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SmartMuscle® Mass Pellets

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Feeding Chart
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Working Dog - More than two hours of vigorous exercise daily
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Product Overview

Which horses benefit from muscle building support?

Every horse owner wants their partner to have strong, healthy muscles to power performance; whether that means jumping the course, winning the halter class, or hitting the trail. Supplements in this category provide the building blocks needed for lean muscle development and are a great way to ensure your horse your horse has the right nutritional support to make the most of his exercise program.

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Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


Weight Recommended Amount Loading Amount

How the Ingredients Work


Supporting Success

Supercharge Your Supplements

  • Christine McCrea and Tim McQuay on SmartMuscle Mass Equine Supplement
    Team SmartPak Riders, Christine McCrea and Tim McQuay, talk about why they trust the health of their top horses to SmartMuscle Mass ( Want your horse to be powered by SmartSupplements, too? Order today at
  • Simplify with SmartPaks | Consistent, Custom, Convenient
    Simplify your life with SmartPaks: custom-made, pre-measured daily doses of your horse's supplements.


The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

SmartMuscle® Mass Pellets is rated 4.5 out of 5 by 379.
Rated 5 out of 5 by from Packs on the lean muscle This helps immensely when combined with training. I sent my mare to training for a few months and anticipated a little weight loss so I put her on this and the trainer increased her grain ration. She is just getting this and flax. While it must be noted that a significant part of her improvement is due to maturing and training, I really feel as if this supplement helped to support the goals and fill in the gaps that she may have had. My mare is a 3/4 Friesian and 1/4 Percheron. I see in the comments some other friesian and friesian sport horse owners have also had success with this. I have also recommended it to my friend who has an ottb.
Date published: 2024-04-14
Rated 5 out of 5 by from Phenominal product. This product is amazing, my mare transformed from Fat to fab in 6 weeks time. I gave her the suppliment AM and PM and upped her training, and Wellahh!
Date published: 2024-02-25
Rated 5 out of 5 by from Best product ever! Must try this! This product transformed my mare from Fat to Fab in 6 weeks. She's a Friesian Sporthorse .truely phenominal. See Starla's before and after pictures..
Date published: 2024-02-25
Rated 5 out of 5 by from Best product ever! And my Beauty loves the taste. This is the best product ever.I own a Friesian Sporthorse mare. She was on the fatter side, haha, i upped her training, and added the smart pak muscle mass pellets,AM and PM. added smart pak muscle mass pellets AM and PM and in a matter of 6 weeks went from fluffy to Buff. Shes crossed with Friesian,Percheron, and QH,all parts of her are performance horses so she does build muscle rather easily Im thrilled with the results..
Date published: 2024-02-25
Rated 5 out of 5 by from Really works! I've been using this product for over a year and my horses look amazing! I have a 18yr old Morgan, a 10yr old morgan and 5yr old Friesian. They all have excellent muscle tone and never looked better.
Date published: 2024-02-07
Rated 5 out of 5 by from Great Muscle Builder! My barn has used this product on several of our Ranch Horses that needed to put on some weight and muscle. They all work and show hard. All of the Ranch Horses also show in trail, reining, patterns, and halter. We have used it also while they were in training, and it really helped to bring out the weight they needed and muscle tone. SmartMuscle® Mass Pellets encourages optimum definition and muscle mass with providing 10 essential amino acids. I am very impressed with this product. I saw an increase in my horse in the first couple of months, and now after using it for 6 months, he is right where I need him to be. I recommend this product to anyone needing help to build muscle on their horse!
Date published: 2024-01-17
Rated 5 out of 5 by from I swear by this product! I bought this a month ago for my filly in training and am so happy with the results. Muscle recovery is essential for young ones on strict training schedule. She's filling out so nicely. I have peace of mind knowing that my girl is getting exactly what she needs to maintain her health and wellness.
Date published: 2023-10-10
Rated 5 out of 5 by from YES. WORTH IT. DO IT I notice big differences in my mare, my trainer has noticed, and my saddle fitter too. While it won’t make miracles happen, will support big improvements. I have my mare on it for 2 months and then rotate off. And then do it as needed for a month or two. Big improvements.
Date published: 2023-07-14
Rated 5 out of 5 by from Great product to help a horse bulk up! I have had my show horse on this supplement for about 5 months. I started to notice a huge difference on month 2. He has been a hard keeper and a very lean muscle type of horse. This supplement has helped him develop more neck muscle, develop over his top line more, and has helped bulk up his hindquarters. This supplement is definitively worth it!
Date published: 2023-07-05
Rated 5 out of 5 by from Love it! Definitely can tell a difference it has helped a ton with my mares top line and just gaining muscle over all!
Date published: 2023-05-30
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