# Horse Feed Types Comparison: Which Option Is Best? The single biggest difference between horse feed types is where the calories and nutrients come from: forage options such as pasture, hay, and silage deliver fiber-driven nutrition through the hindgut, while concentrate options such as grain and formulated pellets deliver calorie-dense nutrition from starch and fat. The rule of thumb is simple. Feed a forage base to every horse, add concentrate only to fill gaps the forage cannot fill, and let your horse's body condition, workload, and hoof quality tell you whether the plan is working. This article is educational and is not a substitute for veterinary diagnosis or treatment. Any ration change for a horse with colic history, metabolic disease, or laminitis should be planned with your veterinarian and, where available, an equine nutritionist. ## Horse Feed Types at a Glance Every good horse feed types comparison starts with the same truth: horses evolved to eat fibrous plants for most of the day. The options below differ in how much of that fibrous base they provide, how concentrated their energy is, and how much management they demand from you. | Feed type | What it is | Best suited for | Main watch-outs | |--|--|--|--| | Pasture | Growing grass the horse harvests itself | Most idle and lightly worked horses with good grazing | Seasonal swings in quality, laminitis risk in easy keepers on lush grass | | Hay (grass or legume) | Dried forage cut and baled | The base of nearly every ration, stall-kept horses, winter feeding | Variable quality between batches, dust and mold if stored poorly | | Silage and haylage | Forage preserved at higher moisture in wrapped bales or clamps | Operations with good storage and rapid turnover | Spoilage risk once exposed to air, botulism risk from damaged bales | | Concentrates (oats, barley, corn, sweet feeds) | Starch-rich grains, sometimes with molasses | Hard keepers, horses in heavy work needing extra calories | High starch loads linked to digestive upset, overfeeding is common | | Formulated feeds and pellets | Manufactured complete or supplemental feeds with fortified vitamins and minerals | Horses needing predictable, balanced nutrition in a measured scoop | Easy to overfeed by volume, quality varies by manufacturer | | Balancers and supplements | Low-intake protein, vitamin, and mineral products or blocks | Horses on forage-only rations that need mineral fortification | Intake is unpredictable in some formats, not a calorie source | No single row wins in every column. The best horse feed types comparison options for your barn depend on what your horse does all day, what your forage analysis shows, and how closely you can monitor the result. ## The Main Horse Feed Types Explained ### Pasture Pasture is the most natural feed type and the cheapest per calorie when growing conditions are good. A horse on quality grass harvests small meals continuously, which matches the digestive tract's design. Forage quality, however, is a moving target. Growth stage, species mix, drought, and season all shift the protein, sugar, and mineral content of the same field from month to month. Foraging research illustrates why this matters. In wild foraging studies with common brushtail possums, animals could distinguish high-quality foods, meaning diets with higher protein and lower fiber, from a distance using odor cues, and patch quality changed how they visited, consumed, and quit each feeding site [1]. Grazing herbivores face the same patch-to-patch variability, which is why two horses on the same field can end the season in very different body condition. Selective grazers pick the best plants first, and the leftovers they are left with later are often lower in protein and higher in fiber. ### Hay Hay is dried forage, and it is the backbone of stalled and winter feeding in the United States. Grass hays such as timothy and orchardgrass suit most adult horses, while legume hays such as alfalfa carry more protein, calcium, and calories per flake. Hay's biggest strength is consistency relative to pasture, and its biggest weakness is batch-to-batch variation. Two loads from the same supplier can differ noticeably, so reputable programs have each cutting analyzed rather than guessing from color and smell. ### Silage and Haylage Silage and haylage are forages preserved at higher moisture than hay, usually wrapped to exclude air. They preserve more of the plant's original nutrients and produce less dust, which can suit horses with respiratory sensitivity. They also demand more from the feeder. A bale that seals imperfectly or sits too long after opening can spoil or support dangerous bacterial growth. Silage