Why feeding myths persist among horses
Horse feeding is one of the most discussed topics in the entire equestrian world and daily stable life. And although veterinary research has made enormous progress over the last few decades, many outdated assumptions persist to this day. Such feeding myths are often simply passed on, from stable to stable, from generation to generation, and frequently have little to do with current science. However, this is precisely what can lead to unbalanced rations, digestive problems, and long-term health damage. Modern equine nutrition, as supported by the National Research Council (NRC), the American Association of Equine Practitioners, and Kentucky Equine Research, among others, now shows very clearly how horses should really be fed optimally to stay healthy and perform well.
The science behind equine nutrition
Scientific findings on horse feeding clearly show that horses are so-called non-ruminant herbivores, which are designed to constantly ingest small amounts of high-fiber food throughout the day. Their digestive system is based primarily on fermentation in the hindgut, during which fiber is converted into usable energy. The publication "Nutrient Requirements of Horses" by the National Research Council is still considered one of the most important standard works in equine nutrition and forms the basis for many modern feeding recommendations worldwide. Current research confirms time and again: the basis of every healthy horse ration should be roughage, while concentrates and feed supplements should only be used in a targeted and individual manner.
Feeding myth: Horses need grain for energy
One of the most widespread misconceptions is the assumption that horses necessarily need grain to get enough energy, especially in the case of sport horses. In fact, scientific studies show that horses derive their energy primarily from the fermentation of fiber in the hindgut and not from starchy concentrates like grain. While grain can provide quickly available energy, it is not necessary for most horses and, if fed excessively, can even increase the risk of colic or metabolic disorders. A well-coordinated, roughage-based diet with high-quality hay or pasture grass is completely sufficient in many cases, even for active horses.
Feeding myth: More protein means more muscle
Another common misconception is that more protein automatically leads to more muscle growth. However, the reality is much more complex. Muscle growth depends primarily on regular training, an adequate energy supply, and a balanced amino acid profile, especially lysine. Excess protein is not converted into muscle mass, but is broken down and excreted via the metabolism, which in turn can increase water requirements and unnecessarily strain the organism. Research results, including those from Kentucky Equine Research, clearly show that the quality and balance of amino acids is more crucial than the pure amount of protein.
Feeding myth: Horses need fruit and sweet treats
Many horse owners assume that carrots, apples, and other sweet snacks are an important part of equine nutrition. While these feedstuffs are unproblematic in small quantities, they are not necessary from a nutritional point of view. Horses do not need sugar-rich feed for their health or well-being. Excessive consumption can increase the risk of insulin resistance or laminitis, especially in horses with metabolic sensitivities. From a scientific perspective, treats should therefore only be given occasionally and to a very limited extent.
Feeding myth: Two meals a day are enough
Many classic feeding systems are based on feeding horses twice a day, morning and evening. However, this pattern does not correspond to the horse's natural feeding behavior. Horses are trickle feeders that consume small amounts of roughage over many hours, often up to 16 to 18 hours a day. Longer breaks in feeding can lead to increased gastric acid production and thus significantly increase the risk of gastric ulcers and colic. Current recommendations, including those from the American Association of Equine Practitioners, therefore emphasize the continuous supply of roughage as a central foundation for equine health.
Feeding myth: Horses need more grain in winter
A frequently heard phrase in the stable is that horses need more grain in winter to stay warm. From a scientific point of view, however, this is not true. The horse's heat production is generated mainly by the fermentation of fiber in the hindgut and not by the digestion of starch. Increased hay feeding is therefore significantly more effective at supporting body temperature during the cold season. The digestion of fiber even generates heat in the body itself, making roughage the most important energy source in winter.
Feeding myth: Every horse needs nutritional supplements
The rapidly growing supplement industry often leads to the assumption that every horse needs additional vitamins, minerals, or special additives. In fact, in most cases, this is not necessary. A well-composed, roughage-based diet already fully covers the needs of many horses. Supplements usually only make sense if there are demonstrable deficiencies, if performance is significantly increased, or if there are special life phases such as pregnancy or growth. Unnecessary supplementation can even disrupt the nutrient balance, which is why veterinary or nutritional advice is very important before administering them.
Equine nutrition based on science instead of tradition
The difference between feeding myths and scientific findings is crucial for the long-term health of horses. Modern research clearly supports a roughage-based, balanced, and individually adapted diet instead of generalized rules from old stable traditions. Those who follow scientifically sound sources such as the NRC, the American Association of Equine Practitioners, or Kentucky Equine Research can significantly improve their horse's digestion, performance, and general well-being.
Horse feeding is not a matter of tradition, but of biology, an understanding of metabolism, and modern veterinary science.
Sources
National Research Council (NRC)
American Association of Equine Practitioners (AAEP)
Kentucky Equine Research (KER)
The Horse
Purdue University – Department of Animal Sciences
University of Kentucky – Equine Programs
