a prebiotic - a food source for the hindgut bacteria. It helps to feed the good bacteria in the digestive tract which supports and maintains a healthy hindgut environment. 

 

What is Brewer's Yeast made from?

Brewer's Yeast is derived from the Saccharomyces cerevisiae strain of yeast. It naturally contains high levels of B vitamins and Amino Acids (the building blocks of protein).

 

How will feeding Brewer's Yeast benefit my horse? 

Brewer's Yeast is a good source of protein and will provide the building blocks for muscle development. Brewer's Yeast also contains Vitamin B1 (Thiamine), which is known for its calming properties and the amino acid Tryptophan which is used by the body to make Serotonin. 

 

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