Unlock Your Horse’s

Full Wellbeing

70% of your horse’s immune system is in the gut. The latest research links gut health to behaviour, appearance, and overall wellbeing.

A well-balanced gut is the key to unlocking a strong immune system and a happier, better looking horse.

The Benefits Of

DigestiveEQ

The Benefits Of

DigestiveEQ

Improved digestion

Normal appetite

Calm and manageable behaviour

Healthy coat and hooves

Ulcer and colic protection

Supports immune system

Ideal post-medication

Improve manure quality

Ingredients

Developed with Experts.

Backed by Research.

DigestiveEQ was developed in collaboration with leading microbiologists, veterinarians and equine nutritionists to deliver targeted gut support for all horses.


Each ingredient is scientifically validated to provide measurable benefits at the microbial and cellular levels, ensuring real, lasting results.

Dual-Action pH Buffers in DigestiveEQ combine red marine algae, renowned for its open honeycomb structure and superior buffering capacity, with magnesium hydroxide , a fast-acting, research-backed buffer. Together, they help neutralise excess stomach acid

and support a balanced pH, and create a longer-lasting protective layer in the stomach - unlike short-acting antacids that offer only temporary relief.

DigestiveEQ contains an advanced blend of prebiotics and next-generation postbiotics that work together to protect and repair the gut.

It features a natural postbiotic technology that delivers targeted metabolites to support gut health, helping horses better manage stress (including post-exercise cortisol), reduce inflammation, and maintain cartilage integrity - supporting overall resilience and performance.

Digestive enzymes enhance feed breakdown and improve nutrient absorption for better digestive efficiency. Horses naturally have low and variable levels of the enzymes needed to digest starch.

DigestiveEQ includes carbohydrase enzymes from fermentation sources, which are research-backed to significantly improve starch digestion, especially when added to cooked grains. Just 130 grams of DigestiveEQ provides enough enzyme activity to support the digestion of up to 4.5 kg of cooked grain, helping your horse get more from every feed.

DigestiveEQ delivers a unique blend of four key amino acids:

L-Glutamine, L-Threonine, L-Proline, and L-Serine.

These amino acids are essential in stimulating natural mucin production, which helps reinforce gut wall, supporting muscle and reducing susceptibility to injury.

DigestiveEQ provides a carefully balanced Calcium to Magnesium ratio to support optimal nutrient absorption and overall health. An imbalanced ratio, especially with excess calcium, can interfere with magnesium uptake, potentially leading to weakened bones, poor growth, and impaired energy metabolism. Maintaining the right balance is essential for bone strength, healthy nervous system function, and balanced behaviour.

Your Horse’s Health Journey

Month 1

Month 1

Gut starts to repair

Manure quality improves 

Shinier coat

Month 2

Month 2

Healthier appetite

Improved feed conversion

Calmer behaviour

Healthier hoof condition

Month 3

Month 3

Improved topline

More responsive in training

Overall wellness and condition

Results vary — some horses take longer to respond as their gut microbiome restores balance. If there are no obvious symptoms, changes may be subtle, like better hoof growth or immunity.

Consistency is key. Long-term gut health, paired with the right diet and DigestiveEQ, supports lasting performance and well-being.

The Disruptive Gut Health Supplement

DigestiveEQ vs Regular Gut Health Supplements

Sugar Free and Safe for Metabolic Horses

No Fillers or Grain By-Products

Active Ingredients at Effective Levels

Inclusion of Postbiotics as well as Prebiotics

4 Amino Acids & Digestive Enzymes

Optimal Calcium to Magnesium ratio

Supported Modes of Action

5

BRAND B

Low

Low

3

BRAND C

Low

Low

1

5

BRAND B

Low

Low

3

BRAND C

Low

Low

1

Thousands of incredible horse transformations

Don't just take our word for it. Hear it from our regular customers.

Horse Owner Recommended

Real and honest reviews from horse owners using Digestive EQ

Customer Reviews

Overall rating: 4.8 / 5 from 819 reviews.

My horse is doing amazing on his supplements, his last blood work was perfect

My lovely boy of 20 was suffering from an itchy thing, he and his two paddock mates are all on posiedon products have have been for close to a yr now, and he's a happy horse now with good gut health.

