Top 10 Best Cat Supplements, Vitamins and Oils

All cat owners have struggled with maintaining their cat’s health at one point or the other.

Everyone wants their cat to live a healthy and happy life.

Supplements do this exact job for you!

Cat supplements help with the essential amino acids, proteins, vitamins, minerals, and essential nutrients they might needs.

Nowadays, artificial food and store-bought kibble have changed the nutrients a cat used to have!

Supplements aid with replacing those much-needed nutrients!

We tried and tested out some of the best cat supplements out there and here is a breakdown for the Top 10 best cat supplements.

The Best Cat Supplement

1. Purina Pro Plan FortiFlora Cat Probiotic Supplement – My Top Pick

 Key Facts
  • Brand: Purina FortiFlora
  • Weight: 1.6 Ounces
  • Main Ingredient: Probiotics

The Purina Pro Plan FortiFlora Cat Probiotic Supplement is great for young kittens and cats with dietary problems and diarrhea.

FortiFlora itself is the number 1 recommended brand by veterinarians for probiotic supplements.

This supplement is extremely easy to add to the food of cats who have gastrointestinal issues. It just has to be sprinkled on top of their food.

In addition, this product has around 500 million live microorganisms, which help manage your cat’s dietary issues.

This product also contains the probiotic strain Enterococcus Faecium SF68, which ensures that the microorganisms inside the product remain alive and the product has a longer shelf life.


This product also contains vitamins E, C, and beta-carotene, which improve your pet’s overall health by strengthening their immune system.

Thus, ensuring that they are healthy and happy at all times.

 Things I really like
  • Can be easily added to cat food (by sprinkling it on top)
  • Has a long shelf life and will stay fresh!
  • The great taste increases your pet’s appetite
  • Antioxidant Vitamins E, C, and Beta-carotene help your cat develop a stronger immune system
 Things I don’t like
  • The product has a strong yeast smell which is not liked by some cats, and they might refuse to ingest it.
  • The product is priced at $28.99, which is considered expensive by some customers.
  • Might not work for some cats due to their taste preferences.

Does homemade raw cat food NEED supplements added?

2. Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs & Cats

 Key Facts
  • Brand: Zesty Paws
  • Weight: 10.4 ounces
  • Main Quantity: Salmon Oil

The Pure Wild Alaskan Salmon Oil by Zesty Paws is available for both dogs and cats.

It is great for the physical health of your pet since it helps develop their immune system, which in turn protects them from various diseases.

What is great is:

This product has pure salmon oil, which contains Omega 3 and Omega 6.

These have a positive impact on not only your pet’s immune system but also keeps their skin soft, their heart-healthy, and their hips and joints strong.

Due to this, your pet stays healthy and in shape.

In addition to this, the company is a trusted name in pet products, and all their products are manufactured in FDA-approved facilities.

 Things I really like
  • A good taste which helps dogs and cats easily ingest the food.
  • Is available in a liquid form so it can be easily added to your pet’s food.
  • All breeds of cats and dogs are known to love this product.
  • This product is created in safe and certified facilities in the US.
 Things I don’t like
  • It is slightly expensive compared to similar products from different manufacturers.
  • The liquid can be difficult to manage and sometimes leaks from the packaging.
  • Some pets may refuse to eat it based on their taste preferences.

3. Vetri Lysine Plus

 Key Facts
  • Brand: Vetri Science Laboratories
  • Weight: 6 ounces
  • Main Ingredient: Lysine

Vetri Lysine Plus is an excellent choice for cat owners who want to strengthen their pet’s immune system.

L-Lysine, the amino acid present in this product, helps improve your cat’s immune system, which in turn protects it from harmful diseases.

It also helps resolve your cat’s respiratory problems by encouraging the production of antibodies and hormones.

This can also improve your cat’s vision and eye health.

This product also helps your cat heal from injuries quicker by encouraging their tissue repair process.

Veterinarians recommend this supplement for the development of your cat’s respiratory, and overall immune system.

