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The best weight gainer for dogs of 2024

best weight gainer for dogs
Bogdan Stanojevic / Getty

Ensuring your furry friend tips the scales at a healthy weight can sometimes feel like a challenge, especially for those pups that seem to have more ribs than appetite.

Weight gainers for dogs are not just supplements off the shelf; they are tiny lifelines packed with nutrition and care. Think of them as meticulously crafted, research-backed power bars designed to pack on pounds in a tail-waggingly good way. We’re talking quality ingredients, the right calorie counts, and flavors that’ll have your dog doing the dinner dance.

Among the pack leaders, ROGUE PET SCIENCE’s Weight Gainer for Dogs has fetched itself some rave reviews, not just for its nutritional prowess but for being a taste sensation among the canine crowd. Stick around as we sniff out what makes this product a top pick and explore other noteworthy nibbles.

rogue pet science weight gainer for dogs

Rogue Pet Science Weight Gainer for Dogs – Best Overall

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Rogue Pet Science actively supports weight gain, promotes gut health, and aids digestion. This high-calorie weight gainer for dogs turbocharges regular meals, delivering essential nutrients in a delectable topping that dogs love. It doesn’t just pile on the pounds, but also ensures a healthful weight gain, targeting gut health to optimize nutrient absorption and digestion for overall wellbeing.

But it’s not just about the weight gain; this supplement goes a step further, working tirelessly to improve your pet’s coat health. The natural ingredients in this supplement invigorate your pet’s energy levels, reflecting in a lustrous, healthier-looking coat. This tasteful food topper for dogs and cats made the top overall spot on our list.


  • Assists in healthy weight gain
  • Enhances appetite in picky eaters
  • Supports coat health and energy


  • Strong unpleasant smell
pet care weight gainer for dogs

Pet Care Sciences Weight Gainer for Dogs – Best for Energy

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Pet Care Sciences Weight Gainer for Dogs proves to be an exceptional choice for pet owners looking to boost their dog’s weight and energy levels. This weight gain supplement is more than just a protein powder; it’s a comprehensive, high-calorie dog food supplement designed to enhance your dog’s overall health. It actively aids in building muscle in canines, promoting healthy weight gain and offering an energy boost that keeps your pet active and lively throughout the day.

Crafted in the USA with a keen focus on quality, this weight gainer for dogs delivers on its promises, much like a reliable friend who always has your back. This pet weight gainer exudes assurance of your pet’s well-being. Rather than merely stating its benefits, the product effectively delivers them, stimulating your dog’s appetite and providing nutritional support for healthy, active, and robust growth.


  • Helps in weight gain
  • Improves energy levels
  • Enhances appetite


  • Product may cause soft stools
miracle vet weight gainer for dogs

Miracle Vet Weight Gainer for Dogs – Best Value

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With an impressive 2400 calories packed in a 16oz bottle, this potent formula is a great way to kick-start healthy weight gain. But it doesn’t stop there; the weight gainer for dogs multiplies as a multivitamin rich in fish oil and calcium, fortifying your pet’s overall health. This makes it an ideal solution for puppies, adult pets, senior pets, and even pregnant cats or dogs in need of an extra nutrient boost.

Going beyond ordinary weight gainers, Miracle Vet offers incredible value for money. It actively nourishes your pets, replenishing their energy and improving their coat health. The fish oil in the formula dynamically promotes a shiny, healthy coat while the calcium strengthens their bones. Whether you’re nurturing a senior pet, raising a puppy, or caring for a prenatal cat or dog, this weight gainer for dogs steps forward as a top contender.


  • Helps pets gain weight
  • High in vitamins and nutrients
  • Enhances pet’s energy levels


  • Not effective for all pets
mvp k9 weight gainer for dogs

MVP K9 Weight Gainer for Dogs – Best for Muscle Gain

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The MVP K9 Weight Gainer for Dogs is a game-changer for owners seeking to boost their canine’s weight and muscle health. This USA-made product promotes healthy weight gain, targeting skinny, underweight, and fussy eaters across all breeds. The supplement’s ingenious design not only packs on the pounds but also ensures your dog consumes high nutritional value fats, proteins, and carbohydrates, fostering an energetic and athletic pet.

This weight gainer for dogs, in a convenient powder form, effortlessly binds with any dog food, leaving no trace sinking at the bottom of the bowl. It boasts a unique blend of 40% crude fat in each serving, contributing to substantial results within weeks. The product is perfect for adult and puppy dogs, with feeding directions accommodating raw or grain-free diets.


  • Promotes healthy weight gain
  • Enhances muscle development
  • Increases appetite in picky eaters


  • Product is expensive
buddy & lola weight gainer for dogs

Buddy & Lola Dog Weight Gainer Supplement – Best for Aging Dogs

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Meet Buddy & Lola’s Weight Gainer for Dogs, your canine companion’s perfect solution to healthy weight gain. This premium dog supplement builds up your dog’s muscle mass, transforming any pup into a powerhouse. Suitable for all breeds, it doesn’t discriminate and delivers high-calorie nutrition to both small and large dogs alike.

