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6 Best Kitten Milk Replacers in 2024 – Reviews & Top Picks

Written by: Kathryn Copeland

Last Updated on May 14, 2024 by Catster Editorial Team

bottle feeding a tabby kitten

6 Best Kitten Milk Replacers in 2024 – Reviews & Top Picks

VET APPROVED

Dr. Lorna Whittemore Photo

REVIEWED & FACT-CHECKED BY

Dr. Lorna Whittemore

Vet, MRCVS

The information is current and up-to-date in accordance with the latest veterinarian research.

Learn more »

bottle feeding a tabby kitten Due to unforeseen circumstances, some people must take in newborn kittens that need to be cared for around the clock. There are many reasons that this can happen, but the important thing here is that the kittens need to be looked after and bottle-fed. This is why finding the best kitten milk replacer is essential!

If you’re new to fostering or your current charges don’t seem to like the kitten milk replacer (also called KMR) that you’ve been using, you need to find something fast. But when you’re looking after one or more kittens, your schedule is incredibly tight. So, here are reviews of six of the best kitten meal replacers. You’ll be feeding those hungry kittens in no time!

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A Quick Comparison of Our Favorites

Image Product Details
Best Overall
Winner
PetAg KMR Powder Milk Supplement for Kittens PetAg KMR Powder Milk Supplement for Kittens
  • Comes in liquid and powder forms in different sizes
  • For orphaned kittens and stressed or senior cats
  • All-natural and highly digestible
  • Best Value
    Second place
    Hartz Powdered Milk Replacer Formula for Kittens Hartz Powdered Milk Replacer Formula for Kittens
  • Affordable
  • Includes real milk, taurine, antioxidants, and omegas
  • Easily digested and good for sensitive tummies
  • Premium Choice
    Third place
    Nutri-Vet Powder Milk Supplement for Kittens Nutri-Vet Powder Milk Supplement for Kittens
  • Made with whey protein for essential amino acids
  • Opti-Gut has probiotics for healthy digestion
  • Made in the U.S.A.
  • GNC Pets Ultra Mega Premium Milk Replacer for Kittens GNC Pets Ultra Mega Premium Milk Replacer for Kittens
  • Designed to wean kitten from the bottle
  • Made with enriched skim milk for easy digestion
  • High in protein
  • PetAg PetLac Kitten Milk Replacement PetAg PetLac Kitten Milk Replacement
  • Contains FOS and live probiotics for healthy digestion
  • Has taurine and milk proteins
  • Suitable for nursing and post-weaned kittens
  • The 6 Best Kitten Milk Replacers

    1. PetAg KMR Powder Milk Supplement for Kittens — Best Overall

    Pet-Ag KMR Kitten Milk Replacer Powder

    Sizes: 6 oz., 11 oz., 12 oz., 28 oz., or 5 lbs.
    Product form: Liquid or powder
    Protein: 42%
    Fat: 25%

    The best overall kitten milk replacer is PetAg’s KMR Powder Milk Supplement for Kittens. There are many options: It comes in liquid form in one size (11 ounces) and powder form in five sizes (6, 11, 12, and 28 ounces and a 5-pound bag). It provides a completely nutritionally balanced meal for kittens lacking their mother’s milk, but it can also be given to seniors and stressed cats. It’s all-natural and highly digestible, provides necessary minerals and vitamins like taurine and amino acids, and is high in protein.

    The main flaw with this kitten meal replacer is if you opt for the powder form, it sometimes doesn’t incorporate and dissolve well into the water.

    Pros
    • Comes in liquid and powder forms in different sizes
    • For orphaned kittens and stressed or senior cats
    • All-natural and highly digestible
    • Contains necessary nutrients for growing kittens
    Cons
    • Powder doesn’t always consistently incorporate into the water

    2. Hartz Powdered Milk Replacer Formula for Kittens — Best Value

    Hartz Powdered Kitten Milk Replacer Formula

    Size: 11 oz.
    Product form: Powder
    Protein: 30%
    Fat: 40%

    The best kitten milk replacer for the money is Hartz’s Powdered Milk Replacer Formula for Kittens. It contains real milk in addition to necessary minerals and vitamins that include taurine, omegas, and antioxidants for overall health and muscle growth. It closely resembles a mother cat’s milk, so it is gentle on tummies and easily digested. It can be given to senior cats and nursing mothers too.

