Honest advice on horse probiotics, supplements and horse health
Horse Probiotics is an independent UK resource. We review equine supplements against their published ingredients and the evidence, compare the main options side by side and explain horse health in plain English, so you can make informed decisions alongside your vet.
- Independent desk reviews with no paid placements
- Evidence-informed guides with sources cited
- Information to discuss with your vet, never a replacement
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- IndependentNo paid placements
- Evidence-informedSources cited on every guide
- TransparentAffiliate policy disclosed
- Vet-firstInformation, not vet advice
Product reviews
Latest independent reviews
Each review looks at what a product declares on its label, what the evidence says about those ingredients, how it is fed and who it may suit. We do not accept payment for reviews.
Baileys Better Biome review: prebiotic, probiotic and postbiotic in one tub
Baileys Better Biome combines a prebiotic, a live yeast and a postbiotic yeast fermentation product. We look at the label, the feeding rates and how far the evidence goes.
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NAF In The Pink Powder review: condition support with added live yeast
NAF In The Pink Powder combines vitamins, minerals and amino acids with a live yeast and FOS. We look at what that means in practice and where it fits in a feeding plan.
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Protexin Acid Ease review: a stomach-focused buffering supplement
Protexin Acid Ease is designed to buffer excess acid and support the gut lining. We look at its declared ingredients, how it is fed and what it can and cannot do.
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Protexin Gut Balancer review: a simple, low-dose daily gut balancer
Protexin Gut Balancer is a probiotic and prebiotic powder fed in small daily amounts. We look at what the label declares, what the research on those ingredients shows and where it fits.
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TopSpec Comprehensive Feed Balancer review: an all-in-one balancer for working horses
TopSpec Comprehensive Feed Balancer is a concentrated feed with vitamins, minerals, protein, yeast and MOS. We look at what it supplies and who it is designed for.
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TopSpec Digestive Aid review: live yeast and MOS with an appetite focus
TopSpec Digestive Aid pairs a live yeast with the prebiotic MOS, vitamin B12 and peppermint. We look at what is declared, how it is fed and what owners should check.
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Compare supplements side by side
Buying guides and comparisons that set the main options out in one place, with clear notes on when each might be worth considering.
Best horse probiotics in the UK: how the popular gut products compare
A side-by-side look at four widely sold UK gut products, based on what each manufacturer declares, with practical advice on choosing the right type for your horse.
CompareFeed balancer vs vitamin and mineral supplement: what is the difference?
Both products fill the nutritional gaps that forage leaves. The key differences are protein, serving size and the type of diet each is designed to complete.
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Gut balancer vs gastric supplement: stomach or hindgut?
Gut balancers and gastric supplements target different parts of the digestive tract. Knowing which part you are trying to support, and when a vet needs to be involved, is the starting point.
CompareProbiotic powder vs pellets vs paste: which format suits your horse?
The same live cultures can arrive as a powder, a pellet or a paste. The format decides how easily they reach your horse, how much is wasted and how well they travel.
CompareSupplement guides
Understand what you are feeding
Plain-English guides to how equine supplements work, what the research does and does not show, and how to read a label with confidence.
Electrolytes for horses: sweat losses, salt and safe use
Horses lose large amounts of salts when they sweat. This guide explains how electrolytes fit alongside everyday salt and water, when they are used and how to use them safely.
Read guideEquine probiotics: how they work and what the evidence shows
Probiotics are among the most popular horse supplements in the UK. This guide explains what they are, how they are thought to act in the hindgut and where the research is still thin.
Read guideGastric supplements for horses: what they contain and what to expect
Gastric supplements are designed to support the stomach rather than the hindgut. This guide explains equine gastric ulcer syndrome, the common ingredients and why a veterinary diagnosis comes first.
Read guideGut balancers for horses: what they are and when they make sense
Gut balancer is one of the most common labels in the UK supplement aisle, yet it has no fixed meaning. This guide explains what these products usually contain and how to decide whether one suits your horse.
