If you’re a horse owner searching for the ‘best supplement for horses’, what you likely mean is: what will actually help my horse right now? The truth is there isn’t one single supplement that suits every animal. The best one depends on your horse’s condition, workload, age and individual needs.
Let’s look at the most common reasons owners use supplements and explain what to look for in each case, so you can make an informed decision.
Why There Is No One ‘Best’ Supplement for All Horses
Horses have very different nutritional demands. A young horse in light hacking work does not need the same support as an older horse with stiff joints or a competition horse under regular stress.
The best supplement for horses is one that:
- Targets a specific issue
- Uses ingredients which are easily absorbed
- Complements, rather than overloads, the existing diet
Choosing supplements based on condition is often more effective than feeding a general-purpose product.
Best Supplement for Horses with Digestive and Gut Issues
Digestive health is one of the most common reasons owners turn to supplements. Signs of gut imbalance can include loose droppings, girthiness, poor appetite, weight loss or changes in behaviour.
Stress, diet changes, travel and routine disruptions can all affect the digestive system.
What to Look For
A good digestive supplement should support:
- Healthy gut bacteria
- Fibre digestion
- Nutrient absorption
Ingredients such as brewers yeast are widely used to support hindgut function and maintain a stable digestive environment.
When It Helps Most
- Horses prone to digestive issues
- Horses under stress or in training
- Poor doers or fussy eaters
Targeted digestive support is often considered one of the best supplements for horses because gut health influences overall wellbeing.
Best Supplement for Horses with Joint Stiffness and Mobility Issues
Stiff joints can affect horses of all ages, not just older animals. Working regularly, competitions or previous injuries can place strain on joints over time. You may notice your horse is stiff when warming up or is struggling with reduced flexibility.
What to Look For
Effective joint supplements often include ingredients that support:
- Joint comfort
- Mobility and flexibility
- Long-term health of joints
Natural ingredients such as Boswellia Serrata and turmeric are commonly used to support comfort and recovery, especially when paired with black pepper to improve absorption.
When It Helps Most
- Older horses
- Horses in regular or intense work
- Horses recovering from periods of strain
For many owners, joint support becomes the best supplement for horses once signs of stiffness appear. Fortunately, we provide an excellent joint supplement that contains superior Glucosamine, Chondroitin and MSM. Ideal for helping with arthritis in horses, our formula is expertly blended to support the pinnacle of equine joint health.
Best Supplement for Horses That Are Stressed or Tense
Stress is not always obvious. Some horses become sharp or react more to unexpected incidents, while others appear dull, distracted or difficult to focus. In other words, much like us humans!
Common triggers include:
- Taking part in competitions and travel
- Clipping and shoeing
- Changes in routine or turnout
What to Look For
Magnesium is one of the most widely used supplements for supporting calm behaviour and muscle relaxation. It plays an important role in nerve and muscle function. Our well-formulated magnesium supplement provides a consistent, bioavailable source without unnecessary fillers.

When It Helps Most
- Nervy or anxious horses
- Horses struggling to relax during work
- Horses that hold tension through the neck and back
For these horses, magnesium is often regarded as the best supplement for horses needing support with stress.
Best Supplement for Horses Needing Support with Recovery and Performance
Horses who work regularly have extra demands on their bodies. Recovering between sessions is just as important as training itself. Without proper support, they can become tired, stiff or develop sore muscles over time.
What to Look For
Supplements that support recovery often focus on:
- Muscle comfort
- Natural anti-inflammatory support
- Overall resilience
Turmeric and Boswellia are frequently used to support recovery, especially for horses in consistent work or competition schedules.
When It Helps Most
- Competition horses
- Horses in regular schooling
- Horses returning to work after time off
Support during their recovery can make a noticeable difference to how a horse feels day to day.
Choosing the Best Supplement for Your Horse
Rather than feeding multiple products ‘just in case’, it’s usually better to:
- Identify the main issue
- Choose a supplement that targets it
- Monitor results over several weeks
Start with one supplement and assess how your horse responds. Changes in behaviour, their digestion or overall condition often become clearer with consistent use.
The best supplement for your horse depends on a number of factors, including whether they need digestive support, joint care, stress relief, or help with recovery.
By choosing supplements based on your horse’s specific condition, you can support their health more effectively and avoid unnecessary products. A targeted approach is often simpler, more economical, and better for your horse in the long term.
Explore our high quality supplements for horses at Equine Protek.

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