In barns across Canada, the quiet work of keeping horses healthy often begins long before a saddle is lifted from the rack. It starts with the feed room, the hay stack, the pasture gate and the daily question that shapes every ration: is this horse getting what it needs to thrive?
Vitamins and minerals are part of that answer. Adequate intake supports normal health, growth, tissue maintenance, muscle function and metabolic activity. Yet the practical challenge for horse owners is not whether these nutrients matter, but how to provide them with confidence when forage, grain, workload and individual health needs can vary so widely.
The best vitamin and mineral supplement for a horse is the one that balances the diet, not simply the one with the longest label. In most forage-based programs, that means supplying nutrients commonly missing or underrepresented in hay, pasture and grain rations, including vitamin E, selenium, zinc and copper. It also means looking beyond a basic minimum and asking whether the program supports the horse in front of you, from hoof quality and coat condition to topline, recovery and overall well being.
For Mad Barn, that conversation most often centres on two complete formulas: Omneity® Premix and AminoTrace+. Both are comprehensive vitamin and mineral supplements designed to help horses meet daily nutrient requirements while supporting the systems owners watch most closely: feet, muscle, skin, coat, digestion, metabolism and performance.
For the majority of horses, Omneity® is the most practical all-around choice. It provides complete daily vitamin and mineral support in a palatable, concentrated formula with 100% organic trace minerals, complete B-vitamin fortification, digestive enzymes and live yeast cultures. For horses with higher nutritional demands, AminoTrace+ is the enhanced option, with elevated levels of key nutrients for hoof growth, antioxidant status, muscle maintenance and metabolic support, especially where concerns such as insulin dysregulation, laminitis history or high-iron forage are part of the picture.
Forage should remain the foundation of the equine diet. Hay and pasture provide the fibre horses need for digestive health and usually supply most of the calories and protein in the ration. On paper, that sounds simple. In practice, forage is a living crop shaped by soil type, plant species, maturity at harvest, weather and storage conditions. Its nutrient profile can change from field to field and from one cutting to the next.
That variability is one reason forage alone does not consistently provide all of the vitamins, minerals and amino acids required to fully balance the diet. Vitamin E offers a clear example. Horses grazing fresh pasture generally consume higher levels of vitamin E than horses eating harvested or stored forage, which is why hay-based diets often require additional antioxidant support.
Commercial feed can also leave gaps when it is not fed at the manufacturer’s recommended rate. Many fortified feeds are designed to be fed in larger amounts than many horses actually need for body condition. When an easy keeper, idle horse or horse in light work receives less than a full serving, calories may be managed appropriately, but vitamin and mineral intake can fall short.
A concentrated vitamin and mineral supplement solves that practical problem by separating nutrient delivery from calorie delivery. Instead of adding grain to meet micronutrient needs, owners can provide targeted nutrition without unnecessary calories, starch, sugar, iron or filler ingredients.
This is where a complete all-in-one supplement such as a complete daily balancer or an enhanced vitamin and mineral formula can play a central role. The goal is not to replace forage, but to complete it.
A 2021 Mad Barn analysis of more than 6,500 equine diets found that the most common deficiencies in forage-based diets and grain feeding programs included sodium, vitamin E, selenium, zinc and copper.
When intake remains low, these shortfalls can affect multiple systems. The signs may be familiar: dull coat quality, brittle feet, slow hoof growth, poor topline, lower resilience under stress or exercise intolerance.
The more difficult cases are the ones that do not announce themselves clearly. Horses can have subclinical deficiencies, where nutrient intake is low enough to affect normal physiological processes without producing obvious clinical signs. A horse may look generally well and still struggle with hoof quality, muscle development, antioxidant capacity, immune function or recovery.
That is why ration balancing is less about chasing symptoms and more about building a reliable nutritional foundation before small gaps become visible problems.
Equine nutrient requirements are based on guidelines published by the National Research Council in the United States. Owners can estimate an individual horse’s needs using Mad Barn’s Equine Nutrition Calculator, which considers body weight, age, workload, growth and reproductive status such as pregnancy or lactation.
Meeting those requirements matters. They provide an essential baseline for energy, protein, vitamins and minerals. But in real barns, they should be treated as the minimum standard, not always the optimal target for long-term health, soundness and performance.
A horse’s practical nutrient needs can be influenced by forage quality, gut health, stress, illness, training demands, mineral interactions and individual variation. High iron intake is a common example. A horse may consume adequate copper and zinc on paper, yet absorb or utilize them less efficiently when iron levels are high. In those situations, more targeted trace mineral fortification can be useful.