 Things I really like
  • Is available in a delicious chicken flavor which cats love.
  • Help reduce the stress your cats face due to respiratory issues.
  • Is suitable for households with multiple cats because upper respiratory issues are contagious, and this ensures that all your pets stay protected.
 Things I don’t like
  • Since it is available in a chew form, some cats might not want to ingest it.
  • Sealed products also dry out soon, which makes it difficult for you cat to eat them.

4. Billion Pets Premium Hemp Oil

 Key Facts
  • Brand: Billion Pets
  • Weight: 44g
  • Main Ingredient: Hemp Oil

The Billion Pets Premium Hemp Oil one of the best choices for your cat for a variety of reasons.

Firstly, it is created in the USA in facilities that have been inspected and approved by the FDA and the GMP.

This means that this product has been manufactured in high-quality surroundings.

In addition, this product contains Plant Extract, Flavonoids, antioxidants, Omega 3 and 6, mineral traces, and Multi-Vitamins (A, E, and D).

These not only help strengthen your cat’s immune system but also improves the quality of their skin and coat, making it smooth and shiny.

Hemp oil also helps ease your pet’s stress and anxiety by relieving them of gastrointestinal issues and skin disorders (eczema, acne, etc.).

 Things I really like
  • Hemp oil helps reduce inflammation and anxiety in your pet.
  • Recommended by various Veterinarians
  • Has organic ingredients which help keep your pet healthy.
 Things I don’t like
  • Is fed to your cat with a dropper so it might be difficult feeding your cat.
  • The amount you should give your cat according to their weight is not specified on the packaging which might be inconvenient for some users.

5. Pet Ultimates Pro-biotics for Cats

 Key Facts
  • Brand: PetUltimates
  • Weight: 44g
  • Main Ingredient: Probiotics

The Pet Ultimates Probiotics for Cats is a good choice for your cat if they have digestion issues and smelly litter boxes.

It is created in the US and is approved by the FDA, which makes it safe and high quality.

It also contains five billion CFUs of various kinds of probiotic bacteria.

This helps improve not only your cat’s digestion issues but also their immune system and overall health.

It is also packed in small batches to ensure freshness and longer shelf life.

 Things I really like
  • They have a two-week money-back guarantee
  • Can be used effectively for twenty different cat species
  • Manufactured in secure facilities
 Things I don’t like
  • Some cats might not like its smell and may refuse to eat it.
  • Might not help resolve your cat’s digestion issues immediately.

6. VetriScience Probiotic Every day For Cats

 Key Facts
  • Brand: VetriScience Laboratories
  • Weight: 4 ounces
  • Main Ingredient: Probiotics

The Probiotic Every day by VetriScience is excellent for your cat’s digestion and resolves all kinds of respiratory issues.

It also provides support to the immune system and resolves stress and anxiety.

The product is manufactured in safe environments, which increases the quality of the product.

The prebiotics and probiotics in this product help your pet stay healthy and happy.

 Things I really like
  • These chews have a duck flavor which your cat will love.
  • It is manufactured in high-quality conditions.
  • Helps your cat de-stress and lessens anxiety.
 Things I don’t like
  • Your cat might not like the shape and texture of the chews.
  • Your cat might not like the smell and duck flavor of the product.

7. Tomlyn Immune Support L-Lysine Supplement Powder for Cats-

 Key Facts
  • Brand: TOMLYN
  • Weight: 100 g
  • Main Ingredient: Lysine

The Tomlyn Immune Support L-Lysine Supplement powder helps improve your cat’s overall immune system, including eye health.

It prevents various eye infections.

If your pet has difficulty breathing or cold sores, then this is a good option for you.

The L-Lysine in this product strengthens your cat’s immune system and prevents feline herpes and upper-respiratory infections.

The good part is:

This product is available in chicken and fish flavors and is also recommended by most vets.

 Things I really like
  • Keeps your cat’s eye health and prevents sinus infections.
  • Recommended by vets.
  • Extremely easy to use, just add it to your cat’s food.
 Things I don’t like
  • If your cat is picky about food supplements, they might not like its smell
  • More expensive compared to some other products.

8. Dr. Mercola Complete Probiotics for Pets

 Key Facts
  • Brand: Dr. Mercola
  • Weight: 4.8 ounces
  • Main Ingredient: Probiotics

Dr. Mercola Complete Probiotics for pets is one of the most effective products and can be used by both cat and dog owners.

