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Best Cat Milk Replacers of 2026

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Janie Foster

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Cat milk replacers are a great option for kittens who are orphaned, abandoned, or rejected by their mother. These products are specially formulated to provide all the necessary nutrients that a kitten needs in their early life stages. They are available in both powder and liquid form and can be easily mixed with water. These replacers contain high levels of protein, fat, and other essential nutrients that mimic the composition of a mother cat's milk. Cat milk replacers are a convenient and effective way to ensure that kittens receive the proper nutrition they need for healthy growth and development.

At a Glance: Our Top Picks

Top 10 Cat Milk Replacers

#TOP 1

Manna Pro Nurse All Multi-Species Milk Replacer

Manna Pro Nurse All Multi-Species Milk Replacer Cover

Manna Pro Nurse All Multi-Species Milk Replacer, Great for Calves, Lambs, Goat Kids, Foals, Baby Pigs, Llamas, Alpaca Crias, Puppies & Kittens, Provides Complete Nutrition, 3.5 lb

The Manna Pro Nurse All Multi-Species Milk Replacer is a convenient and healthy option for feeding your newborn puppies and kittens. This milk replacer is made with real milk protein and features probiotics to support your baby animal's healthy growth and development. The Opti-Gut formula helps control harmful bacteria and promote the growth of good bacteria in the digestive tract. It is also easy to mix and store, and formulated to feed 9 different species of baby animals.

9.8
FTB Score

What We Like

  • Good for kittens and puppies
  • Supports pregnant and nursing animals
  • Helps recovery for sick animals
  • Affordable bulk pricing
  • Easy to mix with food

What We Don't Like

  • Does not mix well with cold water
  • Not intended for human consumption

What Customers Say

"I've been caring for a semi-feral cat colony for years, and this milk powder has been a lifesaver for both kittens and adult cats, especially when they are sick or need extra nutrition. Whether I’m supplementing mama cats or feeding bottle babies, this powder is easy to use, well-accepted, and seems to help them recover faster. Great value for the money compared to smaller store packs, and I trust the quality after two years of use."

"When my American bully puppies needed a nutrition boost, this product worked wonderfully. It's helped them gain healthy weight and I find the value and effectiveness outstanding. I highly recommend it for anyone raising puppies!"

"As a breeder, I've used this milk replacer for multiple litters of puppies and for supporting nursing mothers. It mixes best with warm water and has consistently kept my pups and moms thriving. The price is fair, and I keep coming back for more bags, especially when there's a sale!"

#TOP 2

WHISKAS CATMILK PLUS

WHISKAS CATMILK PLUS Cover

Whiskas Catmilk Plus Drink for Cats and Kittens 24 Count, 6.75 Ounces

Whiskas Catmilk is a protein-rich drink specially formulated for cats and kittens. With 98% reduced lactose, it is easy to digest, making it suitable even for cats with sensitive stomachs. Enriched with essential nutrients like calcium and crude protein, it promotes healthy teeth and bones. The real milk flavor is loved by cats, making it a delightful treat for them. Each pack contains twenty-four 6.75-oz. cartons, ensuring you have an ample supply. Whether you want to provide additional nourishment or simply reward your feline friend, Whiskas Catmilk is a convenient and beneficial choice.

9.7
FTB Score

What We Like

  • Appeals to kittens and sick cats
  • Supports healthy growth
  • Enjoyed by picky eaters
  • Vet-approved results
  • Good for weaning

What We Don't Like

  • Occasional digestive issues
  • Rare batch quality concerns

What Customers Say

"My cats absolutely love this milk, especially my kittens and those who haven't been feeling well. It really helps sick cats regain their appetite quickly. I keep coming back to it because of how much they enjoy it."

"When I started using this for my tiny kittens, they went wild for it! Even though they were separated from their mom too soon, this milk helped them grow healthy and strong—my vet even commented on how well they’re doing."

