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The best Mad Barn supplement for most horses to start with is Omneity^®. Omneity is a complete vitamin and mineral supplement formulated to balance forage-based diets, which are often the foundation of an equine feeding program but rarely provide all of the micronutrients needed for optimal health.

Hay and pasture commonly fall short in key nutrients such as copper, zinc, selenium, sodium, vitamin E, and essential amino acids like lysine. These nutrients are important for normal hoof growth, skin and coat quality, immune function, muscle metabolism, and overall condition. Even when horses appear to be doing well on forage alone, subclinical deficiencies can still limit long-term health, performance, and well-being.

Omneity is designed to fill those common gaps by providing a broad spectrum of nutrients in a measured daily serving, including 20 mg of biotin, complete B-vitamin fortification, essential amino acids, and 100% organic trace minerals such as copper, zinc, manganese, and selenium. This makes it a strong fit for most horses because it addresses the core nutritional weaknesses of forage-based diets without adding unnecessary calories, starch, or filler ingredients.

By correcting common micronutrient deficiencies, Omneity helps support stronger hooves, better coat quality, healthy metabolism, and a more balanced overall diet. Horses with metabolic concerns, persistent hoof issues, or diets high in iron may be better suited to Mad Barn’s AminoTrace+, which provides higher levels of copper and zinc to support trace mineral balance in those more demanding situations.

The most commonly used Mad Barn supplements for competition horses include Omneity, Visceral+, AminoTrace+, w-3 Oil, Magnesium, Performance XL Electrolytes, and NOCR. Each of these products supports a different aspect of health or performance that becomes more important as training intensity and travel increase.

Omneity provides complete vitamin and mineral coverage to balance forage-based diets. Competition horses have higher micronutrient demands due to training stress and muscle turnover, and nutrients such as copper, zinc, selenium, vitamin E, and amino acids are critical for tissue repair, immune function, and metabolic efficiency.

Visceral+ supports gastric and hindgut health, which is particularly important for horses that travel frequently, experience training stress, or consume higher-grain diets. Maintaining gut health helps preserve appetite, nutrient absorption, and overall performance.

AminoTrace+ provides elevated copper and zinc levels along with antioxidant nutrients that help correct trace mineral imbalances often seen in horses consuming high-iron forage. Proper trace mineral balance supports hoof quality, connective tissue strength, and metabolic health.

w-3 Oil supplies DHA-rich omega-3 fatty acids that help maintain normal inflammatory balance and support joint comfort, respiratory health, and coat quality.

Magnesium supports normal nerve function and muscle relaxation, which can help maintain focus and reduce muscle tension in horses under heavy training or competition pressure.

Performance XL Electrolytes replace minerals lost through sweat during exercise. Sodium, chloride, potassium, calcium, and magnesium must be replenished to maintain hydration, nerve signaling, and normal muscle contraction.

NOCR supports respiratory efficiency and oxygen delivery, helping performance horses maintain stamina and recover more effectively following intense work.

The ideal combination of supplements depends on the horse’s discipline, workload, travel schedule, and individual nutritional needs. A Mad Barn nutritionist can review the horse’s forage and current diet to develop an optimized feeding plan that supports both health and performance.

Mad Barn supplements are formulated by professional equine nutritionists using evidence-based ingredients and physiologically meaningful nutrient inclusion rates. Rather than focusing on marketing or hype, the goal is to provide nutrients horses actually require in forms and amounts that contribute to balancing the diet.

For example, Mad Barn’s Omneity is a vitamin and mineral supplement designed to help balance forage-based diets for most horses. It provides 20 mg of biotin per serving, complete B-vitamin fortification, essential amino acids, and chelated organic trace minerals such as copper and zinc to support hoof growth, metabolic function, and immune health. AminoTrace+ provides higher copper and zinc levels to help correct trace mineral imbalances commonly seen in horses consuming high-iron forage.

Transparency is another key difference. Mad Barn clearly lists ingredient amounts so horse owners, veterinarians, and nutritionists can evaluate exactly what nutrients are being provided. Supplements are produced in an equine-only manufacturing facility, reducing the risk of cross-contamination from ingredients used in feeds for other species, and many products are registered as Veterinary Health Products (VHPs) with Health Canada, which requires review of ingredient safety, label claims, and manufacturing standards.

Mad Barn also reinvests product sales into research, education, and technology that support horse health and well-being, including diet analysis tools, equine nutrition research, and educational resources that help horse owners make informed feeding decisions. Horse owners who want to ensure their feeding program is properly balanced can work directly with Mad Barn nutritionists by submitting a free diet evaluation.

For most horses, the best Mad Barn supplement to balance a forage-based diet is Omneity. Omneity is formulated to supply vitamins, trace minerals, and amino acids that are commonly lacking in hay and pasture, including copper, zinc, selenium, vitamin E, sodium, and lysine.

