Common Horse Feeding Myths Debunked

We all want to do the right thing by our horses, but when it comes to feeding, there is no shortage of advice, opinions and long-standing “rules” passed around the feed room.

Some of that advice is useful. Some of it is outdated. And some of it can lead horse owners to overfeed, underfeed, oversupplement or make unnecessary changes to a diet that may already be working well.

Good horse nutrition does not need to be complicated, but it does need to be based on the horse in front of you. Age, workload, body condition, pasture access, dental health, metabolism, season and health history all play a role.

Let’s break down some of the most common horse feeding myths and look at what really matters.

Myth 1: Horses need grain in their diet

The truth: Not every horse needs grain.

Horses evolved to eat a forage-based diet, grazing steadily across the day and night. For many horses, especially those in light to moderate work, good-quality forage plus a suitable vitamin and mineral balancer may be enough to maintain condition and health.

Grain can be useful for horses with higher energy needs, but it is not essential for every horse. Cereal grains are generally higher in starch, and when fed in large amounts, they may increase the risk of digestive upset, excitability in some horses, weight gain or metabolic issues.

Before adding grain, it is worth asking: does this horse actually need more energy, or does the diet simply need balancing?

For horses that need extra calories without relying heavily on grain, options may include lupins, fibre-based feeds, oil or fat-based supplements, or low-starch complete feeds, depending on the horse’s individual needs.

Myth 2: If a horse is losing weight, it just needs more hard feed

The truth: Weight loss should always start with the basics.

Hard feed may help some horses gain weight, but it should not be the first or only consideration. If a horse is dropping condition, it is important to look at forage quality and quantity, dental health, worming history, age, stress, herd dynamics and possible underlying health issues.

Forage should make up the foundation of the diet. If the hay is poor quality, too low in calories, or the horse is not receiving enough of it, adding more hard feed may not solve the issue.

A horse that is struggling to hold weight may need better-quality forage, more frequent meals, access to hay overnight, a higher-calorie fibre source, or veterinary investigation if weight loss is unexplained.

Remember the golden rule - horses need 1.5% to 2% of their bodyweight in forage per day!

Myth 3: Feeding before or after exercise is dangerous

The truth: Large grain meals close to exercise are not ideal, but small amounts of forage can be beneficial.

Feeding a large hard feed immediately before intense exercise is generally best avoided, as it may make the horse uncomfortable and can affect digestion. However, this does not mean horses should be worked on an empty stomach.

Allowing a horse to nibble hay before exercise, particularly lucerne hay or chaff, may help buffer stomach acid and support gastric comfort. This can be especially useful for horses prone to ulcers.

After exercise, small amounts of hay or a wet mash can also help support gut motility and recovery. The key is moderation. Avoid large grain meals around exercise, but do not feel you need to withhold all feed.

Myth 4: Bran mashes are a good weekly cleanser

The truth: Bran mashes do not “clean out” the digestive system.

The idea that a weekly bran mash acts as a cleanser or laxative is outdated. In fact, sudden changes in feed, even for one meal, can disrupt the gut microbiome and may increase the risk of digestive upset in some horses.

Wheat bran is also high in phosphorus and low in calcium. If fed regularly without balancing the diet, it may contribute to mineral imbalances over time.

If you want to offer a warm, comforting mash, it is generally better to use your horse’s regular feed and simply add warm water.

If your concern is sand accumulation, speak with your vet or nutrition advisor about appropriate sand-clearing products such as psyllium husk, Sand Flush or EAC In-SandOut. These are typically used for short periods rather than continuously.

Myth 5: Horses get all the salt they need from a salt block

The truth: Many horses do not consume enough salt from a block alone.

Salt is important for hydration, nerve function, muscle function and overall health. However, traditional salt blocks are not always the most effective way to provide it.

Many horses simply do not lick blocks enough to meet their daily requirement. Salt blocks were originally designed more with cattle in mind, and horses have softer tongues, which can make it difficult for them to consume enough.

Loose salt added to the feed is often a more reliable option. Some horses may also need electrolytes, particularly in hot weather, during heavy sweating, travel, or competition.

Fresh, clean water should always be available when offering salt or electrolytes.

Myth 6: Lucerne makes horses hot

The truth: Lucerne does not directly make horses hot or hyperactive.

Lucerne is often blamed for making horses fizzy, but there is no simple evidence that lucerne itself causes hyperactivity. This myth likely comes from the fact that lucerne is generally higher in protein, calories and calcium than many grass hays.

If a horse is receiving more energy than it needs overall, that excess energy may appear as excitability. But lucerne, when fed appropriately, can be a very useful feed.

It can support horses needing extra quality protein, growing horses, lactating mares, hard keepers, horses in work, and horses needing gastric support. As with any feed, the key is using the right amount for the right horse.

Myth 7: Horses need to be fed on a strict schedule

The truth: Consistency matters, but horses are designed to eat gradually across the day.

Horses do not naturally eat two large meals a day. In a grazing environment, they may spend up to 16–18 hours a day foraging.

Long periods without forage can increase the risk of gastric discomfort, ulcers, boredom, stereotypic behaviours and digestive issues. Rather than focusing only on strict meal times, it is often more important to ensure the horse has regular access to forage.

