Does your horse look a little too skinny? Maybe they struggle to pack on the pounds, no matter how much you feed them. Seeing your equine friend underweight can be worrying. You want them to be strong and healthy, but figuring out the best way to help them gain weight feels overwhelming.
Choosing the right weight gainer for your horse can be confusing. There are so many products out there! You might wonder what ingredients actually work or if one is better than another for your specific horse’s needs. It’s tough to know where to start and who to trust.
This post will cut through the confusion. We will break down what makes a good horse weight gainer. You’ll learn what to look for on labels and how to pick a product that will truly help your horse reach a healthy weight.
Ready to help your horse look their best? Let’s dive into the world of horse weight gainers and find the perfect match for your companion.
Top Horse Weight Gainer Recommendations
- HIGH FAT AND CALORIE LEVELS: Manna Pro Senior Weight Accelerator is specially formulated with high fat and calorie content to help senior horses gain and maintain a healthy body condition, supporting energy needs and overall vitality in older horses.
- OMEGA-3 FATTY ACIDS FOR SKIN & COAT: Senior Horse Supplement contains flaxseed-derived Omega-3s to support skin hydration, reduce dryness, and promote a glossy coat. Helps aging horses maintain healthy skin, improved coat condition, and vitality.
- FORMULATED FOR SENIOR HORSES: Tailored nutrition for aging horses with probiotics for digestion, biotin for hoof strength, & controlled starch levels to support metabolic health—delivering balanced energy, immunity, & joint mobility in one great formula.
- ESSENTIAL VITAMINS & ANTIOXIDANTS: Packed with vital vitamins, antioxidants that support a healthy immune system & help protect senior horses from oxidative stress, promoting overall wellness, vitality & resilience to keep them feeling their best.
- HIGHLY PALATABLE & EASY TO FEED: Specially designed for senior horses, this soft, easy-to-chew pellet ensures consistent intake. Fortified with amino acids and antioxidants to support aging joints, muscle maintenance, and overall vitality in older horses.
- 3-IN-1 FORMULA FOR TOTAL SUPPORT: Combines full-fat extruded soybeans, probiotics, and Horse Guard’s vitamin-mineral package into one powerful horse weight gain supplement for healthy weight, coat, and digestion.
- VISIBLE RESULTS FOR HARD KEEPERS: Ideal for senior, rescue, or underweight horses; promotes safe, healthy weight gain while improving energy and topline. The go-to weight builder for horses needing extra care.
- BETTER COAT, BETTER CONFIDENCE: Extruded soy improves coat shine and skin health. Helps your horse look and feel better from the inside out with a high-quality horse feed supplement that makes results visible.
- DIGESTIVE SUPPORT & IMMUNE DEFENSE: Prebiotics and probiotics boost gut health and nutrient absorption, while 1,500 IU of Vitamin E per dose supports a strong immune system – ideal for stressed, recovering, or sensitive horses.
- EASY DOSING, 80 SERVINGS PER BAG: Each 40 lb bag contains approx. 80 servings for a 1,000 lb horse. Scoop included. Trusted since 1978, Horse Guard delivers premium equine supplements with science-backed nutrition.
- HELPS MAINTAIN OPTIMAL WEIGHT AND BODY CONDITION with a nutritionally balanced high-fat formula.
- CONTAINS 50% FAT to provide more calories than equal weights of grain, so less volume needs to be fed.
- PROVIDES EASILY DIGESTIBLE CALORIES WITH NO SUGAR ADDED to safely add calories without the risk of digestive upset.
- HELPS MAINTAIN HEALTHY SKIN AND A GLOSSY COAT with omega-3 fatty acids from flaxseed meal and heat stabilized rice bran.
- DELIVERS A CALMING ENERGY to help horses reach and maintain rigorous performance demands.
- HIGH IN FAT: Contains 99% fat, which is an excellent source of calories and contains more than two times the energy of carbohydrates
- COOL ENERGY: High calorie density of Cool Calories 100 provides cool, focused energy for performance horses
- WEIGHT AND BODY CONDITION: Concentrated source of calories supports healthy weight gain and body condition for underweight horses and hard-keepers and reduces the need to feed more grain
- FATTY ACIDS: Contains fatty acids to support desirable skin and glossy coat condition
- HIGHLY PALATABLE: Easy to feed and highly palatable
- 3-IN-1 FORMULA FOR TOTAL SUPPORT: Combines full-fat extruded soybeans, probiotics, and Horse Guard’s vitamin-mineral package into one powerful horse weight gain supplement for healthy weight, coat, and digestion.
