Worried about your dog being underweight?

A weight gainer supplement is a great way to help your pup put on some pounds. These supplements are packed with nutrients and calories that can help your dog reach their ideal weight.

Not only will a weight gainer help your dog reach their ideal weight, but it can also improve its overall health and vitality. With so many great options available, there’s no reason not to give your dog the best possible chance at a long and healthy life.

We will also include our handy Buyer’s Guide with the most frequently asked questions about Weight Gainers for Dogs and our brilliant answers to them. Then we will reveal our top choice for the best of the best in Weight Gainers for Dogs and why. Let’s get started.

How we choose our WOW products

It can be hard to find the best weight gainer for your dog.

There are a lot of different weight gainers on the market, and it can be tough to figure out which one is right for your pup.

We did all the research for you. After reading thousands of reviews on Amazon, we have compiled a list of the best weight gainers for dogs.  Here are our top three choices.

Best for Muscle Growth

Bully Max High-Performance Super Premium Dog Food

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Bully Max High-Performance Super Premium Dog Food

Best for Muscle Growth

Why We Are “Wow-ed” By It

Looking for a high-performance dog food that is guaranteed to give your furry friend the nutrients they need to thrive? Look no further than Bully Max!

Their super premium dog food is the only 5-star rated formula in its class and is made with 100% all-natural ingredients. Plus, their meat-based formula contains 30% protein and 20% fat to help your dog maintain a healthy weight and energy level.

Best of all, their formula is free of corn, wheat, and soy, so you can rest assured knowing your dog is getting the best possible nutrition.

What “Wow Factors” You Should Know About

Bully Max is the #1 choice of champion breeders for a reason. This high-performance dog food is packed with 30% more protein and 20% more fat than traditional options, making it perfect for dogs who need an extra boost of energy.

The all-natural, meat-based formula is also great tasting and made with clean, sustainable ingredients sourced from the USA.

So if you're looking for high-quality dog food that will keep your pup happy and healthy, look no further than Bully Max!

Best Overall Quality

MVP K9 Supplements Formula Mass Weight Gainer for Dogs

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MVP K9 Supplements Formula Mass Weight Gainer for Dogs

Best Overall Quality

Why We Are “Wow-ed” By It

MVP K9 Formula Mass Weight Gainer For Dogs is the perfect solution for skinny, underweight pups who need to put on some healthy weight fast.

This powerful formula contains 50% healthy fats to help pack on the mass, 28% whey protein for size and muscle support, and 18+ BCCAs for overall support.

Plus, it tastes great so even picky eaters will love it! Results are guaranteed.

What “Wow Factors” You Should Know About

If you're looking for a weight gainer that's packed with muscle-building protein and free of fillers and additives, look no further than MVP K9 Formula Mass Weight Gainer.

This powerful weight gainer contains whey protein and creapure, both of which have been scientifically proven to support muscle growth.

Plus, there's no sugar or salt in Formula Mass Weight Gainer, so you can be sure your dog is getting all the nutrients they need to bulk up.

And if for some reason you're not satisfied with the results you get from using their product, reach out to them for a full refund—they're that confident in their formula.

Best for Pups

NutriCal Vetoquinol Calorie Supplement

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NutriCal Vetoquinol Calorie Supplement

Best for Pups

Why We Are “Wow-ed” By It

If you're looking for a high-calorie supplement that's packed with nutrients, look no further than NutriCal!

This great product is perfect for cats and dogs who need an extra boost of energy, as well as growing puppies and kittens.

With a delicious taste that pets love, NutriCal is also an excellent appetite stimulant. So if your pet is finicky or aging, this is the perfect product to help them maintain their weight.

What “Wow Factors” You Should Know About

There's no need to play hide and seek with your pet's nutrition anymore. Nutri-Cal is a high-calorie pet supplement that contains omega-3 and omega-6 essential fatty acids and multivitamins, making it an ideal way to give your furry friend the nutrients they need.

This palatable, easily-digestible gel is simple to administer and provides accessible calories to support a healthy appetite.

Plus, the added benefits of omega-3 and omega-6 essential fatty acids help keep your pet's coat looking shiny and lustrous.