These nutrients play important roles in connective tissue formation, antioxidant defense, immune function, and muscle metabolism. By supplying them in balanced ratios using highly bioavailable ingredients, Omneity helps correct the most common micronutrient gaps found in forage-based diets.

However, some horses benefit more from Mad Barn’s AminoTrace+, particularly when forage contains elevated iron or when higher levels of copper and zinc are needed to support trace mineral balance and hoof health.

The best choice depends on your horse’s forage and overall feeding program. Mad Barn nutritionists can review your hay analysis and feeding program to develop a balanced ration. You can submit your horse’s information through a free diet evaluation to receive personalized recommendations.

The best Mad Barn supplement for hoof support in horses is AminoTrace+. AminoTrace+ provides elevated levels of copper and zinc along with 20 mg of biotin per serving and essential amino acids that support the production of keratin, the structural protein that forms hoof horn.

Strong hooves depend on proper trace mineral balance. Copper and zinc are required for collagen formation and cross-linking within connective tissues, while biotin supports keratin synthesis in the hoof wall. Many forage-based diets are relatively high in iron but low in copper and zinc, and excess iron can interfere with the absorption of these minerals.

When trace minerals are out of balance, horses may experience slow hoof growth, brittle hoof walls, cracks, or poor horn quality. By restoring appropriate copper and zinc ratios and supplying key nutrients involved in hoof formation, AminoTrace+ helps support stronger hoof walls, improved hoof growth, and better long-term hoof integrity.

The best Mad Barn supplement for supporting stomach and hindgut health is Visceral+. Visceral+ is formulated to support the health of both the stomach and the hindgut, two areas of the digestive tract that are commonly affected by stress, training intensity, and feeding practices.

Horses are designed to eat small amounts of forage continuously throughout the day. Travel, intermittent feeding schedules, high-grain diets, and training stress can disrupt this natural feeding pattern and increase the risk of gastric irritation while also affecting the balance of microbes in the hindgut.

Visceral+ contains ingredients that help maintain the integrity of the gut lining and support a stable hindgut microbial environment. A healthy digestive tract allows horses to digest fiber efficiently, absorb nutrients properly, and maintain normal immune function, since a large portion of the immune system is associated with the gut.

The best Mad Barn supplement for horses with metabolic health concerns is AminoTrace+. AminoTrace+ provides elevated levels of copper and zinc along with antioxidant nutrients that help support normal metabolic function.

Many horses with metabolic issues consume forage that contains elevated iron levels. Iron competes with copper and zinc for absorption in the digestive tract, and when copper and zinc intake is relatively low, this imbalance can affect metabolic processes, connective tissue health, and hoof quality.

By restoring more appropriate trace mineral ratios and supplying nutrients involved in antioxidant defense and metabolic regulation, AminoTrace+ helps support healthy glucose metabolism, hoof integrity, and overall metabolic balance in horses with insulin resistance, equine metabolic syndrome, or laminitis risk.

The best Mad Barn supplements for joint support are a combination of w-3 Oil and MSM. These supplements support joint health in complementary ways. Omega-3 fatty acids help maintain normal inflammatory signaling in joints, while MSM provides sulfur needed to support connective tissue such as cartilage and ligaments.

w-3 Oil provides DHA-rich omega-3 fatty acids derived from algae along with natural vitamin E. DHA helps maintain normal regulation of inflammatory balance in joint tissues and supports overall musculoskeletal function. Horses fed primarily hay typically consume very little omega-3 fatty acids because stored forage contains minimal DHA.

MSM (methylsulfonylmethane) supplies a highly bioavailable source of sulfur, an essential component of connective tissue structures such as cartilage, tendons, and ligaments. Sulfur is required for the formation of collagen and other structural proteins that contribute to joint stability and normal tissue repair.

Using w-3 Oil together with MSM helps support joint mobility, connective tissue health, and recovery from exercise by addressing both inflammatory balance and structural tissue support. This combination is commonly used in performance horses and aging horses that require additional joint support.

The best Mad Barn supplement for supporting muscle development and topline is Three Amigos. Three Amigos provides concentrated amounts of the three essential amino acids most commonly limiting in equine diets — lysine, methionine, and threonine — which are required for muscle protein synthesis and tissue repair.

Many horses consume adequate total protein, but the amino acid profile of their diet may still limit muscle development. Lysine is typically the first limiting amino acid for horses, followed by methionine and threonine. When one of these amino acids is deficient, the body cannot efficiently use the other amino acids present in the diet to build muscle.

Three Amigos supplies these key amino acids in targeted amounts to help support topline development, muscle maintenance, and recovery from work when used alongside a properly balanced vitamin and mineral program.

Horses that also need additional calories to maintain body condition can be fed Three Amigos alongside w-3 Oil, which provides calorie-dense omega-3 fatty acids to support weight maintenance, joint comfort, and skin and coat health.