Biotin illustrates another important distinction. The NRC does not list an official biotin requirement for horses, but research shows that 20 mg per day for a 500 kg (1,100 lb) horse can improve hoof horn quality and support hoof growth.
The question, then, is not only whether a horse is technically deficient. It is whether the diet is balanced well enough to support the horse’s hooves, topline, metabolic health, exercise recovery and day-to-day resilience within the context of its forage and management.
A well-formulated equine vitamin and mineral supplement should do more than add a few isolated nutrients. Its role is to help balance the entire ration by supplying the vitamins, minerals and amino acids most commonly lacking in forage-based feeding programs.
The first question is whether the supplement will actually balance the horse’s diet at the recommended feeding rate. That can be checked by entering the horse’s age, weight, workload, physiological status and current ration into Mad Barn’s Horse Nutrition Calculator.
When fed correctly, a concentrated all-in-one supplement should help meet most vitamin and mineral requirements. Sodium is the major exception because horses need relatively large amounts of salt to maintain hydration and replace daily electrolyte losses. For a 500 kg (1,100 lb) horse, that generally means at least two tablespoons of plain loose salt per day, in addition to constant access to free-choice loose salt.
Beyond baseline requirements, the strongest all-in-one supplements for horses provide a broad, nutrient-dense profile without adding unnecessary sugar, starch or calories.
Mad Barn’s complete vitamin and mineral supplements were formulated around these priorities. Omneity® and AminoTrace+ both use 100% organic trace minerals, contain no added iron and provide the core nutrients professional equine nutritionists emphasize when building a balanced ration.
For most horses on forage-based diets or underfortified grain programs, Omneity® Premix is the best overall vitamin and mineral supplement. It is designed to cover common ration gaps with essential vitamins, organic trace minerals and amino acids, while also supporting digestion through yeast and enzymes.
One of its practical advantages is simplicity. In many programs, owners do not need to layer a separate hoof product or individual nutrients on top of the all-in-one balancer, because the formula already provides comprehensive daily nutrition.
Omneity® Premix is the loose powdered format, fed at 120 g per day for a 500 kg (1,100 lb) horse. Omneity® Pellets provide the same core nutritional profile in a pelleted format, fed at 200 g per day for a 500 kg horse.
The premix format is also cost-effective, at approximately $0.84 per day when purchased with a subscription, based on the typical feeding rate for a 500 kg horse.
For many owners, the appeal is confidence. The daily formula provides broad nutritional coverage in one concentrated product, supports the outcomes horse owners care about most and helps ensure the diet is balanced without relying on added grain.
Some horses need more than a standard balancer. AminoTrace+ was developed for horses with higher nutritional demands, including those with metabolic concerns, a history of laminitis, poor hoof quality or diets high in iron.
It can also be a strong option for performance horses facing the added demands of training, recovery, travel, antioxidant support and muscle maintenance. Like Omneity® Pellets, AminoTrace+ is fed at 200 g per day for a 500 kg horse, but it provides a more concentrated nutrient profile.
Compared with the daily Omneity formula, the enhanced AminoTrace+ profile provides a more advanced nutrient profile for horses that need extra support for metabolic health, hoof quality, antioxidant status and muscle maintenance.
For horses with EMS, PPID, insulin dysregulation, a history of laminitis, persistent poor hoof quality or high-iron forage, the enhanced formula is often the stronger choice.
The decision begins with the horse’s individual nutritional needs, then moves to the feeding program and the format the horse will reliably eat.
In practical terms, Omneity® Premix, Omneity® Pellets and AminoTrace+ give owners three clearly defined routes: powdered daily support, pelleted daily support and enhanced pelleted support. For picky eaters, Omneity® Pellets can make daily consistency easier.
If the horse is generally healthy, eating a forage-based diet or a modest grain program, and the goal is to cover common nutrient gaps with one complete formula, choose Omneity®. If the horse has insulin dysregulation, is prone to laminitis, has poor hoof quality, is consuming high-iron forage or needs a more concentrated nutrient profile, choose AminoTrace+.
Format matters too. The premix format is a loose powder that can be top-dressed on feed or mixed into a carrier such as beet pulp. The pelleted formats are designed, making them easier to feed to horses that are picky about powders or do not receive a separate carrier.