is not just a convenient hay alternative. In a controlled 12-month study, 32 Spanish horses were split between a silage oat hay diet and a commercial concentrate plus oat hay diet, and the researchers found that magnesium and iron levels were higher in the silage than in the commercial concentrate [2]. The diet type directly affected the horses' hoof magnesium, zinc, potassium, sodium, and hoof tensile strength, with hoof mineral concentrations also influenced by the animals' hormonal stage [2]. In other words, the choice between preserved forage and concentrate does not just change what goes into the feed bucket. It changes the mineral profile of the hoof tissue itself. ### Concentrates: Grains and Sweet Feeds Concentrates are the calorie-dense options, built on starch-rich grains such as oats, barley, and corn, sometimes bound with molasses into a sweet feed. They exist for a legitimate reason. A horse in heavy training, a lactating mare, or a hard keeper burning more calories than forage supplies often cannot physically eat enough hay to hold weight. The caution is equally legitimate. In a case-control study published in the Equine Veterinary Journal, researchers compared feeding practices in horses diagnosed with duodenitis-proximal jejunitis, a serious colic syndrome, against two control populations admitted for colic of other types or lameness. Horses with duodenitis-proximal jejunitis were fed significantly more concentrate daily than either control group and were also significantly more likely to have grazed pasture, though the authors concluded the observed associations were not strong enough to use diagnostically or predictively [3]. The practical takeaway for owners is proportional: the more concentrate in the bucket, the more reason to keep the amount deliberate, measured, and justified by the horse's actual workload. ### Formulated Feeds, Pellets, and Balancers Formulated feeds are manufactured products designed to deliver predictable energy along with fortified vitamins and minerals. Pelleted complete feeds and low-intake balancers solve a real problem: hay alone often falls short in minerals such as zinc, copper, and selenium, and a small scoop of a fortified product corrects that without adding large amounts of starch. Still, "formulated to meet requirements" and "metabolically identical to another balanced diet" are not the same claim. In a three-month trial, 61 healthy adult dogs were fed either a plant-based or a meat-based extruded diet, both of which met industry nutrient recommendations and contained similar total protein and fat. Metabolomic testing nonetheless found differences in 11 of 47 amino acid and protein metabolites between the groups, showing that diets can satisfy published nutrient targets while still producing different internal metabolic profiles [4]. Translated to horse feeding, this is an argument for treating the feed tag as a starting point and confirming the outcome on the horse, through body condition, coat, and hoof quality, rather than assuming the label guarantees the result. Balancers deserve their own note because they are the quiet workhorse of forage-based programs. A balancer supplies protein, vitamins, and minerals in a small daily serving without the calorie load of a full concentrate. That makes it the default answer for the easy keeper who needs minerals but not more energy. ### Supplements and Blocks Free-choice and self-fed supplements, including mineral blocks and lick products, look effortless but behave in ways owners often misunderstand. A study of rotationally grazed beef cattle using digital in-paddock feeders and walk-over weighing found that self-fed molasses-lick block intake was 111% higher when forage availability was low compared with when it was high, and daily intake varied enormously over time. Supplementation only improved liveweight change on some forage types, specifically sudangrass, autumn pasture, and oaten hay, and not on others [5]. The principle carries directly into horse keeping. Animals consume self-fed supplements in response to what the pasture is not providing, which means block intake is a signal about forage quality, not a fixed dose you can set and forget. Monitoring actual intake, and the horse's response to it, is part of the job. ## Horse Feed Types Comparison: Pros and Cons For owners specifically weighing horse feed types comparison pros and cons, here is the honest ledger for each option. **Pasture** - Pros: natural continuous intake, lowest cost per calorie in season, encourages normal movement and social behavior. - Cons: quality swings with weather and season, sugar content can be high in spring and fall flushes, overgrazed