A kitten waiting for her milk

12 Best Kitten Milk Replacers Of 2021

Kittens need additional or supplemental nutrition during their growth spurts. Milk replacers are liquid meals that can provide all the nutritional value to a weak body of your kitty. And this is where kitten milk replacers play a vital part. You can also use them for senior or weak cats to keep them healthy. Whether you are looking after a newborn or a senior cat, feeding these products are highly dense in nutrition and are very easy to digest.

If you are struggling to find the best kitten milk replacer, then you have come to the right place. In this post, you’ll get to know about the best kitten milk replacers that you can feed to your kitty without any side health concerns.

Different types of milk replacers have different nutritional values. Some of them are complete and balanced, while others offer nutritional enhancement and supplemental value. 

Let’s reveal the reviews!

Quick Look

The 12 Best Kitten Milk Replacers


This formula is suitable for young kittens and newborn after it has consumed its mother’s milk for a couple of days.

The formula has all the required minerals and vitamins that a young kitten needs at this stage of life. Your kitty will get dense nutrients and calories required for growth. There is a proper ratio of carbohydrates, proteins, and fats that a young cat needs to thrive.

It also contains prebiotics and probiotics to keep the gut healthy. Easy to digest nutrients make it an ideal choice for a young digestive system. 

As this formula fulfills the nutritional requirements of a growing and weak cat, it is suitable for all kinds of cats. This powder is very easy to mix, and you just need to add one part of this powder into two parts of warm water. 

You can also refrigerate milk for up to 24 hours if you want. You can place your open container into the fridge and keep it there for up to 90 days to keep it fresh.


  • Come with pre and probiotics.
  • Highly digestible.
  • Nutritionally dense with adequate rations of carbs, fats, and proteins.
  • Easy to prepare.
  • Suitable for newborns up to 6 weeks old.


  • Only suitable for intermittent or supplemental feeding.

This formula closely matches all the ratios of energy and protein that your kitten would consume naturally.


The product is suitable for all newborn kittens for up to 6 weeks. And it is suitable for a young who has already fed from their mother for at least 4 to 5 days.

If you are looking for a budget pick, then you can consider buying the PetLac milk replacer by PetAg. This formula has all the minerals, amino acids, and vitamins that are necessary for the growth of a young kitten.

This formula is also beneficial for lactating or pregnant cats, as it would meet their body’s growing energy demands. And it is equally fruitful for old or ailing cats. 

The formula is very easy to make, and you just need to add it to warm water. It can be refrigerated for up to 24 hours, and you can refrigerate an open container for about 90 days. You can also freeze it for 180 days.


  • The formula integrates necessary amino acids.
  • Features pro and prebiotics.
  • Safe for cats of all ages.
  • Safe for pregnant, ailing, or lactating cats.
  • Complete diet for the kittens who cannot nurse.


  • Not the best option for adult cats.

It is the best formula designed for young as well as pregnant, lactating, and ailing old cats. It has all the required nutritional value that is mandatory for the growing body needs.


This formula is developed for mimicking mother’s milk and has a full spectrum of minerals and vitamins for the young growing kitten.

The powdered formula is very easy to mix. It contains all the mandatory ingredients that are required for the growth spurts of a teen cat.

This formula is developed to provide an energy boost to the muscles of a kitty and improve bone growth. It also features magnesium content, antioxidants, vitamins, and Taurine along with omegas. The formula has been developed from original milk, and it mimics the mother’s milk very well.

You can give this milk to your cat without any fear if it has a sensitive tummy. The easy to digest formula makes it a great choice for bottle feeding when needed.


  • Super easy digestion formula milk.
  • Nursing mother cats can also use it
  • A good option for old cats for a nutritional boost.
  • Excellent for newborn muscle development.
  • The mix blends well at room temperature


  • It can be refrigerated for only a month once opened.

To help your kitty grow up strong, you need to feed it with the Hartz kitten milk replacer.


Made with natural proteins that are found in mother’s milk, it is the best formula for the growth and development of bones and teeth.

Interested in buying a formula that is suitable for the nourishing needs of your little furball? Bring home the milk replacer formula by GNC. It is made with natural milk protein, which makes the formulas best suited in the development of teeth and bones of your kitten.

The formula also features minerals, vitamins, and extra nutrients to provide support to your little kitty’s overall immune system. It also assists in boosting the digestive system of your little kitty. So when your cat requires some extra dose of energy, it’s time to feed her with this formula by GNC.