Table 1. Comparison of Mad Barn complete vitamin and mineral supplements with nutrient supply per serving.
| Feature | Omneity® Premix | Omneity® Pellets | AminoTrace+ |
| Format | Powder | Pellet | Pellet |
| Cost per day* | $0.84 | $1.19 | $2.09 |
| Feeding rate | 120 g/day | 200 g/day | 200 g/day |
| NSC | Negligible | < 5% | < 5% |
| Copper | 120 mg | 120 mg | 300 mg |
| Zinc | 498 mg | 480 mg | 750 mg |
| Selenium | 2.4 mg | 2.4 mg | 2 mg |
| Magnesium | 5.4 g | 5.2 g | 11 g |
| Vitamin E | 1,020 IU | 980 IU | 1,250 IU |
| Biotin | 20 mg | 18 mg | 20 mg |
| Lysine | 3.4 g | 3.6 g | 10 g |
| Methionine | 1.1 g | 1.2 g | 6 g |
| Threonine | 1.4 g | 1.6 g | 5 g |
| Iron | No added iron | No added iron | No added iron |
| Gut support | Yeast and enzymes | Yeast and enzymes | Yeast and MOS |
*Cost per day is calculated using a 5% subscription discount and the typical feeding rate for a 500 kg (1,100 lb) horse.
Table 2. Matching horse profile to supplement choice.
| Horse profile | Best fit | Why |
| Healthy adult horse on hay or pasture that needs broad daily nutritional support | Omneity® Premix or Omneity® Pellets | Balances most forage-based diets and grain programs with vitamins, organic trace minerals, limiting amino acids, yeast and digestive enzymes. |
| Horse receives fortified grain, but less than the full recommended feeding rate | Omneity® Premix or Omneity® Pellets | Helps fill vitamin and mineral gaps that remain when fortified feeds are underfed. |
| Growing horse, broodmare or breeding stallion that needs complete nutritional coverage | Omneity® Premix or Omneity® Pellets | Provides broad vitamin, mineral and amino acid support for higher overall nutrient demands. |
| Horse already eats a mash, soaked feed or beet pulp and needs an affordable mineral topdress | Omneity® Premix | Loose powdered vitamin and mineral supplement at a low feeding rate. |
| Horse is picky about powders or is not getting another carrier feed | Omneity® Pellets | Provides the same core nutrition as the premix in a palatable pellet made with low-NSC oat hulls. |
| Easy keeper with EMS, PPID, insulin dysregulation or a history of laminitis | AminoTrace+ | Low-calorie, low-NSC formula with higher copper, zinc, magnesium, natural vitamin E and amino acids. |
| Horse is on high-iron forage or shows signs such as coat bleaching or poor hoof growth | AminoTrace+ | No added iron and higher levels of copper and zinc to support mineral balance. |
| Horse needs more support for intense exercise, topline or muscle health | AminoTrace+ | More concentrated trace minerals, magnesium, amino acids and natural vitamin E. |
Owners who would like support choosing among the three formulas can submit the horse’s diet for a free ration balancing review through Mad Barn’s equine nutritionists. The review can help identify nutrient gaps, mineral imbalances and the best all-in-one balancer for the individual horse.
These complete vitamin and mineral supplements and should not be fed together, because combining them would create overlapping vitamin and mineral intake. When a horse needs additional support for a specific health concern or performance goal, targeted supplements can be added alongside the chosen foundational product as appropriate.
The best vitamin and mineral supplement for your horse is the one that corrects the gaps in the diet and fits the horse’s individual needs. A well-formulated product should supply nutrients commonly lacking in forage, support hoof quality, topline, skin and coat health and overall well being, and do so without unnecessary iron, fillers, sugar or starch.
For most horses, the daily Omneity formula remains the best overall choice. It is a complete all-in-one balancer for forage-based diets and underfortified grain programs, giving owners a straightforward way to cover common nutritional gaps with one product.
Choose the premix format if your horse accepts powdered supplements well or already receives another carrier feed, and you want the most concentrated and economical format.
Choose Omneity® Pellets if your horse prefers a pellet or is not receiving another carrier feed. It provides the same core nutritional value as the premix in a convenient, palatable format that can be fed on its own.
Choose the enhanced AminoTrace+ formula when your horse needs an enhanced formula, especially in cases involving metabolic concerns, high-iron forage, easy-keeper management, poor hoof quality or a need for higher copper, zinc, magnesium, antioxidant and amino acid support.
A balanced ration will not make headlines in the same way a championship performance does. But for the horse, it is often the quiet foundation behind stronger feet, better condition, steadier energy and the resilience to do the work asked of them every day.