fields lose nutritional value. **Hay** - Pros: predictable base feed, works year-round, testable in a laboratory before purchase. - Cons: batch variation, storage losses, dust in poorly cured bales, cost rises through winter. **Silage and haylage** - Pros: nutrient preservation, low dust, often palatable. - Cons: requires disciplined storage and rapid use after opening, spoilage and botulism risk from compromised bales, heavier handling equipment. **Concentrates** - Pros: dense calories for horses with high requirements, convenient delivery of energy in small meals. - Cons: starch-heavy rations have been associated with digestive disease in dose-dependent patterns [3], easy to overfeed, and feeding large concentrate amounts crowds out the forage a horse's gut expects. **Formulated feeds and balancers** - Pros: nutrient consistency, correct mineral fortification, portion control. - Cons: cost per pound is higher than straight grains, and meeting label requirements does not guarantee identical metabolic outcomes across products [4]. **Supplements and blocks** - Pros: fill specific gaps, low labor. - Cons: unpredictable intake, evidence from grazing cattle shows consumption tracks forage scarcity rather than a target dose [5], and they add cost without calories when calories are the actual problem. ## How to Compare Feed Types on the Criteria That Decide Real Choices ### Digestive Fit The horse's digestive tract is built around a continuous supply of fermentable fiber. Any horse feed types comparison should therefore start with the question of how much of the ration is forage. Concentrate is a supplement to that base, not a replacement for it. The duodenitis-proximal jejunitis study is the clearest published signal here, showing that the amount of concentrate fed daily was significantly greater in affected horses than in control horses [3]. ### Mineral Profile and Hoof Quality Feed choice reaches all the way to the ground the horse stands on. The silage-versus-concentrate trial demonstrated that diet type directly affected hoof concentrations of magnesium, zinc, potassium, and sodium as well as hoof tensile strength measured with a universal testing machine, and that both diet and hormonal stage shaped those outcomes [2]. For owners, the practical point is that hoof quality is a feed-quality question. If hooves deteriorate on a new ration, the feed program belongs in the conversation with your veterinarian and farrier. ### Energy Requirement Versus Workload Match the feed to the job. An idle horse on decent pasture or hay often needs nothing but a balancer. A horse in consistent heavy work may need concentrate calories on top of forage. The mistake runs in both directions: pouring grain into an easy keeper, and starving a performance horse on forage alone. ### Intake Behavior and Monitoring What a horse actually eats often differs from what the plan says it eats. Remote monitoring research in grazing cattle recorded supplement intake daily with electronic in-paddock feeders and found enormous temporal variability in self-fed consumption, with intake rising sharply as forage quantity and quality fell [5]. If you feed free-choice products, assume intake will drift and build a check into your routine. ### Cost, Labor, and Environmental Footprint Feed is the largest recurring expense in most horse budgets, and it also carries an environmental cost. Life cycle assessment work in animal nutrition shows that mathematical models can predict feed intake, growth, and nutrient excretion in response to animal characteristics and management, improving the inventory data that environmental impact assessments depend on, with emission estimates progressing from simple default factors to complex mechanistic approaches [6]. For a horse owner, the practical read is that feed efficiency matters beyond the wallet. A ration that meets the horse's needs with less waste and fewer purchased inputs generally scores better on both cost and environmental impact than one that overfeeds and excretes the surplus. ## Worked Scenarios ### Scenario 1: The Easy Keeper An overweight adult horse in light work on good pasture. The core problem is calorie surplus, not deficiency. The sensible ration is controlled forage access, a low-intake balancer for minerals, and no concentrate. Weigh the horse or assess body condition score monthly and record it. If spring grass triggers weight gain or soft hoof rings, that is a prompt to discuss pasture restriction with your veterinarian before laminitis becomes the teacher. ### Scenario 2: The Hard Keeper in Full Training A lean horse in consistent heavy work that drops weight on free-choice hay. Here the forage base