Opal is so lovely and calm on Digestive EQ. She keeps great condition and has a nice shine.

We absolutely love this product! ✨ By far the best investment I've made for my pony. After months of tummy issues, loose stools, and constantly wondering what to do next, I was lucky enough to attend a webinar about these products. I haven't looked back since! The results have been AMAZING 🤩 No more loose stools, a much happier pony, and an even happier owner. As an added bonus, I've halved my feed bill and even saved money on shampoo because I'm no longer washing poo-covered legs all the time! 😅 I couldn't be happier with the difference this product has made and would highly recommend it to anyone dealing with similar issues.

Our very elderly mini mare is on digestive eq and her health is great, she used to have the occasional upset stomach and be off her feed,now she eats all her feeds and trots up to the fence.

When I first got him over a year ago he was a ridiculously fussy eater and barely interested in his feed. As a TB I need him to keep weight on while in competition work and to be able to build muscle so it was very difficult at first to find the right feeds with a good amount of nutrition, that he would eat. Combined with digestive EQ and then HP later on, he has been thriving and now eats everything and not fussy at all. Highly rate this product.

No more grumpy girthing up, would not drop this product from their daily feed. Very happy with the out come of using this great product 👌 😀👏

Both my mares have been on digestive eq for two years now they are on 24/7 turnout and coping with seasonal changes well they are on hill country and physically fit I use equi bind during times of high sporen counts and find that it prevents my older mares pastern dermatitis and my young QH is less itchy These girls are both barefoot and I’ve noticed an improvement in hoof wall quality

These three ponies were a challenge. 2 with chronic laminitis and one very anxious and difficult. A combination of putting them on a grass free track and feeding them soaked hay along with daily Dustan BetaBeet with 1/3 cup of Digestive Eq and also Dunstan All 4 Feet has resulted in healthy energetic ponies with perfect poo everyday.

Love it i tell eveyone about it No more supplements needed this has it all Horses look Fabulous & happy and healthy

My horses are doing really well on Digestive EQ also my little pony is on Metabolize, they have lovely shiny coats and are getting the best out of their feed.

I have had Rio since June and in that time he has been on EQ Digest and MV minerals. He is feeling and looking great. I wouldn’t use anything else now.

Rhodium Deluxe won the title Gentlemen’s class at the NZ Horse an pony show on Saturday we would like to thank you for your sponsorship which we won. I buy your products monthly an with the 15% off can that be put to my next monthly delivery please. Thanks for the cap also. Jo Lochhead

Ive been using this product on my 5 horses for many months now and have seen a great improvement in my horses health. I had 2 horses prone to laminitis and I’m sure poisiden has mad a huge difference. Would highly recomend these products.

Kate arrived off the track as a 3 year old.. Too slow. A rack handle 15.1. Proposed granny horse. Now after 4 years of country life and Digestive EQ. A beautiful .....16hh ....Granny needing quite a high loading bank.

Spring dapples and a MUCH more willing attitude on rides - we're sticking with this!!!

Absolutely fantastic product 👏 10/10 we use this and the metabolize on our horses and they look and feel better than ever

Looks a million bucks! Amazing stuff

Love this product Put on his condition and he's so chill.

When you can provide all the health that they need in current times with supplements that do exactly what they say… it’s a no brainer!

I have had my beautiful horse "Frank" for the past seven years. From the very beginning he has had what I call "runny farts" which would leave awful green dribble all the way down his back legs and tail. It was pretty bad some days, and being a grey, it was so noticeable and horrible for him of course. I have tried all kinds of "gut health" products, everything from prebiotics to probiotics, and all manner of others in between, but nothing has really helped. Then someone suggested Digestive EQ. What a difference! He no longer has a green backside and as you can see from the photos, his is in beautiful condition. I get comments all the time about how good he looks. I am a total convert to Digestive EQ and I would recommend it to anyone who has a horse with any type of gut issues. Thank you Poseidon Animal Health!

Absolutely LOVE this product! It has worked wonders on my horse. The anxiety is not as tense, she's gained a healthy weight, and has a shiny coat. Shes very well in herself after putting her on Digestive EQ. Will continue using this amazing product!