  • Provides kittens with wholesome nourishment.
  • Extra nutrients to boost the immune system.
  • Improves digestive systems.
  • Helps make bones and teeth stronger.
  • A good choice for lactating and pregnant cats as well (vet’s advice mandatory).


  • Not the best option for older cats.

This product is best for a supplement and intermittent use, and you can feed it to your cat for a quick boost of energy.


For boosting the immune systems as well as the digestive system of your little furry friend, this formula is going to work as it contains the necessary immunoglobulin and enzymes.

The little furry member of your home requires plenty of attention. It has a very weak immune system due to the underdeveloped digestive system. Therefore, its body requires additional enzymes and immunoglobulin for this extra power.

The formula by Thomas Labs promotes a well-balanced growth to provide support to the newcomer and increase its overall development. With better digestive systems, the young one can easily consume minerals and vitamins, which can boost its immune system.  


  • Good to use for kittens, puppies and other small animals.
  • Provides necessary nourishment at an early age.
  • Boosts balanced development and growth.
  • Features necessary immunoglobulin and digestive enzymes.
  • Natural goat milk is best for digesting nutrients.  


  • Only suitable for small breeds.

You can use this formula if your little furball is having trouble with its digestive system. 


For boosting growth and weight gain from birth to weaning, the Nutri-Vet formula is the best choice.

The formula is not only suited between birth and weaning stage, but it is useful in all stages. The entire purpose of this formula is to provide nutrients to the body whenever they are required. Therefore it is a formula that you can give to your kitty during growth stages, pregnancy, lactating, and ailment or during old age.

The formula promotes muscle development as well as skin and body-tissue development. As it is the new formula by Nutri-Vet, therefore it also includes probiotic (Opti-Gut). It promotes healthy gut development of your kitten from an early age. It is one of the best options for you to consider for your young kittens.


  • Balanced nutrients.
  • Boosts digestive system.
  • Promotes muscle and skin tissue development
  • Improves the immune system.
  • Excellent for all stages of life.


  • Features BHA as a preservative which might affect the tummies of some cats.

This formula is a good choice for all stages and all types of cats as it helps develop the gut as well as the immune system of the little animal.


Want to buy a cost-effective option? Revival Animal Health milk replacer is suitable for all breed sizes.

The Foster Care formula is the ideal choice if you are looking to give something to a newborn kitten for the first 35 days of its life. It reduces GI irritation and eradicates vomiting or diarrhea. There are increased levels of fats, carbohydrates, and proteins present in this formula.

With the energy boost, a fading kitten will get all the nutritional needs fulfilled. The formula features BIO-MIOS and IgY, which ensures the development of your kitten’s immune system and also promotes the development of good bacteria.


  • Best choice for immune development.
  • Boosts good bacteria development.
  • Features fats, proteins, and carbohydrates to provide the best nutritional value.
  • Low in lactose so reduces any chances of vomiting or diarrhea.
  • Top choice for the first 35 days.


  • Not the best option for lactating cats.

It is the best formula for the initials 4 to 5 weeks for a young kitten. It is low in fructose and demotes any chances of vomiting and diarrhea.


Interested in buying a formula created by veterinarians, then choose the Well & Good milk replacer.

Animal vets develop the Well & Good formula, and they understand what the requirements of a young kitten at an early stage are. The formula can nourish a newborn up to 6 weeks and is a good choice for lactating and pregnant cats too.

This formula features a blend of proteins and fats, as well as colostrums. These ingredients are best for boosting the digestive system and increasing the development of the kitten’s immune system. 

At an initial stage, this formula is very useful against any diseases. As this formula is vet approved, therefore, it is suitable for kittens as milk replacer and suitable for the adult cats as a supplement


  • Animal vets have developed the formula.
  • Great for a newborn for the next six weeks.
  • Features a blend of fat, carbohydrate, and protein.
  • Very useful to protect the kitten against some diseases early one.


  • Not suitable for

It is the best choice milk replacer for young aged kittens and is equally great for lactating and pregnant cats. But don’t give it to older felines.

It is another great option if you’re looking to boost the immune system as well as the overall body health of your kitten.

Not only this milk replacer is a good choice for newborns up to 6 weeks, but you can also feed it to pregnant felines and cats that are lactating. If your furry friend needs an energy boost, then there is no better food supplement than this.