This carefully crafted weight gainer for dogs increases weight safely and effectively. It tops up your dog’s regular food, ensuring they receive the necessary nutrients for proper growth and development. Made in the USA, this weight gain supplement assists older dogs experiencing weight loss due to aging, reviving their strength and vitality. This product doesn’t just promise weight gain; it energizes your dog and encourages it to live its best life.


  • Promotes significant weight gain
  • Enhances dog’s appetite
  • Improves overall health & energy


  • Might cause diarrhea in some dogs
best weight gainer for dogs
Ulf Wittrock / Getty

Best Weight Gainer for Dogs Buying Guide

Ingredient Quality

Choosing a weight gainer for dogs with high-quality ingredients is crucial. Look for a product that supplies calories, protein, vital vitamins, and minerals. It should be real food-based and devoid of artificial additives, preservatives, or fillers. Avoid products with anonymous meat ingredients or low-quality grains. Remember, the ultimate goal is to promote healthy weight gain, not just any weight gain.

Protein Content

Take into account the protein content in the weight gainer. Dogs are primarily carnivorous and need a substantial amount of protein to develop and maintain strong muscles. High-quality protein sources such as real meat or fish should be among the top ingredients. The protein level should not be less than 30%, as this is what would give your dog the needed energy to gain weight healthily.


A weight gainer for dogs can only work its magic if your pet can easily digest it. Ensure the product is crafted to promote smooth digestion and optimal nutrient absorption. Look for prebiotics and probiotics in the ingredient list, as they support a healthy gut microbiome. Additionally, grain-free options can be more digestible for dogs with sensitive stomachs or allergies.


Even the most nutritious weight gainer is useless if your dog won’t eat it. Prioritize products known for their great taste. Whether your dog prefers chicken, beef, or fish-flavored weight gainers, ensure the taste will invite your dog to eat more. Reviews from other pet owners can provide valuable insight into whether a product is well-liked by dogs.

Feeding Instructions

Choosing a weight gainer for dogs with clear and straightforward feeding instructions is essential. The guidelines should indicate how much supplement to give based on your dog’s current and target weight. It’s essential to follow these instructions to prevent overfeeding, which can lead to obesity and other health problems.

Brand Reputation

Buy from a reputable brand with a proven track record in pet nutrition. An established brand will likely have conducted extensive research and testing on their products and responsibly sourced their ingredients. Check for positive reviews and veterinarian endorsements. Remember, your dog’s health and well-being are on the line.


Selecting the best weight gainer for dogs doesn’t have to be daunting. By keeping these factors in mind, you can find a product that will help your pup reach a healthy weight while also improving their overall health. Remember, every dog is unique, and what works for one might not work for another. Always consult your vet before starting your dog on a weight gainer or any new supplement.

Common Questions About Weight Gainer for Dogs

What is a ‘Weight Gainer for Dogs’?

A ‘Weight Gainer for Dogs’ is a dietary supplement designed to help dogs put on healthy weight. It usually contains a high level of protein, vitamins, and minerals to support muscular development and overall health.

Why might my dog need a weight gainer?

Dogs may need a weight gainer for a variety of reasons such as recovering from illness or surgery, high activity levels, or if they are underweight and struggling to put on weight even with a balanced diet.

How do I use the ‘Weight Gainer for Dogs’?

The ‘Weight Gainer for Dogs’ should be used as per the instructions given on the product label. It’s typically mixed into your dog’s regular food, but the exact amount may vary based on your dog’s weight and health needs.

Is the ‘Weight Gainer for Dogs’ safe for all breeds?

Generally, weight gainers are designed to be safe for all dog breeds. However, it’s always best to consult with a vet prior to starting any new supplement regimen, as some dogs may have specific dietary needs or restrictions.

Will the ‘Weight Gainer for Dogs’ cause any side effects?

Most dogs tolerate weight gainers well, but as with any dietary change, there can be minor side effects such as digestive upset. If your dog shows any signs of allergic reaction or severe distress, stop using the product and consult with a vet immediately.

How long will it take to see results after using the ‘Weight Gainer for Dogs’?

The time it takes to see weight gain results can vary among dogs. Factors such as the dog’s metabolic rate, overall health, and consistency of use will determine how quickly you’ll see changes.

How can I maintain the weight gain achieved by my dog?

Maintaining weight gain requires a balanced diet and regular exercise. The weight gainer should not replace your dog’s regular meals, but supplement them. Continue providing a nutritious diet to your dog even after desired weight is achieved.

Can I use ‘Weight Gainer for Dogs’ for my puppy?

Typically, weight gainers can be used for puppies, but it’s always best to consult with a vet first. Puppies have different nutritional needs than adult dogs, and excessive weight gain can cause health issues in the long run.

Can I use ‘Weight Gainer for Dogs’ if my dog has certain health conditions?

If your dog has a health condition or is on medication, you should consult with a vet before using a weight gainer. Some ingredients may interfere with certain medications or exacerbate certain health conditions.

Editors' Recommendations

Anri Ichimura
Anri, a lifestyle journalist and avid traveler, loves outdoor workouts, scuba-diving, and her dog.
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