'Fifth and Fido' logo in dark blue text.
'fifth & fido logo in dark blue text'

Best Sellers

Recommendations

Key Benefits

Reviews

Dog next to containers of dog supplements with a hand holding a scoop of powder.

Trustworthy supplements for your trusty companion

Functional pet supplements that combine leading science and great taste.

LOVED BY 5,240+ happy doggos

shop SUPPLEMENTS

A dog eagerly looking at pet supplements next to it.

90-Day GUARANTEE

Vet-Made & ENDORSED

USA-Made WITH LOVE

Shop Bestsellers

5.2K+ Customers

90 day guarantee

Fifth & Fido Turkey Tail+ dog supplement container with bacon flavor and probiotics.

bestseller

Turkey Tail Mushroom

Shrinks fatty bumps

$39.99

bestseller

Dog Muscle Builder

PREVENT MUSCLE LOSS

$46.80
$35.10

bestseller

Prenatal Vitamin

PREGnENCY SUPPORT

$29.99

bestseller

Dog Cough Remedy

cough soother

$29.99
Simple blue wave border design on a white background.
A pink paw print icon on a black background.
A joyful dog jumps with ears flapping.

If Your Pup Isn't Happy, We'll Fully Refund You

90 Day MONEY-BACK GUARANTEE

Wavy blue line on a white background.

Recommended By

Dog Experts and Veterinarian

Collage of dogs with supplements and a child holding a pet product.

KEY BENEFITS

Why Fifth & Fido?

Designed by vets

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.

Irresistible taste

Dogs can’t resist our products’ crave-worthy flavor, that’s proven to be irresistible — even for the pickiest of eaters, making it easy to incorporate into their daily feeding routines.

Natural, Complete Wellness

Our healthy supplements offer a range of support, including immunity and digestion, muscle building, kidney & liver support, and more.

Made in the USA

Even picky dogs love our natural supplements. Made in the USA with top-quality ingredients you can trust and a taste they’ll enjoy.

Collage featuring dogs and a child with pet supplements and medicines from 'f&f' brand.

What Pet Parents are Saying

A pink animal paw print on a black background.

My Dogs Love This Stuff

"I gave my dogs other mushroom supplements in the past. One dog BARELY touched the old one. This one, she gobbles it right up. My other dog gets SO excited when I open the bottle. I'm assuming she gets excited by the smell because of the bacon flavor. But this stuff gets immediately eaten, every bit of powder licked clean off the plate."

Kristy J.

Verified buyer

Purchased:

Dog Cough Remedy

It Works

"It not only worked, but it worked fast! Doggy's lumps are noticeably smaller. In a few weeks."

F G

Verified buyer

Purchased:

Dog Cough Remedy

My Dogs Approve

"I have several senior foster dogs with various conditions, so this is targeted for their ageing issues. My older chocolate lab has more energy since he's been taking this, and as long as he keeps acting like a puppy, I'll keep giving it to him. They seem to approve the flavor."

David S.

Verified buyer

Purchased:

Dog Cough Remedy

Great Product

"Got the job done for my little guy - just needed a drop or two for each meal."

Roy P.

Verified buyer

It Works

"It not only worked, but it worked fast! Doggy's lumps are noticeably smaller. In a few weeks."

F G

Verified buyer

Purchased:

Turkey Tail

My Little dog loves this!

"Super easy for her to take and we definitely noticed a happier healthier pet."

Brock Q.

Verified buyer
Abstract red and cream wavy lines pattern.
French Bulldog licking its nose with a heart-shaped treat on its ear against a pink background.A simple black wavy line on a white background.

90 day risk-free guarantee

Give Your Dog the Support They Deserve

Trusted by 5,241+ pet parents, Fifth & Fido’s vet-endorsed formulas are here to help your dog live it’s healthiest, happiest life.

SHOP ALL

Loved by 5,240+ happy doggos