My gypsy pony was constantly getting a pooey tail but seems to have helped clear this up

I really like using this product. I feel my horse is coping better when taken to new environments and just generally happier within himself.

This is our boy Frank. Frank arrived pretty lean, we got him straight onto Poseidon EQ in his feed of chaff and Mitavite with salt. The photos are 30 days apart. Frank is gaining weight steadily and feeling great. Winter is always a hard time to out weight on, but with good gut health and feed it's a lot easier. We use Poseidon for all our horses as a daily addition. We believe it helped a lot while we transitioned our older mare back to being barefoot after several years in shoes before we got her. Her feet are now barefoot and looking so much better! Healthy gut healthy horses all round we believe :-).

I had one of my horses battling with laminitus for over 2 years and after feeding Posiden daily he has been running back with the herd and has made drastic improvements. I feed all my horses Posiden daily and they maintain great health .

Winter coats are beautiful and shiny, very relaxed demeanor since starting 3months back. Loving product so far!

I got my boy Mauri in February and started him on Digestive EQ straight away after having my other TB on it since August 2024. Both boys are doing amazing now. Coats are beautiful and shiny, they've gained weight and are maintaining it well and Mauri is no longer looking bloated and uncomfortable. I absolutely love it.

This has helped my old boy with his bloating. Really pleased and he looks great!

So far , so good

Our TB looks fantastic and the gut powder supports any tummy upsets, getting her back to normal quickly.

The shine on my horse is amazing 👏 he hasn't been washed in ages

Digestive EQ and the Poseidon supplement range has been amazing for my Welsh Cob. It helped her adjust to new pasture and has calmed her behaviour immensely. She is now in great health and looking amazing.

This product works really well for my horse. As an ex harness horse he came to me off the track about 5 years ago , extremely nervous etc, and with behavioral issues . He was diagnosed a few months later by the vet with probable stomach ulcers and a definite positive test for hind gut ulcers. He was on various other products with some success , and we finally tried Poseiden IQ after a few years, as it sounded good and looked to be more cost effective. Also a New Zealand product , which ticks another box. Now after a year or so the horse has never been better gut-wise and he seems much happier with life. Very happy with it !

The success I have had this season competing in Endurance with my OTTB Good Country, has been phenomenal. A major component of our success is directly attributable to a good feeding regime and I can say without a doubt using EQ has been so important. Keeping him healthy and happy before, during and after competing is why he has won all but 3 events out of 12. The pinnacle was winning a 120km event. His condition never depleted in actual fact it only got better with using EQ. Highly recommended for all horses 100%!

This product along with lots of omega 3’s, ulcer treatment and love has helped my horse incredibly. She was an ex race horse that I adopted and was in such a bad a state with anxiety, untouchable and was severely under weight. The photos speak for themselves after 3 months.

have had my girls on EQ for awhile now, loving the results

Gives my foals the best start to life.

Both my horses have changed coat colours getting deeper coloured coats. My plain chestnut lad has gone almost liver chestnut, his colour is that deep. It’s helped both horses with reducing the amount of feed I need to feed for the same results and has helped with the long periods of travel keeping their guts settled. I PH tested my horses poop at a large event recently, my horse was one of very few with near neutral poop. Most others had acidic results and I credit that the the Posieden product. Great product so far. Really like it!

Digestive has helped my young gelding massively he’s no where near as reactive/ sensitive his bucking has settled right down. He gained a lot of condition and his coat is really shiny. He doesn’t stress anywhere near as much either. People always comment on how well he’s looking. I recommend this product to to anyone who ask what he’s getting feed, Or what do I wash him with? it’s not the shampoo I say it’s the gut product he’s on. Highly recommend great product.

FAQ

DigestiveEQ is a complete, premium gut health supplement, designed to maintain and strengthen equine gut health.

Benefits from great gut health are:

  • Healthier appearance and hooves
  • Happier, easier behaviour
  • Stronger appetite
  • Stronger immune system
  • Maintain weight
  • Improved feed conversion

When gut health is compromised, it can lead to reduced hormone and vitamin production, poor appetite, inefficient digestion, decreased energy supply, and leaky gut. Research continues to reveal strong links between gut health and various disease conditions, anxiety, and hyperactive behaviour—factors that can impact rider safety and overall horse welfare. By providing nutrition that supports gut health, we can enhance a horse’s mental and physical well-being, improve behaviour, and support performance

Whilst you may see similar benefits with these products, their intended usage is what makes DigestiveEQ and Stress Paste fundamentally different.