Another benefit that you can obtain with this supplement is that you can feed it to the older felines too. If your cat has an ailment, then the Veta-Lac milk replacer will prove to be a useful choice because it helps in improving the digestive system. And along with it, the immune system gets better as well.


  • Top choice for lactating and pregnant felines.
  • Good choice for ailing cats.
  • Best for newborns up to 6 weeks.
  • Includes all the ingredients necessary to improve the digestive and immune system.


  • It cannot be refrigerated for more than a month.

This formula works as a milk replacer for kittens and as a supplement for adult cats.


This vet-approved formula milk is available at an affordable price. 

As it is a vet-approved and vet-developed formula; therefore, colostrums are going to make an appearance here as well. Colostrums are essential for small animals that are weak and require extra nourishment to improve their gut health.

With better gut health, they will have a better digestive system. But the formula also features fats, proteins, and carbs that are useful for the growth and development of small kittens. It is a good choice to be used as a supplement for adults too. 

The primary objective here is to provide your cats with an energy boost when they need it the most. And the formula achieves it quite effectively.


  • Vet-formulated and approved.
  • Features colostrums for moving the digestive health of small animals.
  • Works great as an adult supplement.
  • Improves gut health and immunity.
  • Great taste.


  • Not for older cats.

This formula can be used as a treatment for adult cats and as a milk replacer for your younger ones.


Apart from the regular proteins, fats, and carbs, this formula also features Taurine, which is good for improving the eye and heart health of your kitten at an early age.  

More and more milk replacers and supplements focus on the overall bone and muscle development of a kitten or a cat. They focus on improving the digestive systems and with it the animal’s immunity. But there are other vital organs that you need to take care of.

This milk replacer features Taurine that specifically focuses on the eye and heart. Therefore, you can use it in combination with other regular milk replacers as well. 

Excellent heart condition boosts blood circulation, and it will improve their eyesight. It will also help in improving their overall health.


  • Top choice for heart and eye health.
  • Better suited for small kittens.
  • Adults can use it as a supplement.


  • Not the ideal option for older cats.
  • Focuses more on eye and heart health than other growth areas like bone and muscle.

If you are concerned about the eyesight and heart health of your furry little friend, then this formula is the ideal choice.


This milk replacer is rich in colostrums and features vitamins, minerals, and proteins. 

The carbohydrate and amino acid-rich formulas work well for kittens as well as lactating and pregnant felines.

One of the best features of this formula is that it comes with all the human-grade ingredients. The flavor is something that your kitties will love. And there are enough nutrients in it to give energy boots to your young furballs.

This formula is equally great for lactating and pregnant felines. It has all the essential minerals, vitamins, proteins, amino acids, and carbohydrates that your furry friends need to grow. The formula focuses on improving the overall gut health as well as the immune system of your animal.


  • High nutritional value.
  • Great to taste.
  • Human-grade ingredients.
  • Best suited for improving digestive health.
  • Also works on boosting immunity.
  • Milk replacer is good to use as a supplement for pregnant/lactating cats.


  • Not the best choice for ailing or old cats

This formula has all human-grade ingredients in it, and your cat will love it. The formula will boost the overall gut health of your feline.


When you start a search for a milk replacer for your kitty, you’ll be overwhelmed with the different types of kitten milk replacer available on the market. The best one by far is the PetAg KMR Kitten Milk Replacer. Most of the formulas that you will find on the market imitate each other. Therefore, you need to go for a formula that your feline loves the most.

Different cats respond differently to a range of products. And the PetAg KMR has the best market response by far. It tastes nice, and it is going to be vital energy support at different stages. Young kittens need it for complete nourishment.

Lactating or pregnant cats need it for the sudden increase in energy needs. And older or ailing cats need it to recover fast. And the KMT has all the ingredients to boost the energy levels. It also improves overall gut health and promotes bone and muscle strength as well.  

Preparing a mix of this formula is very simple, too, and you don’t have to go through a lot to make it ready. This product also has the best shelf-life where with refrigeration you can use the open container for 180 days and use it for six months when you freeze it

Kitten milk replacers are very useful for orphan kittens or the ones who are so weak that they cannot mother-feed on their own. These milk replacers have the right amounts of nutrients that these little animals need to grow big and strong. These products are focused on improving the digestive health of these kittens, which will directly boost their immune system.

So which one of these products have you tried, or are you looking to try? Do you have any recommendations? Leave your suggestions and comments in the sections given below!