stays, and concentrate or a formulated high-fat feed is added in measured, divided meals. Increase amounts gradually, keep forage first in the ration, and track body condition every two weeks during the ramp-up. If weight stalls, the question is whether the horse needs more calories, better forage, or a dental and veterinary exam, and that answer requires a professional. ### Scenario 3: The Performance Horse With Poor Hoof Quality A horse in moderate work whose hooves chip and crack despite good farriery. The hoof mineral study is directly relevant, because it showed that hoof mineral concentrations and tensile strength respond to diet type over a 12-month horizon [2]. A sensible step is to have the current forage analyzed, review the mineral coverage of the ration with your veterinarian or an equine nutritionist, and then re-evaluate hoof quality after a realistic timeframe, since hoof horn does not remodel overnight. ## Common Mix-Ups **Confusing volume with nutrition.** A scoop is a volume, not a weight. Two feeds with identical scoop volumes can deliver very different calories and minerals. **Treating balancers as calories.** A balancer fixes mineral gaps in a forage-only ration. It will not put weight on a thin horse, and continuing to add it while the horse loses condition misreads the problem. **Assuming supplement blocks are dosing devices.** The cattle monitoring data showed self-fed intake spiked when forage ran short and swung wildly day to day [5]. A block consumed aggressively is information about forage, not a license to ignore the hay quality. **Switching feeds for cosmetic reasons.** In human infant feeding research, regurgitation and restlessness drove unnecessary formula switches in nearly half of studied infants within six months, most often to another version of essentially the same product [7]. Horse owners do a version of the same thing, churning feed brands in response to minor observations before giving any ration a fair trial. Feed changes deserve a reason, a plan, and a transition period. **Ignoring the forage report.** Buying feed by color, smell, or price per bale while skipping a forage analysis leaves the mineral and energy content of the whole ration unknown. ## A Horse Care Checklist for Feed Management Because feeding decisions succeed or fail on day-to-day follow-through, fold the feeding items into a broader horse care checklist you actually use: 1. Weigh or body condition score every horse on a fixed schedule, at least monthly, and note it. 2. Feed by weight, not by scoop, and know what each meal actually contains. 3. Make any feed change gradually over days to weeks rather than overnight. 4. Store hay and concentrates dry, off the ground, and away from moisture and pests. 5. Inspect wrapped forage for damage and discard suspect bales rather than risking spoiled feed. 6. Confirm clean, unfrozen water is available at all times, since hydration underpins digestion. 7. Match concentrate amounts to current workload, and reduce them when work drops. 8. Keep a salt and mineral source appropriate to the ration, and check consumption rather than assuming it. 9. Watch manure consistency and output daily, because the gut reports diet problems early. 10. Review the whole ration with your veterinarian at least annually, or sooner if condition, hoof quality, or workload changes. ## Tracking Results With a Horse Health Record Template A ration is an experiment, and experiments need records. A simple [horse health record template](/knowledge/veterinary-medicine/equine-care/horse-health-record-template) for feeding purposes should capture, for each horse: date, current body condition score, body weight or weight-tape measurement, forage type and estimated daily amount, concentrate and supplement products with daily amounts, any ration changes with their start dates, hoof quality notes at each farrier visit, and manure or colic observations. Over a season, that record turns vague impressions into a trend line, and it gives your veterinarian exactly the information needed to evaluate whether a feed program is working. The value of consistent measurement is well established in livestock research. In the rotational grazing study, daily digital records of supplement intake and liveweight revealed patterns, such as a 111% higher supplement intake under low forage availability, that periodic eyeballing would have missed entirely [5]. Owners who record monthly instead of daily still capture the meaningful trend, which is the point. ## Limitations and When to Contact a Veterinarian ![Decision path from a feeding or health change to whether to call the vet, ending in prompt veterinary