So go ahead and give your pet the nutritional edge with Nutri-Cal from vetoquinol. Because when it comes to your pet's health, only the best will do!


Our “WOW Factor” Buyer’s Guide

It can be hard to know if you're feeding your dog the right amount of food, and sometimes they might not be getting enough protein or calories to help them gain weight.

A healthy, well-fed dog is a happy dog, and we want to help you make sure your furry friend is getting the best nutrition possible. That's why we've created this guide to Weight Gainers for Dogs.

We'll answer some of the most common questions about weight gainers for dogs, like what they are, how they work, and how much you should give your pup each day. With our help, it will be easy for you to find the perfect weight gainer for your pup and see them start packing on the pounds in no time!

What can I give my dog to increase his weight naturally?

There are several things you can do to help your dog gain weight naturally.

First, make sure he is eating a high-quality diet that is appropriate for his age, breed, and activity level. If he isn't already on quality food, speak with your veterinarian about switching him to one. You may also want to feed him smaller meals more often throughout the day instead of one or two large meals.

In addition to a nutritious diet, you can also give your dog supplements to help him gain weight. For example, adding olive oil or coconut oil to his food can help him pack on the pounds. You can also give him probiotics for gut health and omega-3s for a shiny coat and healthy skin.

Finally, make sure your dog is getting enough exercise. Exercise not only helps maintain a healthy weight, but it also strengthens muscles and bones. A daily walk or play session will help your dog burn calories and build muscle mass.

Do weight gainers for dogs actually work?

Yes, weight gainers for dogs work. They are a great way to ensure your dog is getting the nutrients they need to maintain its weight and health.

Weight gainers for dogs are a powder that you mix with water or wet food. They typically contain a mix of proteins, carbohydrates, fats, minerals, and vitamins that help dogs to gain weight in a healthy way.

Dogs who are underweight or struggling to put on weight can benefit greatly from using a weight gainer supplement.

How long does it take for a dog to gain weight?

It really depends on the dog's metabolism, activity level, and food intake. A lazy dog who eats lots of high-calorie food will obviously gain weight much faster than an active dog who eats a lean diet.

In general, most dogs will start to gain weight within a few months if they are eating more calories than they are burning.

Of course, there are always exceptions to the rule. Some dogs may naturally have a slower metabolism and could take up to a year to start gaining weight. And some dogs (particularly those that are very active) may never gain weight no matter how many calories they consume.

However, if you notice your dog gradually putting on weight over time, it's probably best to consult your veterinarian to make sure everything is on track.

What are high-calorie foods for dogs?

Just like with people, there are high-calorie foods for dogs that can result in weight gain if eaten in large quantities. Some of the most common high-calorie foods for dogs include:

- Processed meats (like bacon, sausage, and hot dogs)

- Cheese

- Milk

- Grapes and raisins

- Nuts (especially macadamia nuts)

- Fatty table scraps or leftovers from a human meal

While these foods can be given to dogs in moderation, they should not make up the majority of their diet. Dogs that eat a lot of high-calorie foods are at risk for obesity, which can lead to health problems like joint pain, diabetes, and heart disease.

If you want to help your dog gain weight, stick to a healthy diet that is high in protein and healthy fats and low in carbohydrates.

You can also give him weight gainer supplements to make sure he's getting all the nutrients he needs.

Most importantly, don't forget to exercise him regularly! A healthy lifestyle is key for any dog, no matter what his weight may be.

How do you know if your dog is underweight?

If you're concerned that your dog may be underweight, there are a few things you can look for.

First, feel along your dog's ribs - you should be able to feel them easily, but they shouldn't be protruding. If they are, that's a sign that your dog may be too thin.

Secondly, take a look at your dog's waistline - it should be clearly visible and not sunken in. Again, if it looks sunken in or excessively skinny, that could indicate that your dog is not getting enough nutrition.

Finally, check with your veterinarian - they will be able to give you the best overview of whether or not your dog is a healthy weight.

What are the side effects of weight gainers for dogs?

Weight gainers are a type of dog food that is high in calories and protein. They are meant to be used as a supplement for dogs who need to gain weight, such as puppies or those recovering from illness.

