9000+ Five Star Reviews
Every horse deserves a balanced diet.
We're here to help.
Analyze Your Horse's Diet

54,872 horses helped — completely free.


“Mad Barn’s commitment to research-backed ingredients gives me confidence in recommending their products to horse owners.”

Dr. Fran Rowe, DVM
Veterinary Nutritionist

AminoTrace+ 5 kg - Vitamin & Mineral Supplement for Metabolic Horses - Pelleted - Mad Barn Equine
Enhanced Vitamin & Mineral Pellet
From $64.99
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Omneity Pellets - 5 kg - Equine Vitamin and Mineral Supplement - Mad Barn
All-In-One Vitamin & Mineral Pellet
From $45.99
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Omneity Premix - 5 kg - Equine Vitamin and Mineral Supplement - Mad Barn
All-In-One Vitamin & Mineral Powder
From $54.99
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Visceral+ Gut Health Supplement for Horses - 5 kg - Gastric & Hindgut Support - Mad Barn
Advanced Gut Health Supplement
From $89.99
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w-3 Oil for Horses - Omega-3 DHA Supplement - Mad Barn Equine
DHA-Enriched Fat Supplement
From $66.99
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Mad Barn Optimum Probiotic 1 kg - 20 Billion CFUs - Horse Supplement - Mad Barn Equine
High-Potency 5-Strain Probiotic
From $19.99
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Optimum Digestive Health Pellets for Horses - 5 kg - Equine Probiotic & Prebiotic Supplement - Mad Barn
Probiotic & Prebiotic Supplement
From $53.99
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Performance XL Electrolytes - 5 kg - Electrolyte Supplement for Horses - Mad Barn
Balanced Electrolyte Formula
From $28.99
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We Helping Horses
At Mad Barn, our nutritionists, veterinarians, and research scientists share one mission: improving the well-being of all horses. Each purchase you make directly funds our research, and you can count on our team for expert guidance and support.
Dr. Eleanor Kellon, VMD, Veterinary Nutritionist
Dr. Eleanor Kellon, VMD
Veterinary Nutritionist
Dr. Ana Mesa, PhD, Equine Nutritionist
Dr. Ana Mesa, PhD
Equine Nutritionist
Dr. Fran Rowe, DVM, Veterinary Nutritionist
Dr. Fran Rowe, DVM
Veterinary Nutritionist
Dr. Brittany Kerley, PhD, Equine Nutritionist
Dr. Brittany Kerley, PhD
Equine Nutritionist
Dr. Priska Darani, PhD, Director of Research
Dr. Priska Darani, PhD
Director of Research
Linaya Pot, MSc, Equine Nutritionist
Linaya Pot, MSc
Equine Nutritionist
Dr. Emily Gilbert, PhD, Performance Science
Dr. Emily Gilbert, PhD
Performance Science
Elise Lafleur, MSc, Equine Nutritionist
Elise Lafleur, MSc
Equine Nutritionist
Dr. Madison Ricard, DVM, PhD, DAVCP, Equine Nutritionist
Dr. Madison Ricard, DVM
Veterinary Educator
Sophie Stratton, MSc, Equine Nutritionist
Sophie Stratton, MSc
Equine Nutritionist
Dr. Cerah Bowyer, DVM, Veterinary Advisor
Dr. Cerah Bowyer, DVM
Veterinary Advisor
Haley Scofield, MSc, Equine Nutritionist
Haley Scofield, MSc
Equine Nutritionist
Jessica Artman, MSc, Equine Nutritionist
Jessica Artman, MSc
Equine Nutritionist
Scott Cieslar, MSc, Equine Nutritionist
Scott Cieslar, MSc
Equine Nutritionist
Dr. Jennifer Skaggs, DVM, Veterinary Reviewer
Dr. Jennifer Skaggs, DVM
Veterinary Reviewer
Analyze Your Horse's Diet
4.7 Rated Excellent Based on 11,477 Reviews
If I could give 1000 stars, I would not only for the product itself, but the customer service is phenomenal! ... Highly recommend mad Barn!!!
Michelle
Verified Customer
Dear Mad Barn, Your products saved my horse's life... Visceral+ changed my horse, and I am forever thankful for your amazing products.
Courtney Plant
Verified Customer
Love Mad Barn, they have been so helpful with my horses nutritional needs and getting my orders out in a timely fashion. There products are excellent. Highly recommend!!
Cathy Winter
Verified Customer
I've tried a lot of supplements over the years, but nothing has given results this quickly and clearly. I'm honestly blown away - and I'll never go without it again!
Julie Corbett
Verified Customer
My heart horse has been completely renewed by feeding MadBarn exclusively... Thank you to all the MadBarn team for the amazing work you do.
Danielle Williams
Verified Customer
Mad barn we love you! ...I have such peace of mind feeding your products and Bob is looking better than ever! Thank you!
Elyse Hart
Verified Customer
These products worked their magic in less than a month and standing here a year later our pony has never looked better. Great products deliver great results!
Charlotte Villeneuve
Verified Customer
I wouldn't trust any other brand the way I trust Mad Barn. Thank you for helping give my horse the second chance she truly deserves.
Katie Washington
Verified Customer
My horse has improved so much starting them on the products... physically and visually, and they seem to be in a better mood!
Abby
Verified Customer
THANK YOU MADBARN for your support! Your science-based approach to equine nutrition and management is key to our enduring success!
Nancy Zukewich
Verified Customer
I was skeptical about the effectiveness of supplements, but I am so glad to have found Mad Barn and relieved to find a brand that actually works!
Sophia Wallace
Verified Customer
Their staff is very professional, knowledgeable, friendly, and truly care about horses... I highly recommend Mad Barn.
Diane Vandenberghe
Verified Customer
I had given up hope, and then, I found Mad Barn... He looks like a completely different horse and I know he feels like one too.
Logan Radcliff
Verified Customer