DigestiveEQ is the daily gut-health supplement that supports your horse through their day-to-day stressors, to keep them healthy, happy and performing at their best.

The powdered form makes it ideal to mix with feed in one or two meals per day. 

Stress Paste plays best in instances of acute stress, designed to deliver immediate gut and nervous system support in the face of high impact events including competition, travel and extreme weather. Stress Paste is also recommended when first starting DigestiveEQ to provide that extra buffer support at the very beginning

Conveniently formulated in a concentrated paste, Stress Paste is easy to give ahead of, during and after known or predicted stressful events.

Horse owners who are using DigestiveEQ often report seeing improved changes in as early as 4 weeks, with horses appearing calmer and more settled.

Another noticeable improvement is in the consistency of manure. Some horses that have been scouring for months have reportedly formed solid manure within days of using our digestive gut supplement.

In 2 months, horse owners are beginning to see improved top line and condition, particularly noticing filling out above the flanks around the loin area.

After 3-4 months people are consistently noticing significant behavioural, performance, immune system and condition improvements, as well as a noted improved suppleness under saddle and putting on weight.

If you don’t see a result that quickly, don’t panic. Every horse is different with some taking longer to respond due to repopulation of healthy microbes, particularly in their hindgut. If your horse doesn’t have obvious outward symptoms of gastrointestinal upset, positive changes are going to be less obvious but can be as subtle as improved hoof growth and increased immunity. But remember, seeing the results is just the start. Supporting optimal digestion and the health of your horse’s gastrointestinal tract longer term with the correct diet in combination with DigestiveEQ will ensure optimal health and performance into the future.

As part of the research and design phase of our digestive gut health supplement, we initially conducted trials with an early formulation. This formulation was tested on a variety of horses across different disciplines, yielding consistent reports of improvements in condition, topline, behaviour, manure consistency, performance, appearance, and stress resilience. Since then, the formulation has only improved, further enhancing these benefits.

Additionally, a separate field study was conducted by Professor Andrew Dart (BVSc PhD, Dip ACVS, Dip ECVS) from the University of Sydney, with a cohort of randomly selected horses. The results showed a remarkable increase in feed conversion, with some horses experiencing up to ninefold increases in weekly weight gain. Prof. Dart commented, "It is difficult to dismiss the relationship between weight gain and the addition of this supplement."

Ingredient selection is at the heart of what we do. In DigestiveEQ, we only use ingredients that have been extensively researched, meeting the highest standards of scientific evaluation. Each ingredient is carefully chosen based on its proven functionality, with inclusion rates aligned with research to ensure their effectiveness in equine health. While we don’t conduct the original research on individual ingredients, we source only those that are backed by robust science and incorporate them into a formulation designed specifically for horses.

DigestiveEQ is now supported by thousands of testimonials from horse owners and receives strong support, recommendations, and endorsements from veterinarians.

Yes it is. Like everything with laminitic horses, introduce it slowly, just to be on the safe side. Laminitic can be unpredictable, so slow is always best when adding something new to their diet.

Yes, DigestiveEQ can be safely fed to pregnant and lactating mares to support their gut health and potentially also their milk production. It should be fine for foals to nibble on a bit of their mother's feed containing DigestiveEQ. However, as there aren't studies specifically aimed at foals for a majority of the ingredients, we can't recommend giving it as part of a foal's feed.

As DigestiveEQ includes ingredients specifically designed to address gut health, it should be safe to feed alongside most other feeds and supplements. You may find that with the addition of DigestiveEQ and a balanced diet with vitamins and minerals, your horse may not need additional supplements. For example, DigestiveEQ contains a good amount of calcium and magnesium, so if you are already feeding another supplement with those in it, you may find you can cut it out. No need to waste money on over-supplementing.

Please note that our supplements are not complete feeds and should be paired with a balanced diet and adequate amounts of forage.