If constant pasture or hay access is not possible, slow-feed hay nets, smaller frequent meals, and spreading forage across the day can help support more natural eating patterns.

Myth 8: All horses need vitamin and mineral supplements

The truth: Some do, some don’t — it depends on the total diet.

Supplements can be extremely useful when they are filling a genuine gap. However, adding multiple supplements without knowing what the horse is already receiving can lead to unnecessary expense and possible imbalances.

A horse on good pasture, quality hay and a fortified feed may already be receiving many of the nutrients it needs. On the other hand, horses on hay-only diets, restricted grazing, poor-quality pasture, or unfortified feeds may need a vitamin and mineral balancer.

The best approach is to assess the whole diet. Forage testing, body condition scoring and professional advice can help identify whether supplementation is actually needed.

Myth 9: More supplements mean better results

The truth: More is not always better.

It can be tempting to add a coat supplement, hoof supplement, joint supplement, gut supplement, calming supplement and vitamin mix all at once. But stacking products can sometimes double up on ingredients, create mineral imbalances or make it hard to know what is actually helping.

Supplements should have a clear purpose. Before adding one, ask:

What problem am I trying to solve?
Is this product suitable for this horse?
Does it overlap with anything already being fed?
How will I know if it is working?

A simple, balanced diet is often better than a complicated one.

Myth 10: Garlic boosts immunity and repels insects

The truth: Garlic is not the miracle supplement it is sometimes claimed to be.

Garlic has long been promoted for immune support and insect control, but evidence for these benefits in horses is limited. More importantly, feeding garlic in large amounts may be harmful.

Garlic contains compounds that can damage red blood cells and may contribute to anaemia if fed excessively or over long periods.

If insects are a problem, it is better to use proven fly management strategies such as rugs, masks, repellents, manure control and reducing breeding areas around water sources.

Myth 11: Choke is caused only by dry pelleted feeds

The truth: Choke can happen with many types of feed.

Choke, or oesophageal obstruction, occurs when feed becomes lodged in the oesophagus. Dry pellets may contribute in some cases, but they are not the only cause.

Risk factors include poor dental health, eating too quickly, inadequate chewing, limited water intake, certain feed textures, and previous choke episodes.

To reduce risk, ensure your horse has regular dental checks, access to clean water, and appropriate feed preparation. Soaking pellets, using larger feed bins, adding chaff, or slowing down fast eaters may help.

Myth 12: If a horse is overweight, just feed less

The truth: Weight loss needs to be managed carefully.

Overweight horses do need controlled calorie intake, but simply cutting feed without balancing the diet can create problems. Horses still need fibre, protein, vitamins, minerals and enough forage to support gut health.

For good-doers, the goal is usually to reduce excess energy while maintaining adequate forage intake. This may include soaking hay, using lower-calorie hay, restricting pasture safely, using slow feeders, and providing a low-calorie balancer.

Crash dieting is not ideal for horses and can be dangerous, particularly for ponies and horses at risk of metabolic issues.

Myth 13: Pasture is always the best and most natural feed

The truth: Pasture can be excellent, but it is not suitable for every horse in unlimited amounts.

Fresh pasture is valuable, but modern improved pastures can be very rich, especially during certain seasons. For horses prone to laminitis, insulin dysregulation, obesity or tying-up, unrestricted grazing may carry risks.

Pasture sugar levels can vary depending on season, temperature, rainfall, time of day and pasture type.

Some horses do very well on pasture. Others need managed grazing, track systems, grazing muzzles, dry lots, hay-based diets or careful monitoring during high-risk periods.

Natural does not always mean unlimited.

Myth 14: A shiny coat means the diet is perfect

The truth: A shiny coat is a good sign, but it does not tell the whole story.

A glossy coat can indicate good health, adequate fat intake, grooming and overall condition. However, it does not guarantee the diet is fully balanced.

A horse may look well on the outside while still having gaps in minerals, poor topline, low-quality hoof growth, excess weight, or digestive discomfort.

Body condition, muscle tone, manure quality, hoof health, energy levels, dental health and overall performance all give clues about whether the diet is working.

Myth 15: Changing feeds quickly is fine if the new feed is better

The truth: Feed changes should usually be made gradually.

Even when changing to a better-quality feed, the horse’s digestive system needs time to adjust. Sudden changes can disrupt gut bacteria and may increase the risk of loose manure, colic or feed refusal.

As a general rule, introduce new feeds gradually over 7–14 days where possible. This is especially important when changing hard feeds, increasing starch levels, adding oil, or introducing rich pasture.

Horse feeding does not have to be overwhelming, but it does need to be thoughtful. Many common feeding myths come from old habits, generalisations, or advice that may apply to one horse but not another.

The best feeding programs are built around forage first, then balanced according to the horse’s individual needs.

Before making major changes, consider your horse’s body condition, workload, age, health history, pasture access and current diet. When in doubt, speak with your vet or an equine nutritionist for tailored advice.

Good nutrition is not about following every trend. It is about balance, consistency and meeting the needs of the horse in front of you.

Happy feeding!