- VISIBLE RESULTS FOR HARD KEEPERS: Ideal for senior, rescue, or underweight horses; promotes safe, healthy weight gain while improving energy and topline. The go-to weight builder for horses needing extra care.
- BETTER COAT, BETTER CONFIDENCE: Extruded soy improves coat shine and skin health. Helps your horse look and feel better from the inside out with a high-quality horse feed supplement that makes results visible.
- DIGESTIVE SUPPORT & IMMUNE DEFENSE: Prebiotics and probiotics boost gut health and nutrient absorption, while 1,500 IU of Vitamin E per dose supports a strong immune system – ideal for stressed, recovering, or sensitive horses.
- EASY DOSING, 20 SERVINGS PER BAG: Each 10 lb bag contains approx. 20 servings for a 1,000 lb horse. Scoop included. Trusted since 1978, Horse Guard delivers premium equine supplements with science-backed nutrition.
- WEIGHT SUPPORT: Establish and maintain a healthy weight while improving muscle tone and energy.
- PALATABLE CRUMBLES: Highly palatable, calorie-rich supplement formulated to help all types of horses maintain a healthy metabolism. Please note these are NOT pellets.
- COMPREHENSIVE SUPPORT: Vegetable fat provides easily digestible calories and increases your horse’s overall energy, and high-quality protein provides essential amino acids necessary for the body to build muscle.
- MADE WITH FIBER: Fiber helps keep the digestive system working smoothly.
- Formulated and manufactured by John Ewing Company in Colorado, USA, where we've been Helping Horses Succeed Since 1948.
- HORSE PRODUCTS BY HORSE PEOPLE: Family-owned and operated, manufactured in small batches at our Centre Hall, Pennsylvania facility using locally sourced ingredients. Developed with real horse-owner experience to ensure quality, consistency, and trustworthiness.
- IDEAL FOR HARD KEEPERS, CALORIE-DENSE HIGH FAT FORMULA: Pennwoods Body Builder 4000 is specially formulated for horses that are thin, hard to keep, or have high energy demands. Its calorie-dense, high-fat formula helps horses safely gain and maintain weight while supporting topline and overall body condition without excess sugar or starch. Perfect for owners seeking a nutritional approach to body conditioning.
- PROMOTES BODY CONDITION AND TOPLINE: This supplement provides a concentrated energy source from fat and quality protein rather than sugar or starch, making it ideal for performance, breeding, or lactating horses. It helps maintain body condition, energy levels, and topline throughout the year, even during intensive training or high-demand seasons.
- SUPPORTS OVERALL PHYSICAL CONDITION: High-quality fat and protein in this formula can help support hoof quality, muscle tone, and a healthy coat when used as part of a balanced diet. By providing calories from fat instead of high-starch grains, it offers a nutrient-dense option to help maintain durable condition in horses that struggle with conventional feeding.
- SAFE, DAILY SUPPLEMENT WITH VERSATILE FEEDING OPTIONS: Easy to incorporate into daily rations, Body Builder 4000 can be added to feed for mature, breeding, or performance horses. Its concentrated energy formula allows you to adjust feeding based on workload and body condition goals, providing a flexible, practical solution for hard keepers.
The Ultimate Buying Guide: Fueling Your Horse for Success
Choosing the right weight gainer for your horse is important. You want your horse to be healthy and strong. This guide helps you pick the best one. We look at what makes a good weight gainer. We also answer common questions.
Key Features to Look For
Good weight gainers have certain things. These features help your horse gain weight safely and effectively.
- High Calorie Density: Look for products packed with energy. This means your horse gets lots of calories in a small serving. More calories help them gain weight faster.
- Digestible Ingredients: The ingredients must be easy for your horse to digest. Poorly digested food does not help them gain weight. Look for ingredients like beet pulp or soybean meal.