"I bought this product after reading positive reviews, but unfortunately, my cat experienced vomiting and diarrhea after using it. While every cat is different, I was disappointed that it didn't work for mine."

#TOP 3

PetAg KMR Kitten Milk Replacer Powder

PetAg KMR Kitten Milk Replacer Powder Cover

PetAg KMR Kitten Milk Replacer Powder - 12 oz - Powdered Kitten Formula with Prebiotics, Probiotics & Vitamins for Kittens Newborn to Six Weeks Old - Easy to Digest

PetAg KMR Milk Replacer is a high-quality powdered drink mix designed to provide essential vitamins, minerals, and trace nutrients for kittens that have been orphaned or rejected. It is easy to mix, highly palatable, and easily digestible for kittens. This milk replacer is specifically formulated for newborn kittens up to 6 weeks old, supplying them with the necessary milk proteins and taurine they need for healthy growth. With the inclusion of prebiotics and probiotics, PetAg KMR Milk Replacer supports a healthy digestive system in young kittens. PetAg is a trusted brand that delivers excellent care solutions for both pet owners and animal professionals.

9.5
FTB Score

What We Like

  • Easy to mix
  • Highly nutritious for kittens
  • Saves sick or weak kittens
  • Well-tolerated, no diarrhea
  • Suitable for all ages

What We Don't Like

  • May cause mild constipation
  • Can form clumps when mixing

What Customers Say

"I credit this formula for saving the life of a kitten we found nearly dying in our garage. Following the directions carefully, using distilled water, and using a syringe with a special nipple made all the difference. I can’t recommend it enough for emergencies or fragile kittens."

"After adopting a very sick kitten, I used this formula as recommended by our emergency vet. The kitten drank it eagerly, had no digestive problems, and recovered quickly. No other brand worked as well for us, and even our older cats enjoyed the leftovers. This is now my go-to formula for kittens."

"As a breeder with frequent litters, I use this product to supplement large groups of kittens when the mother becomes weak. With KMR, the kittens are more energetic and healthy within days, and adopters have noticed the positive change. It’s a staple in my cattery."

#TOP 4

PetAg KMR Kitten Milk Replacer Powder

  • PetAg
  • 99508
  • 6 Ounce (Pack of 1)
PetAg KMR Kitten Milk Replacer Powder Cover

PetAg KMR Kitten Milk Replacer Powder - 6 oz - Powdered Kitten Formula with Prebiotics, Probiotics & Vitamins for Kittens Newborn to Six Weeks Old - Easy to Digest

PetAg Kitten Milk Replacer is a high-quality formula designed for newborn to six-week-old kittens. This powder formula contains prebiotics and probiotics, which support the immune system and aid in optimal nutrient absorption. With the added digestive enzymes, it helps break down fat, protein, fiber, and carbohydrates, ensuring efficient digestion. Whether you are a pet owner or an animal professional, this supplement powder is an excellent care solution to provide your kittens with the nutrients they need. Simply add it to their daily diet and watch them thrive.

9.5
FTB Score

What We Like

  • High-quality formula
  • Supports immune system
  • Aids in optimal nutrient absorption
#TOP 5

PetAg KMR Kitten Milk Replacer Liquid

PetAg KMR Kitten Milk Replacer Liquid Cover

PetAg KMR Kitten Milk Replacer Liquid - 16 oz - Ready-to-Feed Formula with Vitamins for Kittens - Easy to Digest

The PetAg KMR Kitten Milk is designed to support kittens when their mother’s milk isn’t available. It offers balanced nutrition similar to natural mother’s milk, providing the essential proteins, fats, and carbs your kitten needs to grow strong. This formula also includes added vitamins and minerals to help build your kitten’s immune system and support healthy digestion. Plus, it’s easy to digest thanks to a special fiber blend, making mealtime gentle on your kitten’s tummy. With this milk replacer, you can ensure your kitten gets the nourishment they need for a healthy start.

