Coconut Oil for Horses: Benefits and How to Use It Safely

Coconut oil has become a popular addition to human diets, and increasingly, to horse diets too. It isn’t a cure-all, but it has a real, growing body of practical use behind it in equine nutrition, particularly as an energy source. Here is what coconut oil does for horses, and how to introduce it without guessing at amounts.

Coconut oil is high in medium-chain triglycerides (MCTs), which the body processes differently than the long-chain fats found in most other feed oils. According to Mad Barn, an equine nutrition resource whose articles are reviewed by veterinary and nutrition specialists, MCTs are absorbed and converted to usable energy faster than other fat sources, which is part of why coconut oil is often described as a “cool,” non-heating source of calories, meaning it fuels a horse without the excitability sometimes associated with sugar and starch-heavy feeds.

A calorie-dense energy source, without the sugar spike. Fat is a standard way to add calories to a horse’s diet without relying on grain or sweet feed. Mad Barn notes that high-fat diets are commonly recommended for underweight horses, hard keepers, and performance horses needing extra calories, and that fat does not carry the same digestive and metabolic risk that grain-heavy diets do.

A lower-starch option for sensitive horses. Because it’s a fat rather than a carbohydrate, coconut oil is often used to help reduce the starch and sugar load for horses managing conditions like PSSM (polysaccharide storage myopathy), insulin resistance, or a history of tying-up, where high-starch diets can make symptoms worse. Research cited by Mad Barn found that horses on a higher-fat diet had delayed lactate buildup during exercise compared to horses on a low-fat diet, and separate research found that replacing starch with fat reduced startle reactivity in horses, both consistent with coconut oil’s reputation as a “cool” feed.

Support for weight gain in hard keepers. As a dense source of calories, about twice as much per gram as carbohydrates or protein, coconut oil can help underweight horses or hard keepers add condition without relying on additional grain.

Some support for gut and skin health, though more research is still needed. Medium-chain fatty acids appear to help maintain the intestinal barrier and may support a healthier gut microbiome, and lauric acid has documented antimicrobial properties that have shown benefit in early wound-healing research. Mad Barn is clear that more equine-specific research is still needed here, and topical use is generally aimed at a specific issue, like a cut or a skin condition such as mud fever, rather than a general coat-shine treatment for an otherwise healthy horse.

Not all coconut oil is the same. Virgin, cold-pressed coconut oil is made from fresh coconut meat rather than dried copra, and it keeps more of its natural antioxidants without added processing. Refined coconut oil, by contrast, is typically bleached and deodorized, which strips out some of what makes it useful in the first place. If you are adding coconut oil to your horse’s diet, virgin and cold-pressed is the better choice.

There is no single “right” amount that fits every horse, since it depends on body weight, workload, and any existing health conditions. Instead of guessing at a measurement, the safer approach is:

Coconut oil is calorie-dense, so more is not automatically better. A vet or equine nutritionist can help you fit it into your horse’s overall diet rather than adding it on top without a plan.

Diet plays a real role in coat condition, but it works alongside regular grooming, not instead of it. Removing loose, dead hair is what reveals the coat underneath. The 8″ EquiGroomer works through a horse’s coat without pulling on the topcoat, so the shine a good diet supports shows.