What really supports healthy hooves from the inside out?
The short version
The hoof wall contains approximately 93% crude protein on a dry-matter basis, predominantly in the form of keratin, so an adequate supply of quality protein and essential amino acids is important for healthy hoof growth. Trace minerals such as copper and zinc also play important roles, and biotin is one of the most widely researched nutrients in relation to hoof quality.
Forage should be the foundation of the diet, with the rest of the ration complementing it where needed. Hoof wall grows slowly, at around 6–9 mm a month, and can take 9–12 months to grow from the coronary band to the ground. Dietary changes therefore take time to show.
Why nutrition matters for hooves
Hoof horn is formed continuously, and building strong, resilient horn needs a steady supply of the right nutritional building blocks. Forage provides many of them, but not always in sufficient amounts or in the right balance. If the diet falls short, the horn produced can be weaker, more brittle or more prone to crumbling and cracking.
Nutrition is only one influence. Genetics, conformation, environment, workload and regular, appropriate hoof care all matter too. But good horn can't be built without the right raw materials, which is why proper nutrition is vital.
New healthy hoof growth
Hoof growth varies between horses and is influenced by age, season and nutrition. Younger horses tend to grow hoof horn faster than older ones, and growth may be quicker during warmer months.
Improvements in hoof horn quality become visible gradually as new horn grows down from the coronary band. The existing hoof wall reflects many months of growth, so nutritional improvements take time to become apparent. The important thing is the quality of the new horn being produced, rather than simply how quickly it grows.
The key nutrients
Healthy horn isn't built by one "magic" ingredient. It depends on several nutrients being supplied together as part of a balanced diet.
Quality protein and amino acids
Hoof horn is made predominantly of keratin, a structural protein. But it isn't simply a case of feeding more protein: the amino acids matter too. Methionine, a sulphur-containing essential amino acid, is particularly relevant to keratin production, and lysine is important when considering overall protein quality.
Because the protein supplied by forage varies widely, the aim is a balanced supply of essential amino acids across the whole diet, rather than large amounts of any single one.
Biotin
Biotin has been widely researched in relation to hoof quality. In controlled studies, horses with poor-quality horn that received biotin, commonly at around 15–20 mg per day, showed improvements after several months. In one study using 20 mg per day, significant changes were seen after nine months.
Biotin works alongside other nutrients, though, and can't compensate for an otherwise unbalanced diet.
Zinc and copper
Zinc and copper are essential trace minerals involved in horn formation. Zinc is associated with keratin formation, while copper is needed for enzymes that contribute to the structural integrity of connective tissues.
UK forage-based diets can be low in copper and zinc relative to a horse's requirements, so both minerals deserve particular attention when balancing the diet.
More isn't automatically better. Trace minerals can be over-supplemented, particularly when several products containing the same minerals are fed together.
Why forage alone can fall short
A horse can hold weight well on forage and still miss out on key nutrients. Meeting energy needs doesn't guarantee that vitamin, mineral and amino acid needs are met too. The nutrient content of forage varies with soil, season, plant species and how it was conserved and stored.
A well-formulated forage balancer can complement the forage by supplying vitamins and minerals, and depending on the formulation, essential amino acids, where needed. Many powdered balancers can provide these nutrients without adding significant sugar, starch or energy.
That can be particularly useful for good doers that need a balanced diet without extra calories.
A practical example
Take a good doer maintained on hay and a little fresh grass. Energy needs are easily met, so there's no reason to add hard feed. But hay can be low in some trace minerals and amino acids, and nothing else in the ration makes up the difference.
A suitable balancer can help address nutrient gaps without adding significant calories, and horn quality can then be assessed over the following months as new horn grows out.
What about hoof supplements?
What matters is what a supplement provides and how it fits the horse's overall diet. Because healthy horn depends on more than one nutrient, at Progressive Earth we believe a well-formulated hoof supplement should provide a combination of amino acids, vitamins and minerals rather than relying on biotin alone.
A comprehensive hoof supplement may already supply significant vitamins and minerals, so it shouldn't automatically be fed alongside a separate balancer. Always check what each product provides and consider the diet as a whole.
Nutrition is only part of the picture
Good nutrition provides the building blocks, but management matters too:
- Hoof care: Regular, appropriate trimming or shoeing maintains balance and manages horn as it grows.
- Environment: Prolonged exposure to very wet, muddy or soiled conditions can affect hoof condition, so keep the environment as clean and well managed as practical.
- Movement: Regular, appropriate movement is part of overall hoof health.
The Progressive Earth approach
At Progressive Earth, our approach to hoof nutrition is based on supporting the whole diet rather than focusing on individual nutrients in isolation.
Our vitamin and mineral balancers provide nutrients that contribute to healthy hoof growth, with different formulations designed to suit different horses and feeding regimes. The most appropriate choice depends on the horse, their forage and what is already being supplied in the diet.
For horses where hoof quality is the main nutritional concern, Pro Hoof Platinum offers more targeted nutritional support.
Where to start
- Start with forage. Consider the type and amount of forage your horse is eating, along with any access to fresh grazing.
- Review the whole diet. Check which vitamins, minerals and amino acids are already being supplied before adding another supplement.
- Choose appropriate nutritional support. A well-formulated balancer can help complement a forage-based diet, while horses with particular hoof concerns may benefit from more targeted support.
- Allow time. Improvements in newly formed hoof horn take months to become visible, so avoid judging nutritional changes too quickly.
- Maintain good hoof care. Nutrition works alongside appropriate trimming, shoeing and management.
Frequently asked questions
How long does it take for hoof supplements to work?
Hoof horn grows slowly, so improvements in newly formed horn can take several months to become noticeable. A complete hoof wall may take approximately 9–12 months to grow from the coronary band to the ground. Results depend on the horse's existing diet, hoof condition and whether nutrition is contributing to the problem.
Is biotin alone enough for healthy hooves?
Biotin has been researched for its effects on hoof quality, particularly in horses with poor-quality horn. However, healthy hoof growth also depends on adequate protein, essential amino acids and other vitamins and minerals. Biotin cannot compensate for an otherwise unbalanced diet.
Does a horse need a separate hoof supplement if it already receives a balancer?
Not necessarily. Many comprehensive vitamin and mineral balancers, including those in the Progressive Earth range, already provide key nutrients that support healthy hoof growth. Before adding a separate hoof supplement, check what the existing balancer supplies to avoid unnecessary duplication.
Find the right nutritional support for your horse
Concerned about poor hoof quality? Explore Pro Hoof Platinum →
Looking for a balancer to complement your horse's diet? Explore our vitamin and mineral balancers →
Not sure what your horse needs? Get in touch and we'll be happy to help.
Disclaimer: This article is general information only. Every horse is an individual, and nutritional requirements vary with age, workload, health, management and the rest of the diet.