9.5
FTB Score

What We Like

  • Great nutrition for kittens
  • Kittens love the taste
  • No need to mix powder
  • Helps abandoned kittens thrive
  • Easy to digest

What We Don't Like

  • Higher price than alternatives
  • Occasional packaging issues

What Customers Say

"I started using this formula for my orphaned kittens and noticed a significant improvement in their health. They’re now thriving and full of energy, and I truly believe this is the best formula available for kittens without a mother."

"I’ve been feeding this to four abandoned kittens and, although it’s a bit expensive, it’s worth every penny. All the kittens have gone from being very weak to happy and healthy, and I feel like this formula made all the difference."

"After accidentally ordering the liquid instead of the powder, I found it to be more costly and less economical. While the product itself is good, I think the powder is a better value and lasts longer."

#TOP 6

Pet-Ag KMR Kitten Milk Replacer Powder

Pet-Ag KMR Kitten Milk Replacer Powder Cover

Pet-Ag KMR Kitten Milk Replacer Powder - 12 oz - Powdered Kitten Formula with Prebiotics, Probiotics & Vitamins for Kittens Newborn to Six Weeks Old - Easy to Digest

PetAg KMR Kitten Formula is designed to support kittens from newborn to six weeks old when their mother’s milk is unavailable. It offers nutrition closely matching natural mother’s milk, giving your kitten the right balance of protein, fat, and carbohydrates needed for healthy growth. The formula includes added vitamins, minerals, and beneficial prebiotics and probiotics to help boost your kitten’s immune system and promote smooth digestion. Mixing this formula is simple—just whisk one part powder with two parts warm water, making feeding easy and convenient. This product is gentle on tiny stomachs, helping your kitten absorb nutrients comfortably.

9.4
FTB Score

What We Like

  • Excellent kitten growth support
  • Highly digestible formula
  • No odor in litter box
  • Veterinarian recommended
  • Well tolerated, no bloating

What We Don't Like

  • High price
  • Occasional shipping delays

What Customers Say

"I've tried several kitten formulas, but this one stands out for its amazing digestibility and the fact that my kittens have zero-smell poop. All four of my kittens are gaining weight and absolutely thriving—I credit it all to this formula."

"After bottle-feeding my orphaned kitten with this product, I noticed healthy weight gain and strong development. It was a bit pricey but worth every penny, especially since it's a lifesaver for neonatal kittens without mothers."

"When I switched to this formula on my vet's recommendation, my kittens never experienced bloating or digestive issues. Unlike other brands, this milk is not overly sweet and is very well tolerated. The kittens really blossomed on it."

#TOP 7

Under the Weather Kitten Milk Replacer Powder with Colostrum

  • undertheweatherpet
  • MR COW KITTEN-MNF
Under the Weather Kitten Milk Replacer Powder with Colostrum Cover

Under the Weather Kitten Milk Replacer Powder + Colostrum | Kitten Milk Replacement Formula | Nutrient-Rich Formula with Colostrum for Immune & Digestive Support – 12 oz

The Under the Weather Kitten Milk is designed to closely match a mother cat’s milk, making it a great choice if you have orphaned or underweight kittens. It includes colostrum, which helps support your kitten’s immune system by providing important antibodies early on. The formula is gentle on sensitive stomachs, using easy-to-digest proteins and fats to reduce digestive upset. Whether you’re feeding newborns, pregnant cats, or seniors, this product offers flexible nutrition that can be a full meal or a supplement. This way, you can ensure your cats get the nutrients they need at every stage of life.

9.4
FTB Score

What We Like

  • Easy to mix
  • Puppy and kitten health support
  • Encourages growth and energy
  • Widely recommended
  • Convenient for weaning

What Customers Say

"I purchased this for my 8-week-old runt puppy, and I've seen her really catch up in size and energy with her littermates. This milk has been a game changer for her growth, and I absolutely recommend it for anyone needing to give their puppy a boost."

