10 Best Cat Nutrition Supplements 2025: According to Reviews | Chewy

The 10 Best Cat Nutrition Supplements

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How we created this cat nutrition supplement list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best cat nutrition supplement.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best cat nutrition supplements.

Key cat nutrition supplement considerations

Digestibility

Effectiveness

Ingredient Quality

Nutritional Content

1
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

Rated 4.7 out of 5 stars
966
$17.35Chewy Price
($1.45/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Digestibility

4.4/5
Great

Effectiveness

4.6/5
Excellent

Ingredient Quality

4.6/5
Excellent

Nutritional Content

4.6/5
Excellent

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Casein, Vegetable Oil (With Tocopherols And Ascorbyl Palmitate (Preservatives), Rosemary Extract), Dried Skimmed Milk, Dried Whey Protein Concentrate

Food Flavor

Unflavored

Packaging Type

Can
2
Vetoquinol Nutri-Cal Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube
Vetoquinol Nutri-Cal Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube

Vetoquinol Nutri-Cal Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube

Rated 4.5 out of 5 stars
1,031
$17.99Chewy Price
($4.24/oz)
Promo, Save 20% with code CYBER20

Our ratings

Digestibility

4.3/5
Great

Effectiveness

4.5/5
Great

Ingredient Quality

4.5/5
Great

Nutritional Content

4.4/5
Great

Is this cat nutrition supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Corn Syrup, Soybean Oil, Malt Syrup, Water, Fish Oil

Food Flavor

Unflavored
3
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack

Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack

Rated 4.4 out of 5 stars
753
$6.99Chewy Price
($0.35/fl oz)

Our ratings

Digestibility

4.3/5
Great

Effectiveness

4.4/5
Great

Ingredient Quality

4.4/5
Great

Nutritional Content

4.4/5
Great

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Milk, Water, Nonfat Milk, Malt Extract, Trisodium Phosphate

Health Feature

Sensitive Digestion, Milk Replacer
4
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar

Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar

Rated 4.7 out of 5 stars
218
$10.00Chewy Price
($0.91/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Digestibility

4.7/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredient Quality

4.6/5
Excellent

Nutritional Content

4.8/5
Excellent

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Animal Fat and Vegetable Fat (preserved with BHA and BHT), Dried Whey Protein Concentrate, Dried Whey, Sodium Caseinate, Dicalcium Phosphate

Food Flavor

Unflavored

Packaging Type

Tub
5
Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube
Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube
Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube
Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube
Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube

Tomlyn Nutri-Stat Gel High Calorie Supplement for Cats & Dogs, 4.25-oz tube

Rated 4.3 out of 5 stars
266
$21.49Chewy Price
($5.06/oz)
Promo, Save 20% with code CYBER20

Our ratings

Digestibility

4.4/5
Great

Effectiveness

4.5/5
Great

Ingredient Quality

4.6/5
Excellent

Nutritional Content

4.4/5
Great

Is this cat nutrition supplement right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Corn Syrup, Soybean Oil, Malt Syrup, Cod Liver Oil, Cane Molasses

Food Flavor

Original
6
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can

PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can

Rated 4.7 out of 5 stars
250
$18.10Chewy Price
($1.30/oz)

Our ratings

Digestibility

4.4/5
Great

Effectiveness

4.6/5
Excellent

Ingredient Quality

4.5/5
Great

Nutritional Content

4.4/5
Great

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Dried Meat Solubles, Rice Flour, Dried Skimmed Milk, Dried Whole Milk, Maltodextrins

Food Flavor

Unflavored

Packaging Type

Can
7
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz

Nutri-Vet Powder Milk Supplement for Cats, 12-oz

Rated 4.6 out of 5 stars
87
$27.38Chewy Price
($2.29/oz)
Promo, Limited Time: Save 40% with code WELL40

Our ratings

Digestibility

4.7/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredient Quality

4.7/5
Excellent

Nutritional Content

4.6/5
Excellent

Is this cat nutrition supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Animal & Vegetable Fat (Preserved With Bha And Bht), Dried Whey Protein Concentrate, Dried Whey, Dicalcium Phosphate, L-Arginine

Packaging Type

Tub

Health Feature

Milk Replacer
8
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can

PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can

Rated 4.6 out of 5 stars
212
$17.84Chewy Price
($1.70/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Digestibility

4.2/5
Great

Effectiveness

4.4/5
Great

Ingredient Quality

4.4/5
Great

Nutritional Content

4.3/5
Great

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Dried Skimmed Milk, Soy Protein Isolate, Vegetable Oil (Preserved With Tocopherols), Casein, Animal Fat (Preserved With Bha And Bht)

Food Flavor

Unflavored

Packaging Type

Can
9
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can

PetAg Goat's Milk KMR Kitten Milk Replacer Liquid for Kittens, 11-fl oz can

Rated 4.5 out of 5 stars
63
$13.70Chewy Price
($1.25/fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Digestibility

4.3/5
Great

Effectiveness

4.3/5
Great

Ingredient Quality

4.1/5
Great

Nutritional Content

4.3/5
Great

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Water, dried whole goat milk powder, dried milk protein, vegetable oil (tocopherols and ascorbyl palmitate (preservatives), rosemary extract)

Special Diet

High-Protein

Packaging Type

Can
10
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube
Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube

Tomlyn Nutri-Cal Fish Flavor Gel High Calorie Supplement for Kittens, 4.25-oz tube

Rated 4 out of 5 stars
251
$16.99Chewy Price
($4.00/oz)
Promo, Save 20% with code CYBER20

Our ratings

Digestibility

3.6/5
Good

Effectiveness

4.1/5
Great

Ingredient Quality

4.0/5
Great

Nutritional Content

3.9/5
Good

Is this cat nutrition supplement right for my pet?

Lifestage

Kitten

Top Ingredients

Corn Syrup, Malt Syrup, Soybean Oil, Dicalcium Phosphate (Source of Calcium and Phosphate), Cod Liver Oil

Food Flavor

Seafood & Fish

Packaging Type

Tube