Read guideHow to choose a horse supplement: labels, evidence and cost per day
The UK supplement market is crowded and marketing claims can be hard to judge. This guide gives you a practical method for reading labels, comparing value and asking the right questions about evidence.
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How to feed a probiotic: introduction, timing, storage and records
Getting the practical details right gives a probiotic its best chance of being useful. This guide covers introducing it, timing it around change, keeping it viable and judging the results fairly.
Read guideHorse health
Horse health and wellbeing by situation
Practical, management-first advice for the times when a horse’s digestion is under most pressure, and clear guidance on when to involve your vet.
Diet changes and turnout: helping the gut adjust
The microbes in your horse's hindgut adapt to what they are fed, and they need time to do it. Most diet changes can be predicted, which means most can be planned.
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Gut health in foals and youngstock: from first weeks to weaning
A foal's gut changes rapidly in its first months, and diarrhoea in young foals can become serious quickly. This is an area where your vet should lead every decision.
Learn moreHindgut health in horses: how it works and what helps
The caecum and colon turn fibre into energy, and they depend on a stable population of microbes to do it. This guide explains what keeps that system steady and where supplements fit in.
Learn moreGut health for performance horses: feeding for hard work
Horses in serious work often need more energy than forage alone supplies, and the way that energy is provided affects both the stomach and the hindgut. Ration design matters more than any single product.
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Gut health in senior horses: feeding the older horse well
Teeth wear, health conditions become more common and condition can slip away over a single winter. Most of what helps an older horse digest its food happens in the feed room and the dental appointment.
Learn moreTravel and competition: keeping digestion steady away from home
Lorry journeys, unfamiliar water and new stabling all put pressure on the gut at the same time. Planning before you leave the yard does more than anything you can add to the feed bucket.
Learn moreHow we work
Reviews you can trust, written without commercial pressure
Supplement marketing can be confusing, and it is not always clear what a product actually contains or how strong the evidence is behind it. Horse Probiotics exists to make that easier. Every review and guide starts with the manufacturer’s published information and the independent evidence, and explains both in plain English.
We are open about what we do not do. We do not lab test products, we do not sell anything and we do not give individual veterinary advice. Where the evidence is limited or mixed, we say so.
- Declared ingredients and inclusion levels checked against the label
- Claims weighed against peer-reviewed evidence and expert bodies
- Cost per day, format and competition rules considered
- Sources listed so you can check them yourself
From the blog
Practical reading for horse owners
Short, useful articles on equine nutrition, gut health and everyday horse care.
Colic warning signs: recognise them early and call the vet
Colic is the most common equine emergency, and any delay can affect the outcome. Spotting the early signs and calling your vet straight away gives your horse the best chance.
Read articleFree faecal water in horses: what we know and what to try
Free faecal water is common, frustrating and poorly understood. This article sets out what the research says and the practical steps owners can take with their vet.
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How much forage does a horse need? The figures and how to use them
Forage should make up most of every horse’s diet. This article explains the bodyweight percentages UK welfare charities and vets use, and how to turn them into kilograms of hay.
Read articleFAQs
About Horse Probiotics
Does Horse Probiotics sell supplements?
No. Horse Probiotics is an independent information resource. We do not sell, stock or deliver any products, and no brand pays for its review or position on the site.
How are your product reviews written?
Reviews are desk reviews based on each manufacturer’s published ingredients, feeding rates and claims, weighed against the wider evidence on those ingredients. We do not lab test or feed products. Our full method is set out on the how we review page.
Can you tell me which supplement my horse needs?
We can explain the options and the evidence, but we cannot assess your individual horse. For anything health-related, your vet or a registered equine nutritionist is the right person to advise.
Do you earn money from links?
Not at present. We currently have no affiliate relationships, and links to manufacturers are not affiliate links. If that changes, links will be clearly labelled and our affiliate disclosure updated.
Not sure where to start?
Compare the main types of supplement side by side, or read our plain-English guides before deciding what, if anything, your horse needs.