"This formula is very easy to prepare, and both my puppies and their mother enjoyed it without hesitation. It's been a smooth addition to their routine."

"My kittens were sick, but this product gave them a huge boost in recovery. It's also great for older cats needing immune support. I consider it a must-have for anyone caring for kittens, mother cats, or even seniors."

#TOP 8

Nutri-Vet Milk Replacement For Kittens

Nutri-Vet Milk Replacement For Kittens Cover

Nutri-Vet Milk Replacer For Kittens, Powdered Milk, Kitten Essentials, Cat Care, Veterinarian Recommended Cat Essentials, Whelping Supplies, Nursing Supplies, 12oz

Nutri-Vet Milk Replacement For Kittens is a full meal replacement for newborns that contains essential amounts of protein, fat, and carbohydrates, plus vitamins, minerals, and amino acids that newborn kittens need. It is readily accepted by newborn kittens and produces excellent growth rates and weight gain. Nutri-Vet Milk Replacement also supports a healthy gut with Opti-Gut, a natural recipe, complete with probiotics for cats. Formulated by veterinarians, this product is made in the USA with globally sourced ingredients that meet the highest standards of quality and consistency.

9.4
FTB Score

What We Like

  • Promotes healthy growth
  • Easy to mix
  • Good taste for kittens
  • Helps with weight gain
  • Great value

What We Don't Like

  • Adult cats uninterested
  • Slightly loose stools possible

What Customers Say

"After rescuing a severely undernourished kitten, I was amazed by how quickly she began to thrive on this milk replacer. She doubled in size in just four weeks, and now her coat is shiny, her eyes bright, and her digestion has completely stabilized. Mixing it is simple, and she eagerly laps up every drop—she’ll even miss it when she’s fully weaned! I’m confident this supplement played a huge role in her recovery and overall health."

"This product was a lifesaver when my momma cat couldn't nurse her five kittens. The kittens loved the flavor, and it provided all the nutrition they needed while giving mom a much-needed break. The formula's consistency was just right, but I could easily adjust it as needed, making feedings stress-free for everyone involved. It’s such a relief to have found something that works so well!"

"I used this milk replacement for my senior cat who needed to gain weight, and it made a noticeable difference. Not only did he put on healthy weight, but I also found it to be a great value for the price. No issues with diarrhea, either. I highly recommend it for underweight or recovering cats."

#TOP 9

PetAg Petlac Milk Powder for Kittens

PetAg Petlac Milk Powder for Kittens Cover

Pet-Ag PetLac Powder for Kittens - 10.5 oz - Kitten Milk Replacement Powder for Kittens Newborn to Six Weeks Old - Easy to Digest

The PetAg Petlac Milk Powder is a kitten formula milk replacer that is recommended for orphaned or rejected kittens. It contains essential vitamins, minerals, and amino acids to support proper growth and development. The kitten milk replacement powder is formulated to be easily digestible and is easy to administer. PetAg is a trusted brand that delivers top-quality products for both owners and animal professionals.

9.3
FTB Score

What We Like

  • No diarrhea in sensitive kittens
  • Easy to mix with water
  • Improves weight and coat
  • Well-liked by kittens and adults
  • Good value and quantity

What We Don't Like

  • May clump if not mixed well
  • Occasional mild digestive upset

What Customers Say

"I was really worried about giving my sick rescue kittens something that might upset their stomachs, but this formula mixed easily, smelled fresh, and most importantly, didn’t cause any diarrhea. The kittens are gaining weight and thriving, and they can't get enough of it!"

"When my elderly cat stopped eating, I tried this kitten formula as a last resort. She started drinking it enthusiastically, her fur became soft again, and she’s more energetic and content. It’s given her comfort and quality of life in her final days, and I’m so grateful."

