Best Diet for Horses with Laminitis: Low-NSC Feeding Basics

Laminitis is not only a hoof problem. In many horses, especially easy keepers, ponies, and horses with equine metabolic syndrome or PPID, diet plays a major role in whether the feet stay stable or flare again. The usual goal is to lower intake of non-structural carbohydrates, or NSC, which includes sugars and starches that can worsen insulin dysregulation.

For most laminitis-prone horses, the safest starting point is a forage-based ration built around tested grass hay with low NSC, often targeting less than about 10-12% NSC on a dry matter basis. If a hay analysis is not available, your vet may recommend soaking hay before feeding to reduce water-soluble sugars. Because soaking can also wash out some minerals, many horses on hay-only diets need a ration balancer or a vitamin-mineral supplement.

Feeds that commonly need to be limited or avoided include sweet feed, corn, oats, barley, molasses-heavy concentrates, and unrestricted pasture. Pasture can be especially risky during flush growth, cool sunny weather, or after stress conditions that raise grass sugar levels. Some horses can return to controlled grazing later, but others do best with a dry lot, a grazing muzzle, or turnout only under a plan made with your vet.

If your horse needs extra calories, there are still options. Your vet may suggest low-NSC pelleted forage, soaked beet pulp without added molasses, or fat-based calories instead of grain. The best diet depends on whether your horse needs weight loss, weight maintenance, or more calories while recovering.

The amount that is safe depends on your horse's body weight, body condition, insulin status, and whether laminitis is active right now. A common feeding range for forage is about 1.5-2% of body weight per day on a dry matter basis, divided into multiple meals or offered in slow feeders. For a 1,000-pound horse, that often works out to roughly 15-20 pounds of hay daily, though your vet may adjust this up or down.

If weight loss is needed, restriction has to be careful and monitored. Severe cutbacks can increase stress, hunger, and the risk of metabolic complications. Ponies, miniature horses, donkeys, and obese horses need extra caution. Slow-feed hay nets, smaller frequent meals, and a dry lot can help reduce intake without long fasting periods.

When hay is not tested, soaking is often used as a conservative step. Many feeding plans use a 30-60 minute soak in cool water before feeding, then draining well. This can lower some water-soluble sugars, but it does not make every hay safe, so testing is still the more reliable option.

Treats should stay very small and very plain, if they are allowed at all. Many horses with recent or severe laminitis do best with no sugary treats during the recovery phase. Ask your vet whether a few bites of low-sugar options, such as a small amount of soaked hay cubes or a low-NSC commercial treat, fit your horse's plan.

See your vet immediately if your horse becomes reluctant to move, rocks weight back onto the hind end, walks with a short choppy stride, or seems painful when turning. Early laminitis can look subtle at first, especially in stoic horses. A stronger-than-normal digital pulse, heat in the feet, shifting weight, or lying down more than usual can all be warning signs.

Diet-related trouble is not always dramatic. Some horses first show repeated foot soreness, weight gain, a cresty neck, or flare-ups after pasture access, grain, or seasonal grass changes. Others have underlying insulin dysregulation or PPID and need testing before the feeding plan can really work.

Call your vet promptly if your horse has a new lameness episode, worsening stance, hoof heat, or a history of laminitis plus access to lush pasture or high-sugar feed. The sooner the cause is addressed, the better the chance of limiting hoof damage.

If your horse is already on a low-NSC plan but still has setbacks, your vet may want to review hay analysis results, total calorie intake, body condition score, medication needs, and whether hidden sugars are coming from pasture, supplements, or treats.

Safer alternatives usually focus on fiber, not starch. Good options may include tested low-NSC grass hay, low-NSC hay pellets or cubes, soaked beet pulp without molasses, and a ration balancer to cover vitamins, minerals, and protein without adding much sugar. These choices can help support hoof recovery while still meeting daily nutrition needs.

For horses that cannot safely graze, management changes can matter as much as the feed itself. A dry lot, slow feeder, grazing muzzle, or limited turnout during lower-risk times may reduce sugar intake from pasture. Some pet parents are surprised to learn that grass can be a bigger trigger than grain for certain horses.

If your horse needs more calories but must stay low in NSC, your vet may discuss adding fat-based calories, such as vegetable oil or a low-NSC commercial feed designed for metabolic horses. Senior horses, underweight horses, and horses with dental disease may need a different texture or calorie density than overweight ponies with insulin dysregulation.

The safest alternative is the one that matches the whole horse. Ask your vet whether your horse also needs testing for equine metabolic syndrome or PPID, because treating the underlying problem often makes the diet more effective and more sustainable.