It contains 14 powerful probiotic strains of bacteria that boost your pet’s immune system and resolves all kinds of respiratory issues.

A great feature:

It also helps reduce the toxins in your pet’s system by flushing them out.

In addition, this product will also boost the creation of B vitamins, such as folic acid and Vitamin K, in your pet.

Dr. Mercola is one a famous and reputed company and is a big name in pet products.

This product will ensure that your pet stays strong and content at all times.

 Things I really like
  • This is a tested product which has been created in a safe environment.
  • Also works on pets with sensitive digestive systems.
  • Has no odor so pets who are picky eaters won’t have issues ingesting this.
 Things I don’t like
  • Daily probiotics may not suit your pet
  • Can be considered slightly expensive compared to some other products.

9. Hemp Oil for Dogs Cats

 Key Facts
  • Brand: Healpark
  • Weight: 4 ounces
  • Main Ingredient: Hemp Oil

Healpark’s Hemp Oil is available for both dogs and cats.

It is an organic Hempseed Oil extract and is extremely beneficial for your pet.

This Hemp Oil helps reduce inflammation and reduces joint pain in pets.

Due to this, your pet can move around easily and will be more energetic.

It has a lot of features.

In addition to this, this product is known for having a calming effect on pets and reduces anxiety, especially separation anxiety.

In addition to anxiety, this product also helps pets who have difficulty traveling long distances.

Furthermore, this particular product can be used for dogs and cats of all sizes.

Thus, making it one of the best hemp products you can choose for your pet.

 Things I really like
  • Healpark has great customer service and can be contacted if you are not satisfied with the product.
  • This product is completely natural, and the Hemp that is used is farm-grown.
  • The Oil is extracted in high-quality conditions.
 Things I don’t like
  • The product is slightly expensive compared to other, similar products.

10. Life Extension Cat Mix

 Key Facts
  • Brand: Life Extension
  • Weight: 5.6 ounces
  • Main Ingredient: Multi-Nutrient Formula

The Life Extension Cat Mix is an amazing product to improve your cat’s overall health.

It contains many nutrients including flavonoids, amino acids, and probiotics that help strengthen your cat’s immune system and protects it from various diseases.

This product is manufactured especially for cats, keeping their carnivorous needs in mind.

This is why this product contains specific nutrients such as taurine, arachidonic acid, and B vitamins.

This product is administered according to the weight of your cat, however, for most cats, two scoops a day is enough.

Life extension is a reputed company that has been operating since the 1980s.

They have a whole range of products that are specifically tailored to improve the physical health of cats.

The specific nutrients in this product help your cat remain healthy and lessen trips to the vet.

 Things I really like
  • This product is manufactured in high quality and safe conditions in the United States.
  • The product is available in a powder form which can easily be mixed in cat food.
  • Has multiple nutrients like amino acids, fatty acids, and probiotics which improve your cat’s overall health.
 Things I don’t like
  • The bottle does not contain a lot of product since you have to administer at least two scoops a day.
  • Some cats who are picky eaters might not ingest this easily.

What Supplements Are Good for My Cat?

Supplements these days are packed full of nutrients!

As a cat owner, it can get difficult to decide what is the best nutritious combination?

Here we break down some main ingredients present in most supplements and how it can help your cat.


Lysine is one of the most commonly found ingredients in pet supplements.

It is a beneficial component that helps your cat’s immune system by strengthening it.

It builds your cats defense system against many ailments and diseases.

It also helps aid their eye function and controls the symptoms of aging.

Moreover, it can strengthen your cat’s respiratory function and lungs! If you have a senior cat, then you should surely go for supplements containing lysine.

It also prevents many common diseases that cats battle against, this includes cold sores and Feline Herpes Virus growing.

Lysine plays a key role in producing antibodies and enzymes fight against many skin diseases and ticks that cats might get.

Hemp Oil

Hemp oil is an extremely beneficial supplement for your cat.

It helps them with pain management and many other symptoms of aging.

Hemp oil can be administered in their food and applied topically. It is great to control internal inflammation.