"After losing their mother, my 2-week-old kittens took to this formula immediately, and I noticed no digestive issues at all. They love the taste, and even my adult cats sneak some! For anyone raising orphaned kittens or supplementing young cats, I’d highly recommend it."

#TOP 10

Revival Animal Health Shelter’s Choice Kitten Milk Replacer Powder

Revival Animal Health Shelter’s Choice Kitten Milk Replacer Powder Cover

Revival Animal Health Shelter’s Choice Kitten Milk Replacer Powder, Complete and Balanced Milk Formula for Kittens and Adult Cats, Supports Healthy Growth and Digestion, 1 lb

The Revival Kitten Milk Replacer is perfect for feeding orphaned or shelter-born kittens, giving them the essential nutrition they need to thrive. It comes as an easy-to-mix powder—just add water to quickly prepare a smooth milk formula, saving you time and effort. This replacer is designed to fully support healthy growth and development, so you can feel confident your kitten is getting balanced nourishment. Plus, it helps promote a healthy digestive system, reducing the chance of diarrhea and keeping your kitten comfortable from the very first feeding.

9.3
FTB Score

What We Like

  • Easy mixing and dissolving
  • Supports healthy digestion
  • Improves weight gain
  • Well-formed stool
  • Loved by kittens

What We Don't Like

  • Limited local availability
  • Shipping takes extra day

What Customers Say

"After my foster kittens had persistent diarrhea, I switched to this formula. In just a few days, their digestive issues cleared up and they started growing faster than any other litter I've raised this year. I won’t use anything else now!"

"Our feral momma cat became dangerously thin after giving birth. We started mixing this into her food, and within a week, she looked much healthier and her milk production improved. She enjoys it, and I love that it contains only necessary ingredients."

"This is the only formula my bottle babies will actually drink—they even meow for it! It mixes smooth and keeps their poops healthy. I’m so grateful to have finally found a product they love."

