MYOS Feline Muscle Formula Powder Cat Supplement, 180-g

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At a Glance

  • Vitamins & Minerals
  • Made in USA
  • All Lifestages
$29.99 First Time Autoship Price
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$49.99 Chewy Price
($0.28 /g)
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About This Item

Details

  • Proudly made in the USA.
  • Supplement contains a single, all-natural ingredient sourced from chicken eggs.
  • Formulated to help your cat build muscle while slowing down muscle loss.
  • May also support the health of your kitty’s skin, coat, eyes, bones and cognition.
  • Your feline friend will think this paw-some powder is a delicious treat!

Ingredient Information

Instructions

Frequently bought together

Questions & Answers

2 Customer Questions

How much phosphorous is in this product?

Answer by Chewy • May 30, 2023
This supplement contains 8 mg of Phosphorus per each 1 gram serving.

Does this product come with a scoop, and how large is the scoop?

Answer by Chewy • Jun 18, 2025
A scoop is included and it is 1/4 tsp.
Reviews
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4.3
Rated 4.3 out of 5 stars
73 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

87% Positive

Form and Administration

85% Positive

Ingredients

77% Positive

Nutritional Value

84% Positive

27 Customer Reviews

Rated 1 out of 5 stars
By Carla on Oct 12, 2025

Do not recommend for older cats with CKD

I gave this to my cat who was losing muscle and weight. He did not like the taste and would not eat it. I mixed this stuff in with his favorite food and he ate it

I gave this to my cat who was losing muscle and weight. He did not like the taste and would not eat it. I mixed this stuff in with his favorite food and he ate it the second time. A couple days later he threw up so we took him to the vet -- his kidney levels had gotten TERRIBLE and we had to say goodbye just a few days later. I'm not blaming this product, but I don't know why else his kidney values got worse practically overnight. Could have been any other factor(s) but this is literally the only new thing that we introduced into his diet. Anyway, I don't recommend it. Don't risk it.

Rated 5 out of 5 stars
By Amber on Oct 6, 2025

Already Showing a Big Difference

I've been using this product for two weeks and I've already noticed my cat filling in a bit more as far as his muscles/weight. I've been slightly concerned about

I've been using this product for two weeks and I've already noticed my cat filling in a bit more as far as his muscles/weight. I've been slightly concerned about my cat's natural muscle loss, so I figured this wouldn't hurt to try and the reviews have been fairly good despite the occasional cat rejecting it for whatever reason (but hey, that's a cat for ya). I've been mixing a scoop of this with his wet food and he seems to enjoy it.

Rated 5 out of 5 stars
By Armene on Oct 17, 2025

Excellent Product

This is something my cat loves. She will not eat her food in the morning until I sprinkle the Myos on her food. It helps elderly cats maintain their muscle mass

This is something my cat loves. She will not eat her food in the morning until I sprinkle the Myos on her food. It helps elderly cats maintain their muscle mass

Rated 1 out of 5 stars
By Cleve on Nov 5, 2025

Cat does not like it!

Charlie does not like the product even when mixed with food. Very disappointed in this product which I thought would help him!

Charlie does not like the product even when mixed with food. Very disappointed in this product which I thought would help him!

Rated 4 out of 5 stars
By Linda on Oct 27, 2025

Myos

My senior cat doesn’t seem to notice the flavor when I mix Myos in his canned food, which is great.

My senior cat doesn’t seem to notice the flavor when I mix Myos in his canned food, which is great.

Rated 4 out of 5 stars
By NICOLE on Jun 28, 2025

Good product, but my cat doesn’t like it

My cat was eating it when stirred into his wet food, but then he stopped. I’m not sure if he didn’t like the texture or if there’s a taste to it. I’m sure it would

My cat was eating it when stirred into his wet food, but then he stopped. I’m not sure if he didn’t like the texture or if there’s a taste to it. I’m sure it would be a good product if he would continue to eat it

Rated 5 out of 5 stars
By Lara on Jul 22, 2025

Helping my little old man

MYOS does appear to be helping my little 18 year old cat. He has trouble keeping weight on, but his muscles have made a little comeback using MYOS.

MYOS does appear to be helping my little 18 year old cat. He has trouble keeping weight on, but his muscles have made a little comeback using MYOS.

Rated 1 out of 5 stars
By Sharon on Jun 26, 2025

Nauseating

I thought this would help my aging cats (14 yrs and 16 1/2 yrs), both experienced vomiting. I reduced the amount but it still made them sick.

I thought this would help my aging cats (14 yrs and 16 1/2 yrs), both experienced vomiting. I reduced the amount but it still made them sick.

Rated 5 out of 5 stars
By Kathleen on Mar 24, 2025

Supplement for older cats

Purchased this product for two older cats who are losing muscle mass due to older age inactivity. One cat has digestive issues as well. This product apparently tastes

Purchased this product for two older cats who are losing muscle mass due to older age inactivity. One cat has digestive issues as well. This product apparently tastes great and they seem to be building some muscle mass even early in use. One cat actually jumped up on the cat tower for the first time in a while.

Rated 5 out of 5 stars
By Alexia on May 27, 2025

My cat's girth

My 13 yr old cat is beginning to show bones on his back. I started sprinkling the powder on his food and his bones were less visible

My 13 yr old cat is beginning to show bones on his back. I started sprinkling the powder on his food and his bones were less visible