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Vapco (#10065)


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Feeding Chart

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

Concentrated natural muscle developer

Fat-Cat is a concentrated natural muscle developer with amino acids to support weight gain, coat health, and energy levels. Fat-Cat is a great way to supply muscles with protein building blocks and beneficial vitamins and minerals.
  • Combination of high-quality proteins & essential amino acids for muscle development
  • Includes enzymes to help aid in digestion

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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

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    We take the guesswork out of serving sizes, ensuring your horse gets the right amount, every time. SmartPaks have airtight seals to ensure that your horse always has the freshest supplements available. Your horse is unique and his supplements should be too. Choose from over 230 supplements to get everything he needs, nothing he doesn't. We print your horse's name on every Pak so there are no mix-ups, making feeding time fast, accurate and easy! Unlike most buckets, SmartPaks are made from recycled plastic and can be recycled again! We'll send your SmartPaks on time so you never run out, with total flexibility and no commitment. Plus all SmartPaks over $40 receive free ground shipping.


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.

Fat-Cat is rated 4.6 out of 5 by 194.
Rated 5 out of 5 by from Very Happy with this! It’s a long story, but I inherited two geldings, one 12 y/o and one 24 y/o. I couldn’t personally keep them, so they went to somebody. She ended up starving them both, so I made haste to move them. I’ve been feeding this to my senior consistently for 2 weeks and he’s already filled out a good bit. Very happy with this product.
Date published: 2022-12-21
Rated 5 out of 5 by from Great product! Great product and I feel its really working but my horse likes to leave it at the bottom of his feed dish, so I'm switching to something I won't have to babysit for him to eat. Otherwise I feel its great and it was working!
Date published: 2021-07-13
Rated 5 out of 5 by from Great for picky hard to keep thoroughbred! I have an older thoroughbred who is super hard to keep weight on! We started this after finding grains and amounts that seem to work for him. So far we are two months in - he no longer dropping weight, he happily eats it (its pretty sweet - have cherry/almond flavoring...yes I tried it...its not bad!). So far I haven't seen any energy spikes to be concerned with (I know some people have mentioned it) - but TBD once the ring de-ices and we start riding more!
Date published: 2021-02-23
Rated 5 out of 5 by from Actually works I have an older Arabian stallion and an even OLDER Arabian gelding. After last winter they had both lost a lot of weight. Had their teeth floated again, bumped up their feed. They've always had free access to high quality grass hay and they have a pretty good pasture. I added the Fat Cat because they just weren't putting on weight. It took a couple of months but they are both back in really good shape. Much easier to feed than top dressing with oil!
Date published: 2020-09-21
Rated 4 out of 5 by from Slow, but obvious weight gain My OTTB has been on Fat Cat for a little over a month now. I have started noticing an increase in his weight and the appearance of his coat in this last 2 weeks. He is getting noticeably shiny and healthier looking!
Date published: 2020-09-02
Rated 5 out of 5 by from Fat-Cat works well Been feeding 2 months. This is the second time I've used Fat-Cat for a horse in need of weight and muscle. Feeding twice a day (scoops divided into two feedings) with Nutrena Triumph textured 14% protein. Free feed brome hay. Not currently in training though will start soon. Will be adjusting portions soon.
Date published: 2020-09-02
Rated 5 out of 5 by from works great This has always worked for me, been using it for 25 years.
Date published: 2020-07-20
Rated 5 out of 5 by from Older OTTB with significant improvement! My 16yo OTTB gelding has been on this product for two months. I purchased him about 10 months ago and his topline was non-existent. He had prominent withers, overall lack of muscle, and a slight swayback. I changed his feed to a high-fat formula, increased his hay rations and added alfalfa in addition to conditioning him and working on his topline. He was also started on Devil's Claw. He began to build muscle slowly but seemed to plataue after 8 months. I purchased Fat-Cat because it is affordable and also benefits his gut, coat, and hooves. After 2 months on the product (2 scoops once a day) with no other changes in his diet or routine I am seeing noticable results. His topline looks siginificantly better and his coat is slick, shiny and dappled. His hindquarters are now round instead of sloped and he no longer has pockets on either side of his withers. This product has been great for my boy and I intend to keep him on it for maintenance.
Date published: 2020-07-11
Rated 3 out of 5 by from Haven't Seen Results My gelding has EMND and lost a lot of weight. I've been giving him Fat Cat 2x a day, along with Leg Up muscle pellets, vitamin E & selenium, 20lbs of alfalfa hay, 2 scoops of alfalfa pellets, and 6lbs of Dynasport. He is gaining weight very slowly and I couldn't say that adding the Fat Cat has made much of a difference. He doesn't mind eating it, but he will eat anything I throw in his bowl. I probably won't be continuing after 2 months if I don't see real change.
Date published: 2020-01-14
Rated 5 out of 5 by from Palatable, economical, and seeing results already! We decided to try this on a horse that we are having trouble getting topline weight on. He is on a well balanced, fortified diet - just needs topline. Our vet suggested trying a muscle supplement. It feeds out easily - licked it right up. We were leary of new supplements making him "hot" - have noticed no change in his manner. We have been using it for a month now - just one dose per day. We are starting to see more weight on his topline with no other changes to his regular rations, or training schedule.
Date published: 2019-11-30
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