It helps treat skin ailments, allergies and is great to maintain a healthy coat.

It can help with the pain that comes along as your cat ages and joint lubrication.

However, always consult your vet before making hemp seed oil a regular in your cat’s diet.

Salmon Oil

Fish oils are extremely beneficial for your cat’s cardiovascular health.

It controls their lipid levels as well that help maintains good heart health.

Fun Fact:

If your cat is a British shorthair then it is possible that they might be struggling with obesity.

It is great to give them supplements with fish oil as it can control problems that come with weight gain!

This can include the treatment of arthritis and joint problems.

It can also help control the symptoms of degenerative diseases and make them more manageable especially in senior cats.


Probiotics is a more scientific term for saying good bacteria!

Mammals bodies have bacteria everywhere and bacteria does not necessarily mean bad or harmful.

An example would be the Lactobacillus bacteria- that make sure that your cat’s large intestine functions normally.

Probiotics are extremely beneficial to control digestion problems.

They prevent vomiting, diarrhea, constipation and make sure that your cat is digesting food and absorbing all its nutrients.

The overgrowth of bad bacteria can be harmful to your cat.

It can cause damage to their oral health, food allergies, stress and problems with worms.

Omega 3 Fatty Acids

Omega 3 Fatty acids are Extremely necessary for all mammals and especially for your four-legged felines!

It is important to get a supplement that has omega 3 and 6 fatty acids as the main ingredient. This helps maintain the coat of your cat!


If it is a long-haired breed like a Maine Coon, Himalayan or a Persian cat!

Moreover, it helps with various skin ailments- keeps the eyes sharp and the nails strong!

Omega fatty acids aid the body against many allergens as it keeps the immune system strong.

It prevents diseases that affect the liver, eyes, brain and many joint-related illnesses as well.

It mainly affects the central nervous system, that means it can help your pets against arthritis and inflammation.

Many pet vets recommend fatty acids for cats who have undergone trauma, surgery or have recently given birth!

It helps them regain strength and build muscle tissue.

It even helps speed up the recovery process for your cat, especially if they aren’t consuming food as they usually would.


Glucosamine is known as the holy grail of cat supplements. It is very popular in many supplements and is usually used to control inflammatory diseases that means it can control intestinal inflammation it can prevent problems with digestion of food

Moreover, glucosamine is great with arthritis and pain management.

Cats who are aging have a lot of problems with mobility and joint pain supplements containing glucosamine have reduced inflammation and pain many aging pets have his hip dysplasia in joint damage.

These supplements can help control their damage overall.


Calcium is necessary for all mammals. In fact, bone growth stunted in cats who may not have an adequate source of calcium.

This is where supplements are useful!

Many cats are lactose intolerant and may not react to cow milk, as well.

Their stomachs get upset and this may drain them of their energy. Supplements, however, provide your cat with a safer method of ingesting nutrients.

Their day to day food might not be as rich in calcium as you would expect it to be, and that may lead to a deficiency of the mineral in your cat. [/su_note]


Vitamins are important to carrots the same way they are important to humans.

They help with many bodily functions to take place smoothly!

Especially in mammals:

Vitamins play a key role in the absorption of other minerals! So, in simpler terms, without vitamins, your body will cease to function as per usual.

A cat’s diet contains enough vitamins on their own. However, supplements are needed after drama an injury when the cat is not having adequate food.


Chondroitin is usually a secondary ingredient that comes along with Glucosamine. Both theses supplements go hand in hand!

Chondroitin contributes more to senior cats!

As their body ages, their bone health also degrades. Chondroitin helps keep the bones healthy and improves mobility.

It is also good to prevent arthritis and joint problems in the future.

Milk Thistle

Milk Thistle is an extract that is great for your cat’s liver.

A healthy liver is extremely important for every mammal. The liver is responsible for removing toxins and producing healthy enzymes for the body.

Your cat can be affected with jaundice and other liver diseases that may prevent them from digesting or eating food.

Liver diseases can be harmful if not treated with the right medication! Many cats tend to have liver ailments after a traumatic injury or excessive medication.

Milk Thistle helps to prevent this damage.