The most common side effect of weight gainers is diarrhea. Other potential side effects include vomiting, bloating, and gas. If your dog experiences any of these symptoms after eating a weight gainer, discontinue use and consult your veterinarian.

How do you save a malnourished puppy?

If you have found a malnourished puppy, the first thing you should do is take them to a vet to get checked out. Puppies are delicate creatures and need specific care.

The next thing you need to do is start puppy formula if they are not already on it. Then, begin slowly increasing the amount of food they eat every day. It is best to scatter smaller meals throughout the day rather than two large ones.

Watch their stools closely and make sure they are maintaining consistent bowel movements.

Lastly, keep them hydrated by giving them fresh water at all times. If you have any questions or concerns, please reach out to your local animal shelter for help.

How much should I feed my dog?

The amount of food you should feed your dog depends on the size, breed, and age of your dog. As a general rule, you should divide the recommended daily caloric intake by the number of meals you plan to give your dog each day.

For example, if the recommended caloric intake is 1,000 calories per day and you plan to give your dog three meals per day, then you would feed your dog 333 calories per meal.

However, it's important to consult with your veterinarian to determine the specific dietary needs of your pet. Dogs who are inactive or overweight may require fewer calories per day than dogs who are active or lean. And puppies and senior dogs typically need more calories than adult dogs because their metabolisms are slower.

Our Best Advice

Looking for the best weight gainers for dogs? We’ve spent dozens of hours reading thousands of reviews on Amazon from verified customers to find the perfect weight gainer for your dog’s needs.   Here are a few things to keep in mind.

First of all, the basics of healthy weight gain are the same for humans as for dogs.  Healthy weight gain has to do with muscle development, not just more fat.  Healthy weight gain is based on healthy food even though unhealthy food probably would help you (and your dog) gain more weight faster.  The problem is that you may get sick (and die) in the process.  Healthy weight gain is harder and takes longer than simply eating more calories than you burn.  With that in mind, let's get into the specifics.

The best weight gainer for dogs, then, is going to be a high-quality source of healthy fats, protein, and carbs.  Dogs gain weight in much the same way that humans do.  If you eat more calories than you burn, you gain weight.  But the question is not just about the number of calories but also the quality of those calories.  That is why healthy fats, proteins, and healthy carbs are important.

In general, the idea is to feed your dog high-quality dog food and then add a weight gainer supplement powder to it for the extra healthy calories.  Yes, there are dog foods that come with the weight gainer supplement already added.

That kind of weight gain dog food is certainly available but generally expensive and unnecessary.  It also depends on your dog's eating habits and taste and whether they eat three meals per day or more smaller meals.  Dog weight gain supplements as part of your dog's diet can be very effective but there are several things to consider beforehand.

Don't forget that your dog eats good quality food already.  Usually, the best dog foods and dog food brands are very much aware of the different nutritional needs at each stage of your dog's life.  The different stages dog food is focused on are mostly pups, adult dogs, and senior dogs.  There is also a variation depending on the body weight of the dog and even the breed of dog you have.

And when we are talking about high-quality dog food appropriate to your dog's stage of life, we are also suggesting that grain-free dog food is generally best.  Dog food recipes have to take a lot of things into consideration since some dogs are also finicky eaters (especially senior dogs).  Most dogs need to lose weight while others are simply maintaining their weight in a healthy manner.

That brings us to an important point.  Assuming that you are already feeding your dog high-quality dog food appropriate to their stage in life, do you really need a weight gainer supplement?  Pups already have a portion of high-calorie dog food and senior dogs are usually better served with a dog food that promotes weight loss.

The best dog food is usually enough to gain weight for pups, maintain weight for adult dogs and lose weight for senior dogs.  Don't assume that your dog needs to gain weight and needs a weight gainer supplement just because they are in a particular stage of life.

The other thing to keep in mind (which affects your dog's ideal weight) is their metabolism and activity level.  Some dogs with a slow metabolism may need more calories but only gain weight slowly over time.  Other dogs who are very active may be able to eat all day long and never gain weight.  This may also have to do with the type of breed as well.

The best dog foods already have these things in mind when they create their high-quality dog foods for you.  Your dog should already have healthy skin.  Your dog's diet should already be promoting and maintaining its ideal weight.  Feeding your dog fresh food on occasion should already be happening.  You should already be feeding your dog grain-free dog food.  Your dog's diet should already be the best it can be and you should already be exercising your dog regularly as part of a healthy lifestyle.