    However, it doesn’t come with a scoop, and the container is fairly narrow, so it can be challenging to get out. Also, some kittens might get stomach upset with this product.

    Pros
    • Affordable
    • Includes real milk, taurine, antioxidants, and omegas
    • Easily digested and good for sensitive tummies
    • Suitable for senior cats and nursing mothers
    Cons
    • Scoop is not included
    • Might cause stomach upset

    3. Nutri-Vet Powder Milk Supplement for Kittens — Premium Choice

    Nutri-Vet Milk Replacement For Kittens

    Size: 12 oz.
    Product form: Powder
    Protein: 30%
    Fat: 40%

    Nutri-Vet’s Powder Milk Supplement for Kittens is our premium choice pick. It’s made with whey protein, which includes essential amino acids for overall health and growth. Nutri-Vet also offers a custom blend named Opti-Gut, which has probiotics for healthy digestion. It’s full of the right balance of fat, protein, and carbs in addition to vitamins, minerals, and amino acids.

    One of the problems with this product is it is more expensive than some of the others. Also, pickier kittens don’t seem to like it.

    Pros
    • Made with whey protein for essential amino acids
    • Opti-Gut has probiotics for healthy digestion
    • Made in the U.S.A.
    • Right balance of nutrients, vitamins, and minerals
    Cons
    • Expensive
    • Some kittens don’t like it

    4. GNC Pets Ultra Mega Premium Milk Replacer for Kittens

    GNC Pets Ultra Mega Premium Milk Replacer Powder Formula for Kittens

    Size: 12 oz.
    Product form: Powder
    Protein: 42%
    Fat: 25%

    While GNC’s Pets Ultra Mega Premium Milk Replacer for Kittens is indeed a milk replacer, it’s actually a formula designed to wean your kitten from the bottle. It’s made with enriched skim milk, which is easily digested to make the transition to solid food easier on the stomach.

    It supports the kitten’s development and growth and is high in protein. It also helps the body develop immunity. Unfortunately, some pickier kittens don’t like it, and stock may be limited.

    Pros
    • Designed to wean kitten from the bottle
    • Made with enriched skim milk for easy digestion
    • High in protein
    • Helps them develop immunity
    Cons
    • Picky kittens don’t like it
    • Limited stock may impact availability

    5. PetAg PetLac Kitten Milk Replacement

    Pet-Ag PetLac Powder for Kittens

    Size: 10.5 oz.
    Product form: Powder
    Protein: 33%
    Fat: 18%

    PetAg’s PetLac Kitten Milk Replacement will benefit newborn kittens unable to nurse from their mothers. It’s highly digestible, contains FOS and live probiotics to aid healthy digestion, and has taurine and milk proteins essential for growing kittens. It’s also effective for nursing and for post-weaned kittens.

    However, it can be difficult to mix for some cat owners, and the texture can be grainy. Additionally, it has been known to cause upset stomachs in some kittens.

    Pros
    • Contains FOS and live probiotics for healthy digestion
    • Has taurine and milk proteins
    • Suitable for nursing and post-weaned kittens
    Cons
    • Doesn’t always mix well
    • Texture can be grainy
    • Might cause stomach upset

    6. Revival Animal Health Breeder’s Edge Foster Care Kitten Milk Replacer

    Breeder's Edge Foster Care Feline

    Size: 12 oz. & 4.5 lbs.
    Product form: Powder
    Protein: 32%
    Fat: 44%

    Revival Animal Health’s Breeder’s Edge Foster Care Kitten Milk Replacer is formulated to help kittens in their first 35 days of life. It promotes a healthy gastrointestinal tract, which means it’s less likely to cause diarrhea. It contains balanced vitamins, minerals, and nutrients for boosting the immune system and helps condition the skin and coat.

    But it tends to cause poop issues: Some kittens might get diarrhea and others might get constipated. The other problems are more about the seller than the product. For one thing, some cat owners receive a product with a broken seal, and others seem to receive the puppy instead of the kitten formula. If this does happen, do not give the puppy formula to your kitten. They will get an upset stomach. Stock and availability may also be limited.