It protects the body from many toxins and supports that cat’s bodily organs.

In simpler terms, this supplement can help cleanse the liver and boost your cat’s metabolism.

Are Cat Supplements Necessary?

If you have ever come across cat supplements, you must wonder- Does my cat need supplements? How will it help them?

The answer is a simple one!

All living beings need a balance of nutrients and minerals. That includes your four-legged friend as well.

Cats can also have an imbalance of nutrients due to various reasons like Nursing, Trauma or old age!

Here is some popular supplement for cats and how they contribute to their health.

Long Healthy Life

A supplement is good to maintain your cat’s overall health and elongate their life.

Cats are susceptible to many diseases. As they age, they are prone to bone degradation as well as.

In fact:

Cats can get skin diseases, degrading gum and dental health and digestion problems.

Supplements help to not only prevent these diseases but build your cats immune systems.

It can prevent and delay symptoms of aging and helps your cat live a healthy and long life!

They can keep up with their day to day activities and stay energetic even in older age.

Speedy Recovery After Trauma

If your cat has undergone a traumatic injury or surgery, it is likely that they may grow weaker in the recovery process.

Cats are strong creatures and survive very well with a lot of trauma.

However, their recovery process can take a toll on their health.

Trauma like injuries or medical procedure can put your cat under a lot of stress.

This may also slow down their recovery process and make them weaker.

Supplement help recovers their nutrient imbalance. Different nutrients have a different effect on your cat’s immune system.

For example:

Calcium improves bone health while probiotics are to maintain the digestive system.

They give your cat a push in the right direction and can also help with preventing infection, bacteria and healing wounds faster.

Keeps Your Cat Active

Supplements often provide cats with compounds that their diet is not adequately providing them with.

These days store-bought kibble can be nutritionally low. They have additives and preservatives that make your cat gain unhealthy weight.

Kibble can also have addictive qualities.

Moreover, supplements provide a healthy dose of all nutrients that should exist within a well-balanced diet.

You can mix it in with their normal food or give it to them individually.

It gives your cat a boost of energy and pumps up their metabolism. A healthy and happy cat is an active and playful one.

Prevents Diseases

A great part about supplements is how it can strengthen your cat’s metabolism. It helps improve their overall immunity.

Supplements contain vitamins, probiotics, oils and enzymes that make sure your pets defense system is ready!

It can help prevent irritation against allergens, the spread of bacteria, skin ailments and infections as well.

Supplements provide a boost of nutrients to a mammal’s body.

This helps them build a defense against many ailments and allergens that cats are susceptible to.

Helps with Aging Pets

As a cat owner, it is difficult to see your pet’s age! With age come many ailments.

This can include bone degradation, eye problems, dental problems, and sensory impairment.

Your cat may not be as playful as they use to be, nor do they enjoy activities that they would indulge in.

Supplements can come in handy at such a time.

When your cat is not active, they do not have enough food to replenish their energy as well.

At such a time, it is important to make sure there is no nutrient imbalance!

This can be harmful!

Your cat may be even more susceptible to diseases if they are not getting all the minerals and nutrients they need.

At such an age their bones and sensory health are at risk!

Supplements can help tackle these ailments and control symptoms of aging.

Medical Conditions

If your cat is suffering from a medical condition that is causing deficiencies, then you can use supplements!

There are many medical conditions that may be inhibiting the absorption of many minerals.

There are many intestinal diseases that inhibit the absorption of minerals.

This may lead to your cat growing weaker or having deficiencies. This can develop bone problems as well.

What you can do instead is to look for supplements that can help with mineral absorption and replace the mineral imbalance.

The great part about supplements:

They are easy to administer and your cat also gets their nutritional value when they are mixed in with food and other mediums.

After Nursing Kittens

If your cat has recently become a mom to beautiful kittens, she might require supplements to gain back her energy.

It can be exhausting to give birth to all mammals. It takes energy and as soon as one does, there are 4 to 6 kittens wanting milk.

Nursing cats may grow weaker during the period they have to feed her kittens.

Especially since kittens are growing and need a lot of milk!

Supplements are a great solution:

They will provide the mother with probiotics and necessary nutrients that help them regain strength.