If you are already doing all of this, and you are still concerned about your dog's weight and you are interested in dog weight gain supplements (or dog food for weight gain), then talk to your veterinarian first.  Really.  This is too important to leave to chance.  You need to know whether your dog is really underweight and, if so, what are the causes.  Does he have worms?  Is he malnourished?  Is he supposed to be at his ideal weight already?  Do you have it on other medications for other health concerns?  What does your vet recommend as the best dog weight gain supplement?  These are all important questions that only your vet can answer.  It's worth the trip.

The best dog foods and the best weight gain supplements will do no good for your dog's weight if they are sick.  Your dog's weight (just like for humans) is an indicator of overall health.  Unexplained weight loss is a sign that something is wrong.  Unexplained dog weight gain is also a signal.  Getting a dog weight gain supplement or dog food for weight gain is the easy part.  The hard part is to make sure that that is what they actually need.  An underweight dog is a sick dog.

Then we can talk about a high-calorie diet for underweight dogs.  We can talk about your dog's food and dog treats and how much weight is the ideal weight for your dog.  Then we can talk about pet nutrition and the body weight of your dog and how to help your pup gain weight or whether you should have some wet food as part of their overall diet.

It isn't hard to talk about the benefits of whey protein isolate for your dog or discuss your dog's weight loss and how to find the right weight gain supplement that promotes weight gain.  We can discuss the benefits of adding more fish oil to your dog's diet and sweet potato or homemade food or whether your dog has food allergies or a sensitive stomach.  All of that is important and has its place but if you get the diagnosis wrong in the first place, you could make it worse, not better.

In general, high-quality food, a combination of dry food (mostly) and wet food, with some fish oil will give your dog the correct combination of protein and fat that they need.  A dog owner who is aware of the differences between stressed dogs, active dogs, and a malnourished dog is in the best position to help your dog gain and maintain its ideal weight.    Why is the reason for your dog's weight loss in the first place?  Losing weight for no good reason isn't a good thing.  Is your dog still a pup or an adult dog?  In other words, should they have achieved their ideal weight by this stage of their life?

Dog owners need to be aware of changes to their dog's appetite (another potential sign that something is wrong).  Do they have inflammatory bowel disease? Are they already on one of those high-calorie diets but without exercising properly?  Are they on a high-protein diet and not getting enough healthy fats?  Do they really need more food because they are one of those malnourished dogs you are trying to rescue or because of your own neglect?

These are the hard questions that need to be asked before worrying about zero trans fats and the right combination of protein and fat and how to help your dog gain weight and whether dry food or wet food is best.  Underweight dogs are sick dogs generally so go to your vet and get the proper diagnosis first and then come back and we can talk about your underweight dog and what kind of weight gain supplement would be best for their particular situation.

With all of that being said, it is now time for us to reveal our top choice for the best of the best in weight gainers for dogs.  Drum roll, please...


Our #1 WOW Choice (and why)

The Best Weight Gainers for YOUR Dog

Our No. #1 WOW Choice for the best Weight Gainers for Dogs is MVP K9 Supplements Formula Mass Weight Gainer for Dogs for the best overall quality.  It is the perfect solution for skinny, underweight pups who need to put on some healthy weight fast.

With 50% healthy fats to help pack on the mass, 28% whey protein for size and muscle support, and 18+ BCCAs for overall support, this formula rocks!  Plus, it tastes great so even picky eaters will love it!

This formula contains whey protein and creapure, both of which have been scientifically proven to support muscle growth. It isn't just about gaining weight but gaining mass with muscle development and that is key for healthy weight gain.

Plus, there's no sugar or salt, fillers, or additives in Formula Mass Weight Gainer, so you can be sure your dog is getting everything they need to bulk up.

It certainly has our vote. We hope you agree! Remember to check prices and availability on Amazon by clicking on the red button below the image. As always, the trick is to get started today!

Best Overall Quality

MVP K9 Supplements Formula Mass Weight Gainer for Dogs

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The 3 Best Weight Gainers for Dogs

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