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Daily Serving

Dog Weight - lbs Inactive Dog Active Dog Working Dog
Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
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Product Overview

Well-rounded support for a healthy weight

SmartGain is the weight gain solution you have been looking for, with several complementary methods of support! This comprehensive formula provides extra calories from rice bran and coconut meal, two healthy sources of additional fat. Also includes the essential amino acids lysine, methionine, and threonine to support lean muscle development and healthy body condition. SmartGain also includes Diamond V® Yeast to help support normal digestion and feed efficiency, plus the herb fenugreek to support a healthy appetite in picky eaters.
  • Provides extra calories from healthy fats including rice bran and coconut meal
  • Also includes amino acids to support lean muscle development

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Key Ingredients


Supplement Facts

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Ingredient Name Amount Per Pound

Ingredient Details


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How the Ingredients Work


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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.

SmartGain® is rated 4.1 out of 5 by 86.
Rated 5 out of 5 by from This stuff works! Hands down, best weight gain supplement out there! I put all three of my horses on this and within a month I saw a noticeable difference. Now after 3 months, they look fantastic! Does not make them hot either. I too dress this on beet pulp.
Date published: 2020-09-01
Rated 5 out of 5 by from Helped my senior horse gain weight It’s been almost 2 months since I started my senior horse on SmartGain and I’m glad I did. He has been putting weight on and is looking good. He can be a slightly picky eater, but he likes this supplement and eats all of it.
Date published: 2020-05-14
Rated 3 out of 5 by from My 29 year old quarter horse I started Maverick on this a month ago. I have not seen any weight gain, but his coat is nice. He is up to date on vaccinations, worming (tested negative on fecal test) Grass hay AM, alfalfa PM and senior feed. I will have to give it a chance to work and see the results in a few months. And every month he gets a chiropractic adjustment and acupuncture, Legend injection and hoof trimmed and regular dental work. Check back with me in a couple months and we will see if he gains!
Date published: 2020-05-12
Rated 3 out of 5 by from Good except... I bought this for my 19yo OTTB and I have seen a bit of a difference in him. My only problem with this was that the scoop that came with the 2month supply was for 94cc instead of 60cc. Obviously I went through a 2 month supply quickly. I found this very disappointing as was the cs response.
Date published: 2020-04-20
Rated 3 out of 5 by from Great ingredients This product does work the only downside I think is that it’s only in powder form. Shadow hates powder and we have to hold his feed bucket to get him to eat it. We do coat his pellets with it but he is not a fan. So if it could be made into a pellet we might have a better consumption. We do see a difference In his overall mass but it’s definitely work getting him to eat it
Date published: 2020-04-16
Rated 3 out of 5 by from Didn’t do much for my 10yo Ottb I have a thoroughbred who I ride often / exercise often and I just don’t think this did the trick for him :/ He’s been on it for a few months now and truthfully I haven’t noticed a difference.. I would say try it and see if it works for you but speaking from my horse & his regimen it just didn’t do enough. I’m hoping to try something else from Smartpak that maybe is for muscle?
Date published: 2020-04-15
Rated 5 out of 5 by from Simple and Awesome! This product has made a world of difference for my senior horse! He has gained weight and is looking healthier than he has in a long time. Thank you SmartGain for the help we needed!
Date published: 2020-04-14
Rated 4 out of 5 by from Very palatable My gelding and mare liked it and am seeing results. Wish it was available as a pellet option for my one fussy eater.
Date published: 2020-04-02
Rated 2 out of 5 by from Palatable but did not help with weight My horse ate this supplement well enough but did not gain any weight on it despite his feed regimen staying otherwise the same. After 2 months I gave up and added rice bran instead, and that did the trick.
Date published: 2019-12-14
Rated 5 out of 5 by from senior weight gainer it seems to help maintain my 33 year old horses weight . I add it it to soaked alfalfa cubes
Date published: 2019-12-11
Rated 5 out of 5 by from My horse gained weight! I bought this product a little over a month ago... I had changed my horse’s diet to a healthy one and he lost weight very quickly. I put him on SmartGain and didn’t notice the weight gain right away. I called smartpak, they explained to me how the product worked and to give it a few more weeks. Two weeks later, I retaped him for his weight and we are up 30 lbs! We still have more to go but thanks to Smartpak, we are heading in the right direction!
Date published: 2019-11-25
Rated 3 out of 5 by from not sure if he is gaining weight yet only been mo Only been on it a month still seeing ribs so I don't know if he is gaining yet. Will prob be another month before I see if it works.
Date published: 2019-10-21
Rated 3 out of 5 by from Easy to use but not seeing much progress This is going on the second month of use. While my horse isn’t losing weight, he hasn’t gained either. Not really seeing any difference. Going to try a little longer to see if there’s any improvement.
Date published: 2019-10-16
Rated 3 out of 5 by from Not Sure Yet I need more time to evaluate least 90 days before I can be sure if this supplement is actually helping my skinny Thoroughbred put on weight. I can't give a real rating for at least 2 more months.
Date published: 2019-10-11