- Palatability: Your horse must like the taste! If they won’t eat it, it won’t work. Many good gainers have molasses or apple flavors.
- Added Vitamins and Minerals: Weight gain should be healthy weight, not just fat. Good supplements include vitamins like B vitamins and minerals like zinc. These support overall health.
Important Materials in Horse Weight Gainers
The ingredients matter a lot. Different materials provide different types of energy.
Fats and Oils
Fats are a great source of concentrated calories. Oils like flaxseed oil or rice bran oil add necessary energy without adding too much bulk to the feed. This is important for horses that need extra calories but cannot eat huge amounts of hay or grain.
High-Quality Protein Sources
Protein builds muscle, not just fat. Look for sources like soybean meal, alfalfa meal, or added amino acids. These support lean muscle development, which is healthier for performance horses or those needing to rebuild condition.
Fermentable Fibers
Ingredients like beet pulp are excellent. They ferment in the hindgut, producing volatile fatty acids (VFAs). VFAs are a major energy source for horses. This gentle energy release is very beneficial.
Factors That Improve or Reduce Quality
Not all weight gainers are made equal. Some things make a product better, and some make it worse.
What Improves Quality:
- Third-Party Testing: Products tested by independent labs often have better quality control.
- Simple, Recognizable Ingredients: When you can read and understand most of the ingredient list, that is usually a good sign.
- Low Starch/Sugar Formulas: For some horses, too much sugar causes digestive upset. Low-starch gainers are often higher in fat or fiber, which improves safety.
What Reduces Quality:
- Excessive Fillers: Cheap fillers take up space but offer little nutritional value. These reduce the product’s effectiveness.
- Artificial Additives: Too many artificial colors or unnecessary preservatives can sometimes cause sensitivity in horses.
- Inconsistent Texture: If the powder clumps easily or smells strange, the quality might be inconsistent.
User Experience and Use Cases
Think about why you need the weight gainer. This affects which product works best for you.
Who Needs Weight Gainers?
You might use a weight gainer for several reasons. Older horses often struggle to maintain weight. Performance horses (like jumpers or racehorses) burn a lot of energy. Horses recovering from illness also need extra support to regain lost body condition.
How Users Experience Them:
Most users look for easy mixing. If the product mixes well into their horse’s regular feed, daily feeding becomes simple. Positive user reports often mention visible improvements in coat shine and energy levels within a few weeks. Negative experiences usually involve the horse refusing to eat the fortified feed.
10 Frequently Asked Questions (FAQ) About Horse Weight Gainers
Q: How quickly should I expect to see weight gain?
A: You should see small, steady changes in about four to six weeks if you feed the correct amount consistently.
Q: Can I just feed more grain instead of a supplement?
A: Sometimes, yes. However, specialized gainers provide concentrated calories, often with better fat or fiber, which is easier on the horse’s stomach than adding a large amount of grain.
Q: Are horse weight gainers safe for all ages?
A: Most are safe for adult horses. Always check the label, especially for very young foals or senior horses with specific health needs.
Q: What is the difference between a “weight gainer” and a “balancer”?
A: A weight gainer adds extra calories for mass. A balancer provides necessary vitamins and minerals without adding many extra calories.
Q: Should I mix the gainer with water or feed?
A: Always mix it into your horse’s regular measured ration of concentrate feed. This ensures they eat the full dose.
Q: Will my horse get too hot or “fizzy” on these products?
A: If the gainer is high in fat or fiber, it usually will not cause excitability. If it is very high in non-structural carbohydrates (sugars/starches), it might cause some horses to get overly energetic.
Q: How much should I feed per day?
A: Follow the manufacturer’s instructions based on your horse’s current weight and the desired gain. Start slowly!
Q: Does the quality of the fat source matter?
A: Yes, highly digestible fats like stabilized rice bran oil are generally better absorbed than some cheaper, less processed oils.
Q: Can I use a weight gainer if my horse has ulcers?
A: Many fat/fiber-based gainers are good for ulcer-prone horses because they are easier to digest. Ask your veterinarian first.
Q: What should I do if my horse refuses to eat the supplement?
A: Try mixing it with a small amount of molasses water or apple sauce before adding it to the main feed. If that fails, try a different flavored product.