This way your cat will feel more energized and can easily take care of her kittens without having to sacrifice their own well-being.

Supplements are even beneficial for cat breeders who want to keep their cats healthy and happy!

Take a trip to the vet and get your cat physically examined.

This way you would know about their health and what they might be lacking in!

It is also easier to combine supplements with their food and make sure they have a balanced diet that can help then recover.

How Can I Decide The Right Quantity of Supplements for My Cat?

If you are new to cat supplements it might be difficult to decide what is the right quantity for your cat.

What you can do in such cases is firstly take a trip to your local vet.

That helps how?

Your vet will inform you about the type of supplements your cat requires and apart from that educate you about how to administer them.

Some oils like salmon or hemp oil need a few drops depending on how concentrated there are.

Most supplements come with an instructional guide that you can go through.

This guide can tell you about your cat’s weight age and the right quantity to mix in with their food or administer on its own.

This is much more efficient and will allow you to safely provide your cat with supplements.

The weight will also guide you to have a low dosage of supplements in the beginning and allow your cat’s digestive system and metabolism to get used to it.

Once your cat is used to the product you can increase it to the ideal dosage.

When Should I Give Supplements to My Cat?

Another question cat owner asks themselves is when the ideal time is to give their cats supplements?


Supplementation is needed when their actual diet is not fulfilling enough in terms of nutrients.

Many dads indulgent eating store-bought cable which is not very nutritionally dense.

Your cats are not getting iron vitamins potassium magnesium calcium another essential nutrients out of this cable!

In fact, off the rack pet food, usually contains preservatives and additives that give it a longer shelf life!

This can be harmful to your pet in the long run.

If you notice your cat getting weaker or is showing signs of aging- it is essential that you add supplements to their diet.

Moreover, if your cat is nursing kittens or has had some sort of trauma or injury then supplementation is essential.

Supplements are very useful in helping them recover and regaining their strength!

Are Cats Supplements Safe?

Before you add any artificial nutrients to your cats’ diet, it is important to know whether or not they are safe.

All supplements undergo testing and controls before being mass-produced.

Ingredients have to be medical grade and approved by the FDA.

However, cats can be allergic to certain ingredients in a supplement as well. Try to introduce it to ingredients at first.

Examine the reaction of your pet. You can do this by inspecting their stool, to judge if their digestive tract is adjusting to the supplements.

Try increasing the dosage gradually instead of giving the supplement to them altogether.

It is recommended that you immediately stop with the supplement if your cat is not reacting to it well.

However, all of these supplements are lab formulated to be safe for pets.

Do Supplements have Side Effects?

All pharma grade ingredients do have some side effect or the other!

An excess of certain nutrients can cause digestion problems like diarrhea or constipation in your cat.

Usually, supplements come with an instructional guide on the proper dosage and the kind of side effects it can have.

If you are aware of what your cat is usually allergic to then you can discontinue the supplement.

For example:

Hemp seed oil is very beneficial as it helps with inflammation, pain management and treating skin allergies.

However, it can cause digestion problems in the pet which is why it is important to start slow!

If you notice that your pet is responding well to the supplement, then feel free to continue it until needed.

Related Questions

Do cats need vitamins?

Cats get all the vitamins they need from their food and usually do not require additional supplements. All you have to do is make sure they have a healthy balanced diet.

Can I give my cat human supplements?

Human supplements are concentrated and potent. In simpler words, they are meant for humans and might give your cat an excess of nutrients, which is not necessarily safe!

How can I get my sick cat to gain weight?

Supplements are a great way for your cat to gain weight. They help restore a nutritious deficiency in cats and start to gain weight.

Do indoor cats need vitamin D?

Cats do not make vitamin D from the sun as we do. Instead, they need Vitamin D from their diets. Their diets should contain fish which helps produce vitamin D.

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Nadine Oraby

My name is Nadine; I am a passionate writer and a pet lover. People usually call me by the nickname “Joy” because they think that I am a positive and joyful person who is a child at heart. My love for animals triggered me to create this blog. Articles are written by vets, pet experts, and me. Thanks for visiting. Your friend, Nadine!

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