Rated 3 out of 5 by from Tried for 4 months, didn't notice a difference Had my OTTB on the recommended 1 scoop/day for 4 months. I know he was getting it every morning (the strips make it so easy, and his feed bucket was always empty afterward), but after 4 months of not seeing a difference, I took him off it. That was a month ago. If it would have had an impact, it would be worth the $25/month, but it didn't, so it's not (for my horse, at least).
Date published: 2019-09-17
Rated 5 out of 5 by from Awesome stuff! My mare looks amazing! Been using this for two months and she looks completely different. On top of the weight gaining benefits, her coat looks amazing! She is sooo shiny and smooth.
Date published: 2019-08-22
Rated 1 out of 5 by from Doesn't work at all! I've had a horse on this for three months and it hasn't helped him in the least.
Date published: 2019-08-15
Rated 1 out of 5 by from Horse wouldn’t eat I thought it would be hard for her to pick out a powder but she did it. Refused to eat any of it
Date published: 2019-07-25
Rated 1 out of 5 by from Zero results Fed my OTTB for two months and it did absolutely nothing.
Date published: 2019-07-22
Rated 1 out of 5 by from Hasn't Made A Difference I have had my horse on this for over three months now hoping it would help her fill out but haven't noticed any difference at all. Pretty upsetting as I bought two containers of the three month supply because with all the good review I just assumed it would work as well at SmartPak's other supplements. My girl eats it without issue so I have no complaints in that area. But it's too much money spent to not have it work and not be able to return them.
Date published: 2019-07-21
Rated 1 out of 5 by from Doesn’t work for us My senior mare has been on this for 4 months and I’m dropping it from her smartpaks. She hasn’t gained any weight on it, if any then it’s verrryyy little. I was really hoping it would work out well, but unfortunately not. She eats it, but doesn’t really care for the taste.
Date published: 2019-06-10
Rated 1 out of 5 by from Horse won’t eat it Have tried everything and he simply won’t eat it. Has become quite talented at eating everything around it and leaving this product.
Date published: 2019-05-31
Rated 5 out of 5 by from It works... My supposedly "easy keeper" isn't easy and she became quite thin this past winter. Smart Gain did the job of bringing her weight back up!
Date published: 2019-05-29
Rated 5 out of 5 by from Effective This product was fed with SmartDigest, SmartSalt, and dacBloom with dacOil. Mixed with Haystack Special Blend, rolled oats, and Impact Senior feed. Free choice Barley hay. This product works! My horse suffers from digestive issues, and has irregular stools. This product, with the combo above, is helping get things back on track. After two months, he's due for an upgrade, but SmartGain is staying! He's a 25 year old, solid bred paint. He's 15.3HH, ad was 1500lbs in his prime (healthy and fit). He's the hardest keeper. This product brought his BCS from 3/10 to 5/10 and climbing. Looking forward to making him happy and healthy again!
Date published: 2019-04-24
Rated 5 out of 5 by from Amazing product! We received this 12 year old thoroughbred mare and among many other problems lost a lot of weight and was at the very bottom of the herd. The photo shows a 24 day difference on Smartgain- she has a long ways to go yet but just the energy level difference she has in the 24 days is huge. She has a huge heart and we are on our second round of Smartgain with no problems with her being a slightly picky eater. I would highly recommend this product! Well worth it!
Date published: 2019-02-04
Rated 5 out of 5 by from Absolutely fantastic I love that I can always count on smartpak to deliver exactly what they say and exceed my expectations! Smartgain has helped my retired senior gelding tremendously. He has always been a hard keeper, but since he's older now, it's even harder to keep weight on him. He was dropping weight before winter, and refused to eat any weight supplements I added to his feed. I saw this and thought I might as well give it a try. It has helped him gain and maintain a healthy weight for months now, he hasn't looked this good in years. He loves the taste and there is nothing ever left over in his bucket now (he was constantly leaving quite a bit of grain before I added this). I also love the added digestive support. From now on this will be my go to supplement for weight gain!
Date published: 2019-01-18
Rated 5 out of 5 by from Very Happy With Product/ My Standardbred lost weight this past summer. I switched to a different feed and added oil. In October, I was still not happy with his weight. After reading reviews, I started Smart Gain in November. Within 1 month, he started gaining and now at 2 months, his topline looks great and filling in. I recommend this product for an owner to try for their thin horse.
Date published: 2019-01-15
Rated 5 out of 5 by from Best weight supplement out there! After this past summer I noticed that my 36 year old QH gelding wasn’t keeping weight on no matter what I was feeding him. When I went to the Equine Affair I spoke with one of the SmartPak reps and she recommended SmartGain and the SmartPak version of cool calories and even gave me the first month free just to see if he would even eat them because he is so picky. After 4 weeks he looked amazing! SmartPak is a great company and they are always so helpful and willing to do anything for their customers!
Date published: 2019-01-03
Rated 5 out of 5 by from Great products I have been using this product for quite some time and it really keeps my boy sensible (for a better word). I have used most of the other brands of calming products, but none of them works as well as Ultra Calm. Thank you!
Date published: 2018-12-22
Rated 1 out of 5 by from Horse wouldn't eat it. I tried this for a couple of months and ended up throwing out almost all of it out of the bottom of my horse's gran bucket. He just would not eat it.
Date published: 2018-12-19
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