Cat Milk Replacers Comparison Table

#TOP 1 Manna Pro Nurse All Multi-Species Milk Replacer Cover

Manna Pro Nurse All Multi-Species Milk Replacer

#TOP 2 WHISKAS CATMILK PLUS Cover

WHISKAS CATMILK PLUS

#TOP 3 PetAg KMR Kitten Milk Replacer Powder Cover

PetAg KMR Kitten Milk Replacer Powder

#TOP 4 PetAg KMR Kitten Milk Replacer Powder Cover

PetAg KMR Kitten Milk Replacer Powder

#TOP 5 PetAg KMR Kitten Milk Replacer Liquid Cover

PetAg KMR Kitten Milk Replacer Liquid

#TOP 6 Pet-Ag KMR Kitten Milk Replacer Powder Cover

Pet-Ag KMR Kitten Milk Replacer Powder

#TOP 7 Under the Weather Kitten Milk Replacer Powder with Colostrum Cover

Under the Weather Kitten Milk Replacer Powder with Colostrum

#TOP 8 Nutri-Vet Milk Replacement For Kittens Cover

Nutri-Vet Milk Replacement For Kittens

#TOP 9 PetAg Petlac Milk Powder for Kittens Cover

PetAg Petlac Milk Powder for Kittens

#TOP 10 Revival Animal Health Shelter’s Choice Kitten Milk Replacer Powder Cover

Revival Animal Health Shelter’s Choice Kitten Milk Replacer Powder

Brand Manna Pro Whiskas PetAg PetAg PetAg PetAg undertheweatherpet Nutri-Vet PetAg Revival Animal Health
Flavor Milk Milk flavorless Milk Unflavored Milk Cat / Kitten Milk Probiotics Milk Milk
Age Range (Description) Kitten Adult Kitten Kitten Kitten Kitten All Life Stages Kitten Kitten Kitten
Item Form Powder Liquid Powder Powder Liquid Powder Powder Powder Powder Powder
Specific Uses For Product Digestive Health Digestive Health Nutrition stomach Weight Raising Orphaned Kittens, Supplementing the Diet of Nursing Kittens, Providing Nutrients for Growing or Adult Cats Immune Support weight weaning Milk Replacement
Item Weight 3.5 pounds 10.12 pounds 14.4 ounces - 1.16 pounds 12 ounces 14.9 ounces 12 ounces 0.704 ounces 14.9 ounces
Item Package Dimensions L x W x H 13.66 x 10.83 x 4.37 inches 16.18 x 6.5 x 4.53 inches 5.47 x 4.09 x 4.06 inches - 6.58 x 2.64 x 2.32 inches 5.59 x 4.13 x 4.06 inches 6.46 x 3.74 x 3.66 inches 6.46 x 3.74 x 3.7 inches 5.59 x 4.13 x 4.06 inches 9.96 x 8.58 x 2.4 inches
Brand Name Manna Pro Whiskas PetAg - PetAg PetAg undertheweatherpet Nutri-Vet PetAg Revival Animal Health
Target Audience Keyword dogs, horses, house-cats house-cats cat, house-cats - house-cats house-cats house-cats house-cats house-cats house-cats
Size 3.5 Pound (Pack of 1) 0.84 Ounce (Pack of 24) 12 Ounce (Pack of 1) - 16 Fl Oz (Pack of 1) 12 Ounce (Pack of 1) 12 Ounce (Pack of 1) 12 Ounce (Pack of 1) 10.5 Ounce (Pack of 1) 1 Pound (Pack of 1)
Age Range Description Kitten Adult Kitten - Kitten Kitten All Life Stages Kitten Kitten Kitten
FTB Score
9.8
9.7
9.5
9.5
9.5
9.4
9.4
9.4
9.3
9.3
Where to Buy

Frequently Asked Questions (FAQs)

1. Is milk replacer good for cats?

Milk replacers, specifically powdered kitten milk replacement formula, are beneficial for kittens. It is recommended to use powdered formula instead of canned liquid formula to prevent diarrhea in kittens.

2. How long should kittens be on milk replacer?

Kittens should be solely fed with milk replacer until they reach 3-4 weeks of age. After this time, the weaning process can begin, and other sources of nutrition can be introduced.

3. What kind of milk can baby cats drink?

Baby cats, or kittens, should ideally drink their mother's milk. However, if that is not possible, they will require a kitten milk replacer, also known as KMR or kitten milk formula, as a suitable alternative.

4. Can I give my cat almond milk?

It is not recommended to give cats almond milk. Cats do not naturally consume nuts, and while a small amount of almond milk may not be harmful, it does not provide the necessary nutrition for cats and may have high fat content.

5. What does Karo syrup do for kittens?

Karo syrup, or a sugar source like pancake syrup or a sugar-water mixture, can be applied to a kitten's gums to increase blood sugar levels. This is done while warming the kitten and is typically done every 3 minutes.

6. Is there a milk that cats can drink?

Cats can consume whole, skim, or lactose-free milk in small quantities, as long as they do not have any adverse reactions such as vomiting or diarrhea. Some experts suggest that cream may be a better option as it contains less lactose than whole or skim milk.

Editor's Notes

During our cat milk replacer research, we found 24 cat milk replacer products and shortlisted 10 quality products. We collected and analyzed 112,414 customer reviews through our big data system to write the cat milk replacers list. We found that most customers choose cat milk replacers with an average price of $28.67.

The cat milk replacers are available for purchase. We have researched hundreds of brands and picked the top brands of cat milk replacers, including Manna Pro, Whiskas, PetAg, undertheweatherpet, Nutri-Vet. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by

Janie Foster Avatar

Janie Foster

Janie Foster is a writer & pet blogger from Los Angeles, she enjoys living with her two cats and three dogs. She owned her first dog 10 years ago and then started her personal blog to record her dog's daily life. Throughout her personal life, she has developed specialized knowledge in pet care, pet nutrition, feeding habits, and more.