5 Equine Nutrition Myths That Could Be Harming Your Horse

Feeding your horse should be simple, but when tradition collides with science, confusion can follow. Many horse owners rely on advice passed down from trainers, friends, or old habits. While well-intentioned, some of these feeding practices can do more harm than good.

At Equine Institute, we believe in combining equine science with accessible horse education to help owners make smarter, safer choices. In this post, we’re busting five of the most common equine nutrition myths still circulating in barns today; and sharing what modern research really tells us.

Myth 1: Beet Pulp Must Always Be Soaked

This myth has been around for years. Many owners fear that feeding dry beet pulp will cause it to expand in the horse’s stomach and lead to choke or colic. While soaking can make beet pulp more appealing, especially for older horses or those with dental issues, it’s not always necessary.

The truth: Horses chew thoroughly and drink water throughout the day. When fed appropriately, dry beet pulp is a safe and valuable source of digestible fiber. It’s a great addition to many feeding programs, especially in winter or when hay quality is lacking. Understanding this is just one example of how equine science can reshape our daily routines for the better.

Myth 2: Bran Mashes Are Good for Digestion or “Cleansing”

Offering a warm bran mash on Sundays might feel like a comforting tradition, but it’s not rooted in science. Bran does not have any unique cleansing properties, and introducing it suddenly once a week can actually disrupt the horse’s digestive system.

The truth: Horses thrive on consistency. Any abrupt change in feed—even a bran mash—can upset the delicate balance of microbes in the hindgut. Wheat bran is also high in phosphorus and low in calcium, which can lead to imbalances over time. For a warm treat, stick with soaked hay pellets or beet pulp, and use ingredients that are already part of the horse’s regular diet.

Myth 3: Horses Need “Heating Feeds” in Winter

When the temperature drops, many owners reach for grain mixes like COB (corn, oats, barley), assuming they’ll help warm the horse from the inside out. This idea stems from the energy boost grain provides, but it’s not what keeps horses warm.

The truth: Long-stem forage, like hay, is the best heat source. As the horse digests fiber in the hindgut, internal fermentation produces body heat. Feeding additional hay during cold months is a far more effective and safe way to maintain warmth than increasing grain. This is a key takeaway from modern horse nutrition education that many barns are now embracing.

Myth 4: More Protein Means More Energy

This misconception comes from confusing protein with calories. While protein is essential for muscle repair and development, it is not a primary energy source for horses.

The truth: Horses rely on carbohydrates and fats for energy. Excess protein is excreted through the urine and can even put strain on the kidneys if overfed. Unless your horse is growing, breeding, or in intense work, there is rarely a need to feed high-protein concentrates. Choosing feeds based on the horse’s nutritional science-based needs—not marketing buzzwords—leads to healthier outcomes.

Myth 5: Omega-6 Fatty Acids Are Always Inflammatory

Some online sources warn against Omega-6 fats, labeling them as inflammatory and harmful. This creates fear around using useful fat sources like rice bran or corn oil.

The truth: Horses need both Omega-3 and Omega-6 fatty acids. Omega-6s play vital roles in skin health, immune function, and healing. The key is achieving a balanced ratio. Adding Omega-3-rich supplements like flaxseed or fish oil can complement a diet that includes Omega-6 sources, helping to support overall wellness without eliminating important fats.

Bringing Science Into the Barn

Understanding your horse’s nutritional needs doesn’t require a degree, but it does benefit from access to current, research-based equine education. When you combine tradition with the latest in equine science, you gain the confidence to feed smarter, manage health better, and prevent common mistakes.

At Equine Institute, we’re here to help you turn knowledge into care. Whether you’re managing a performance athlete or a beloved pasture companion, making informed decisions about feed is one of the most important ways you can support long-term health and wellbeing.

Want to Learn More?

Take your understanding of equine nutrition to the next level. Explore our online courses designed for horse owners, riders, barn managers, and equine professionals. You’ll get expert-backed insights, practical tools, and the confidence to make feeding decisions grounded in science.

Browse our equine nutrition courses to learn more.