Find the Right Product for Your Horse
Vitamins & Minerals for Horses
Vitamins & Minerals
Joint Supplements for Horses
Joint Health
Gut Supplements for Horses
Gut Health
Hoof Supplements for Horses
Hoof Health
Skin & Coat Supplements for Horses
Skin & Coat
Metabolic Health Supplements for Horses
Metabolic Health
Mood & Behavior Supplements for Horses
Mood & Behavior
Performance Supplements for Horses
Performance
Topline & Muscle Supplements for Horses
Topline & Muscles
Respiratory Health Supplements for Horses
Respiratory Health
Weight Gain Supplements for Horses
Weight Gain
Immune Supplements for Horses
Immune System
Trusted by Top Athletes
Karl Slezak, Olympic Athlete, Pan Am Gold Medalist
Karl Slezak, Olympic Athlete, Pan Am Gold Medalist

"Mad Barn has been incredibly influential in structuring, balancing, and optimizing the diets of all my horses."

Sean Jobin, International Grand Prix Rider
Sean Jobin, International Grand Prix Rider

"Throughout the whole year our horses have been staying in remarkable shape. ...I've noticed a big improvement this year."

Megan Shea, Grand Prix Dressage Rider
Megan Shea, Grand Prix Dressage Rider

"I definitely lean on Mad Barn to ensure all of the horses at my facility are getting everything they need..."

Mike Winter, Olympic Athlete, Pan Am Gold Medalist
Mike Winter, Olympic Athlete, Pan Am Gold Medalist

"Mad Barn has provided knowledge and insight into our horses' nutrition and health management, ensuring we aren't missing anything."

Lindsay Traisnel, Pan Am Gold Medalist
Lindsay Traisnel, Pan Am Gold Medalist

"Mad Barn's experts are so effective at explaining the science behind it so we know our horses are getting everything they need..."


Equine Nutritional Requirements Check Your Horse's Diet

Mad Barn's Equine Nutrition Calculator helps you identify nutritional deficiencies in your horse's diet and formulate a feeding program to better meet their needs.

Magnesium Oxide - Horse Supplement - Muscle and Mood Support - Mad Barn Equine
Muscles & Nerve Support
From $7.99
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Spirulina - Horse Supplement - Allergies & Respiratory Support - Mad Barn Equine Nutrition
Immune & Respiratory Support
From $44.99
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Zinc Copper - Horse Supplement - Mad Barn Equine Nutrition
Organic Trace Mineral Blend
From $29.99
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MSM for Equine Joint Health - Horse Supplement - Mad Barn
Joint Health Supplement
From $21.99
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Jiaogulan - Horse Supplement - Hoof Health & Soundness - Mad Barn Equine
Circulation & Respiratory Support
From $49.99
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Three Amigos - Amino Acid Supplement - Equine Supplement - Mad Barn
Essential Amino Acid Blend
From $39.99
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Chasteberry Herb - Horse Supplement - Hormone and Mood - Mad Barn Equine
Mood & Hormone Support
From $37.99
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Natural Vitamin E - Horse Supplement - Mad Barn
Pure Natural Vitamin E Powder
From $74.99
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Biotin Powder - Horse Supplement - Hoof & Coat Quality - Mad Barn Equine
Hoof, Skin & Coat Support
From $44.99
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Intro to Equine Nutrition
Mad Barn Academy
Gain a deeper understanding of your horse's nutrition needs. This free introductory course provides a foundation for horse owners to learn how to balance your horse's diet.
Enroll Now for Free
Introduction to Equine Nutrition Course - Mad Barn Academy

Latest Articles

Frequently Asked Questions

Mad Barn products are formulated with research-backed ingredients and designed to support a balanced diet for all horses. Each ingredient is chosen for its effectiveness, with no unnecessary fillers or artificial additives. Revenue from product sales funds our research program to improve equine nutrition, health, performance and welfare.

Your horse's diet should begin with a balanced foundation to prevent vitamin and mineral deficiencies. If your horse isn't on a vitamin and mineral supplement, start with Omneity® or AminoTrace+. Beyond that, the right supplement depends on your horse's unique needs. Submit your horse's diet for analysis or book a free phone consultation with our nutritionists for personalized recommendations.

It's free to talk to our qualified equine nutritionists and veterinarians! Our nutritionists can help you design a diet plan personalized to your horse's specific needs. Simply submit your horse's diet online for analysis or book a free phone consultation to receive personalized recommendations.

Yes, Mad Barn products are competition-safe based on the 2025 FEI Prohibited Substances List. Because regulations can differ by discipline, national federation, and country, verify the current rules that govern your specific event before use.

Results vary depending on your horse's needs and the specific product used. Many owners report noticeable improvements — such as better coat condition, hoof growth, and overall wellness — within 4 to 6 weeks of consistent use.

Absolutely. Our products are designed to work synergistically, with balanced nutrient profiles that avoid over-supplementation. You can customize your horse's diet with different Mad Barn products based on their individual needs.

We're committed to providing your horse with the best nutrition at exceptional value. Our nutritionists can help you create a feeding program that fits your budget, and many clients who receive a nutrition evaluation find they can simplify their program, remove redundant supplements, and cut costs.

All of our nutritional supplements are available on an autoship subscription. Enjoy a 5% discount when you subscribe, and you can change or cancel your subscription at any time.

Mad Barn ships across Canada and the continental United States. We provide fast, free shipping on all orders over $40. You can also find our product in select retail stores throughout North America.

Our supplements are manufactured in Kitchener, Ontario, Canada in an equine-only facility that adheres to strict quality control standards to ensure product safety and consistency.