There is no single supplement that works for every horse, because behavior and reactivity can be influenced by many different factors. When nutritional support is appropriate, several Mad Barn supplements may help depending on the underlying cause of the behavior. Magnesium Oxide is often used when horses show signs of muscle tension, sensitivity, or difficulty relaxing. Magnesium plays an important role in nerve signaling and muscle relaxation, and horses consuming forage grown on certain soils or under high training stress may have marginal magnesium intake. Providing supplemental magnesium can help support normal neuromuscular function and may contribute to a calmer, more relaxed demeanor in some horses.

Hormonal fluctuations can also influence temperament, particularly in mares during estrus or in horses experiencing endocrine changes. In these situations, Chasteberry is sometimes used to support normal hormone regulation and a balanced stress response. Behavioral changes can also be linked to discomfort or digestive disturbances. Horses experiencing gastric irritation or hindgut imbalance may become more reactive or unwilling to work, and supplements such as Visceral+ are designed to support gastric and hindgut health, helping maintain digestive comfort and a stable gut environment.

It is also important to ensure the horse’s basic nutritional needs are met. Inadequate vitamin and mineral intake can contribute to poor stress tolerance, muscle tension, and inconsistent behavior. A complete vitamin and mineral supplement such as Omneity helps balance the diet by providing nutrients commonly lacking in hay and pasture, including magnesium, B-vitamins, trace minerals, and essential amino acids that support normal metabolic and neurological function.

Because behavior can be influenced by nutrition, digestive health, management practices, and physical comfort, calming supplements tend to work best when used as part of a broader management plan that includes a balanced diet, adequate turnout, consistent routines, and addressing any underlying sources of discomfort.

The best supplement to support respiratory health in horses is Mad Barn’s NOCR. NOCR is formulated to support oxygen delivery and respiratory efficiency in horses that perform intense work or train regularly. Respiratory function is closely tied to performance because working muscles rely on a steady supply of oxygen to produce energy. During strenuous exercise, horses move very large volumes of air through their lungs every minute, and even small limitations in oxygen delivery can reduce stamina and slow recovery following work.

Horses are also frequently exposed to environmental factors that place additional strain on the respiratory system. Dust from hay and bedding, indoor arenas, seasonal allergens, and travel can all affect respiratory comfort and efficiency. Supporting respiratory function nutritionally can help horses maintain consistent oxygen utilization during exercise and better cope with these stressors. NOCR provides nutrients that help support normal respiratory function and antioxidant protection, which are both important for maintaining stamina and supporting recovery after intense training or competition.

Respiratory supplements are most effective when combined with good stable management practices such as feeding low-dust forage, maintaining proper ventilation in the barn, and conditioning horses gradually for the demands of their discipline. When these management practices are in place, nutritional support from a targeted formula like NOCR can help performance horses maintain respiratory efficiency and perform more consistently.

Many Mad Barn supplements can be safely fed together when used according to label recommendations because each product is formulated to address a different aspect of equine nutrition or health. Most feeding programs begin with a complete vitamin and mineral supplement such as Omneity or AminoTrace+, which help balance the horse’s base diet by supplying essential micronutrients commonly lacking in hay, pasture, or grain-based feeding programs.

Once the diet is balanced, targeted supplements can be added depending on the horse’s specific needs. For example, Visceral+ is commonly used to support gastric and hindgut health in horses experiencing training stress or digestive challenges, while w-3 Oil provides DHA-rich omega-3 fatty acids that support joint comfort, skin and coat quality, and metabolic health. Magnesium Oxide may be added when additional magnesium intake is needed to support normal nerve function and muscle relaxation.

Because these supplements serve different nutritional purposes—vitamin and mineral balance, digestive support, fatty acid supplementation, or specific mineral support—they can typically be used together as part of a comprehensive feeding program. The key is ensuring the overall diet remains balanced and that nutrient intake stays within appropriate ranges.

If you are unsure which products to combine, Mad Barn nutritionists can review your horse’s forage and current feeding program to ensure nutrients are properly balanced. You can submit your horse’s information through a free diet evaluation to receive personalized recommendations.

To choose the best Mad Barn supplements for your horse, start by evaluating their overall diet and identifying any nutritional gaps. Horses have different requirements depending on body weight, workload, and health status. The goal is to determine whether the diet supplies adequate vitamins, minerals, amino acids, and energy.

Many horses benefit from a complete vitamin and mineral supplement to balance thediet. For most horses this is Omneity, which provides micronutrients commonly lacking in hay and pasture. Horses consuming high-iron forage or those with metabolic concerns may be better suited to AminoTrace+, which supplies higher levels of copper and zinc to help restore trace mineral balance.

Once the diet is balanced, additional supplements can be added to address specific needs. Visceral+ supports digestive health, w-3 Oil provides omega-3 fatty acids for joint and skin support, and Three Amigos supplies essential amino acids to support topline and muscle development.

If you are unsure which supplements are appropriate, Mad Barn nutritionists can review your horse’s forage and feeding program through a free diet evaluation.