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Dog Muscle Builder

Dog Muscle Builder

Fifth & Fido

12 total reviews

Regular price $29.99 USD
Regular price $42.39 USD Sale price $29.99 USD
Sale Sold out

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product description

As they age, our dogs face the challenges of muscle decline just like us. With our formula, not only will your pet regain lost muscle, but they’ll also enjoy improved mobility. More strength means longer walks, more play, and a visibly happier dog.

  • Designed by Vets
  • clinically studied ingredients
  • Made in the USA
  • Satisfaction Guarantee
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proven ingredients
allergen free
designed by vets
made in the usa
proven ingredients
designed by vets
proven ingredients
allergen free
designed by vets
made in the usa
proven ingredients
designed by vets

Look who barked up our tree!

"really recommend it for your senior pups!"

Maria G. Verified Buyer

"This protein powder ticks all the boxes: delicious, natural ingredients, and noticeable results."

Leslie D. Verified Buyer

"The formula is top-notch"

Diego M. Verified Buyer

"they have a good mix of the vitamins all older dogs should be getting!"

Cole M. Verified Buyer


Why do pet parents love Fifth & Fido?

Fifth & Fido is vet-developed to give you peace of mind. Our formulas are packed with clinically studied ingredients + flavor that even you would envy.

What makes our products unique?

Quality you can trust, from a brand that partners with the best in the industry. We use the best ingredients, ensuring your bestie enjoys unparalleled nutrition

How did we get our start?

Like you, we consider our pets to be part of the family. Unsatisfied with what was out there, we set out to create products that make pampering your pet both nutritious and delicious

Customer Reviews
4.9 Based on 12 Reviews
5 ★
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Amazing product

This powder is super convenient – just a sprinkle on his dry food, and he's all over it. The pork flavor seems to be a hit!

Cole M.

My dogs seem to enjoy taking these vitamins!

I have to large breed dogs that are getting up there in age. A husky-lab mix thats 12 and a Chesapeake Bay retriever thats 11. Being larger bread and active dogs, their joints are holding up as well as they were a few years ago, but they still love taking hikes and playing. So I try anything possible to buy some more time for them.. The have been taking these for a few days and seem to be enjoying them. Its hard to tell how affective they have been yet, but so far I am not seeing any issues with them! they have a good mix of the vitamins all older dogs should be getting!

Jim L.

Paws and Gains – The Scoop on Canine Muscle Boost Powder!

My German Shepherd's appetite for these is a good sign. She seems to be getting stronger, and the flavor seems good. Fingers crossed


My dogs love it!

Well, my two dogs definitely approve! I have been putting a couple scoops on their evening meals and they are both licking the bowls clean to get any powder that may have been left behind. They both really seem to get excited now when they see me grab the jar of powder.I have only been using it for about 4 days now, so it’s too soon to say if I notice any difference. Time will tell!But I can say both dogs really seem to love the taste. I think they view it as a treat.

Rick A.

Useful Dog Supplement

Got this for my older dog to keep weight on her when she doesn't want too much kibble. Loves the flavor, eats it right up.