    Pros
    • Formulated for the first 35 days of a kitten’s life
    • Promotes a healthy GI tract
    • Boosts the immune system
    • Conditions the skin and coat
    Cons
    • Might cause poop issues
    • Product might arrive unsealed
    • Might receive the puppy formula instead

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    Buyer’s Guide: How to Choose the Best Kitten Milk Replacer

    Before you purchase your chosen milk replacer, let’s go over a few points that can help you make the best decision for your kitten.

    Liquid vs. Powdered

    Liquid formula is one of the easiest to work with because you don’t have to mix or measure the right amount of water, but it does need refrigerating once opened. The liquid has a shorter shelf-life and is more expensive than the powder when you consider how much powder versus liquid is in the packaging.

    You can get far more powdered formula than liquid for the same price, so it’s less expensive and has a longer shelf life. But you do need to mix it, and many powdered formulas don’t always mix well. Whether you choose liquid or powder, though, it will need to be warmed up before feeding your kitten.

    Bottles

    You’ll need kitten bottles and a few different types of nipples for your kitten, in addition to syringes. Your best bet is to go with a variety pack, as kittens can be rather particular about the nipple that they drink from. Some variety packs will include brushes, which will make cleaning the bottles much easier.

    siamese kittens
    Image Credit: Atiput Wongyim, Shutterstock

    What You Should Look For in a Kitten Milk Replacer

    Considering that kitten meal replacers are designed to replace a mother cat’s milk, there are ingredients and nutrients that you should look for:

    Protein and fat:
    To support their growing body, a kitten needs a formula high in protein and fat. It’s designed to closely resemble the fat and protein found in a mother cat’s milk.
    Vitamins and minerals:
    Kitten milk replacers should contain vitamins and minerals that support a growing kitten. Vitamins like E, B12, D, and A are vital, as is added calcium for growing bones.
    Probiotics and prebiotics:
    Probiotics and prebiotics, including FOS, are crucial for building good bacteria in the gut and contributing to a strong digestive system.
    Amino acids:
    These should include essential taurine, which aids development, vision, and digestion health.

    Mixing

    Whether you purchase liquid or powder formula, once it’s been opened, you’ll need to store it in the refrigerator. It should be used before the expiration date. While mixing, it should smell a bit sweet, so if it smells “off” to you, such as sharp or bitter smelling, it is likely spoiled and shouldn’t be used.

    Once mixed, place the bottle in warm water to warm it up (or use a bottle warmer if you have one), and apply some of the formula on the inside of your wrist to test the temperature. It should feel comfortable and just warm, never hot.

    While many kittens grow out of the essential supplies you buy for them when they are young, finding a product that can last them a lifetime is like hitting the cat jackpot - which is why we love the Hepper NomNom Cat Bowl so much. Its unique cat-inspired design offers dual, stainless steel bowls that are wide and shallow, crucial for neck support when kittens are little and benefits mature cats by offering whisker relief. If you want to learn more about what other advantages the NomNom will provide for your growing kitten, click here.

    Hepper 360 Cat Feeder, Stainless Steel, Anti-Chew...
    • NO MESS - The 360° tray on this cat food and water bowl set has a raised design to catch and...
    • WHISKER FRIENDLY - Shallow and wide metal containers with flat bottoms ensure your kitty can enjoy...
    • CHEW-SAFE MATERIALS - Kittens and cats love chewing on silicone and soft rubber - but it's a choking...

    At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding designs of this cool cat company!

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    Conclusion

    PetAg’s KMR Powder Milk Supplement for Kittens is our favorite with its high protein. It’s also highly digestible and contains the important amino acid, taurine. Hartz’s Powdered Milk Replacer Formula for Kittens contains real milk, taurine, omegas, and antioxidants for overall health and muscle growth, and it’s affordable!

    Finally, Nutri-Vet’s Powder Milk Supplement for Kittens is our premium-choice pick because it’s made with whey protein, which includes essential amino acids for overall health.

    Our goal with these reviews is to lead you to the best kitten meal replacer for your kitten. We know how time-consuming caring for a newborn kitten can be, so hopefully, we’ve made your life a little easier.

    See also:


    Featured Image Credit: Adina Voicu, Pixabay

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