contact.](/article-images/illustrations/horse-feed-types-comparison-vet-contact-triage.webp) Individual cases need a veterinarian. The studies summarized here were conducted under specific conditions, in specific populations, and in some cases in other species, and they establish associations and mechanisms rather than prescriptions for your particular horse. Contact your veterinarian promptly if any of the following occur: - Signs of colic, including pawing, flank watching, rolling, or refusal to eat. - Sudden or unexplained weight loss despite unchanged feeding. - Diarrhea, especially with lethargy or fever. - Feed refusal lasting more than one meal, or difficulty chewing and dropping feed. - Laminitis indicators, including digital pulse heat, foot tenderness, or a stance shift. - Rapid deterioration in hoof quality, or hoof changes coinciding with a ration change. - Suspected moldy, spoiled, or contaminated feed having been consumed. Any ration change for a horse with a history of colic, laminitis, or metabolic disease should be designed with veterinary input from the start. ## Frequently Asked Questions ### What is the healthiest feed type for most horses? For most idle and lightly worked horses, a forage-based ration of good pasture or tested hay, plus a balancer if minerals fall short, is the healthiest foundation. Research shows that forage-based and concentrate-based diets produce measurably different mineral profiles in the horse, including in hoof tissue [2], which is one reason nutritionists default to forage first. ### Can a horse live on hay alone without any concentrate? Many can, if the hay is good quality and the horse's workload is light. Whether your horse specifically can depends on the forage analysis, the horse's body condition, and its workload, so have your ration evaluated before removing fortified feed. ### How much concentrate is too much? The clearest published signal is dose-related: in a case-control study of duodenitis-proximal jejunitis, affected horses were fed significantly more concentrate per day than control horses, although the association was not strong enough to serve as a predictive rule [3]. Keep concentrate to the minimum that achieves the horse's condition and energy goals, and review the total ration with your veterinarian. ### Is silage or haylage safe for horses? It can be, when bales are well made, stored correctly, and used promptly after opening. Poorly preserved wrapped forage carries spoilage risks, so buy from producers with good process control and inspect every bale before feeding. ### How long should I give a new feed before judging it? ![Flow of four steps for a new feed: record body condition, transition over days to weeks, evaluate for a month or more, then review the ration.](/article-images/illustrations/horse-feed-types-comparison-ration-change-steps.webp) Allow a gradual transition over days to weeks, then evaluate for a full month or more, since outcomes such as hoof quality develop over months rather than days [2]. Record body condition before the switch and at regular intervals afterward so the comparison is honest. ### Do I need a supplement if my horse looks healthy? Appearance alone does not confirm mineral adequacy, because hay and pasture vary in mineral content and formulated products differ in what they deliver even when both meet published nutrient targets [4]. A forage analysis plus a ration review is the reliable way to decide, rather than adding products speculatively. ## Sources 1. [Visit, consume and quit: Patch quality affects the three stages of foraging.](https://pubmed.ncbi.nlm.nih.gov/29995984/) 2. [Comparison of the Mineral Profile of Two Types of Horse Diet, Silage and Commercial Concentrate, and Their Impacts on Hoof Tensile Strength.](https://pubmed.ncbi.nlm.nih.gov/36428431/) 3. [Are feeding practices associated with duodenitis-proximal jejunitis?](https://pubmed.ncbi.nlm.nih.gov/17124842/) 4. [Metabolic profiles show few differences in serum amino acid, one-carbon, and fatty acid compounds in dogs fed a plant-based ("vegan") or meat-based diet.](https://pubmed.ncbi.nlm.nih.gov/42344141/) 5. [Real-Time Monitoring of Self-Fed Supplement Intake, Feeding Behaviour, and Growth Rate as Affected by Forage Quantity and Quality of Rotationally Grazed Beef Cattle.](https://pubmed.ncbi.nlm.nih.gov/31842436/) 6. [ASAS-NANP symposium: mathematical modeling in animal nutrition: contributions of mathematical modeling to life cycle assessment to support environmental sustainability of animal production.](https://pubmed.ncbi.nlm.nih.gov/41410510/) 7. [Infant feeding patterns in the first 6 months: an assessment in full-term infants.](https://pubmed.ncbi.nlm.nih.gov/17667721/)