IAMS vs Science Diet Cat Food

Recently got a cat? A cat can be a perfect pet that anyone of us would like to have. They can be the sweetest and craziest pets in the house, and surely, you want to have one. However, it is your responsibility to make sure that they will have a perfect diet that can keep up with their overall needs and well being.

When you are looking for the right meal, you’ll encounter a long list of names to choose from which will claim to be the best on the market. Some of the common names that you will find are IAMS and Hill’s Science. Both companies are well known for their quality meals and would be able to give you a lot of options for your cat.

However, it is ideal to still be familiar with IAMS cat food vs Science diet cat food and have a short background on their capabilities and experiences over the years. Each of them may have a different lineup of meals depending on the needs of your cats, so it is important to have better knowledge on this.


IAMS vs Science Diet Cat Food Comparison Table

NameMain IngredientsProteinFatFiberPricing
Hill’s Science Diet Urinary and Hairball Control Cat FoodChicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Powdered Cellulose, Wheat Gluten34%19.4%9%Click Here
IAMS Proactive Health Original Dry Cat FoodChicken, Chicken By-Product Meal, Corn Meal, Corn Grits, Dried Beet Pulp, Natural Flavor32%15%3%Click Here
IAMS Healthy Naturals Dry Cat Food for AdultsChicken, Chicken Meal, Brewers Rice, Ground Whole Grain Sorghum, Ground Whole Grain Barley 33%15%4%Click Here
IAMS Healthy Kitten Grain-Free Wet Cat FoodChicken, Chicken Broth, Chicken Liver, Dried Egg Product, Guar Gum, Added Color9.5%5%1%Click Here
IAMS Proactive Health Oral Care Chicken Dry Cat FoodChicken, Chicken By-Product Meal, Corn Meal, Corn Grits, Dried Beet Pulp, Natural Flavor32%15%4%Click Here
Hill’s Science Diet Indoor Cat FoodChicken, Whole Grain Wheat, Corn Gluten Meal, Pork Fat, Chicken Meal, Dried Beet Pulp34.7%21.9%1.7%Click Here
Hill’s Science Diet Adult Oral CareChicken, Brown Rice, Corn Gluten Meal, Chicken Fat, Powdered Cellulose, Wheat Gluten33.4%21.9%8.9%Click Here
Hill’s Science Adult Sensitive Stomach and Skin Cat FoodBrewers Rice, Corn Gluten Meal, Pork Fat, Pork Meal, Egg Product, Whole Grain Corn34.5%22%1.2%Click Here

Are you worrying about the urinary health of your cats and also their hairball? Cat owners that would focus more on these issues with their cats may be interested in getting Hill’s Science Diet Urinary and Hairball Control Cat Food. This formula was created in order to support the urinary system of your cats and offer a high level of magnesium.

This is efficient for cats that are experiencing urinary tract problems and is prone to hairball formation. Hairballs is a common problem that can worsen if not considered and treated properly. Good thing, this meal comes with a natural fiber that can help in reducing the risk of hairballs.

It comes with completely natural ingredients, minerals, vitamins and the right amount of amino acids for the overall needs of your cats. There would be no artificial flavors, preservatives, and colors added to this product.


  • It supports the overall health of your cat.
  • It is designed to help in reducing hairball.
  • It can help avoid urinary tract problems.
  • There are no artificial flavors, colors, and preservatives added.


  • There are rare cases of cats throwing up from this meal.
  • Some cat owners complained about the change in the product.

Are you in search for meals that is highly recommended for your adult cats? If yes, then this is the perfect choice for you! The formula offers the right quality of nutrients that your cat needs through various ingredients including brown rice and barley. It helps in maintaining the overall health of your cat while promoting growth and development at the same time.

The recipe is safe for your cats and there are no additives nor by-products added. Most veterinarians would recommend this to their customers guaranteeing you the overall benefits that it can offer to your cats. It is ideal for cats that have problems with their stomach as it is easily digestible and is very gentle on their stomach.

The dry cat food is offered in a variety of recipes and meals, so it would be easier for you to find one that best suits the condition and needs of your cat.


  • There’s a variety of recipes to choose from.
  • It is highly digestible and gentle on your cat’s stomach.
  • It comes with high protein sources for complete nutrients.
  • There are no fillers and additives.


  • There are cats that can be allergic to the grain content.
  • It is not recommended for older cats.

Another one on our list is the IAMS Healthy Naturals Dry Cat Food for Adults. Our cats may require protein as they are meat eaters by nature and would eat chicken, ducks and fish, and others. We need to discover a meal that is like it and one that comes with the correct supplements they require.

The IAMS Healthy Naturals Dry Cat Food for Adults is a solid product that utilizes the use of genuine chicken as the number one ingredient. Indeed, it is conceivable without any additives, fillers and comes with different flavors that would perhaps make your cat's stomach full.

It offers a high level of protein that is adequate for the development of your cats. It is additionally accompanied with cancer prevention agents and vitamin E that would help in supporting their immune system. It also has healthy grains and rice that gives your cat a chance to have enough vitality.


  • It doesn't have any fillers nor any additives.
  • It promotes a stronger immune system to your cats.
  • It makes use of genuine chicken as the fundamental ingredient.
  • It is a complete meal for your cats.


  • It contains grains.

As they start to grow older, cats would start to have problems with their dental health. There are tartars and plaque that would start to build up and may cause problems on their teeth. This can also result in them having a bad breath and other oral issues.

The company knows this more than anything and offered another specialized formula, Hill’s Science Diet Adult Oral Care. The Hill’s Science Diet Adult Oral Care is formulated to help cats in having a balanced nutrition while maintaining their dental health and avoiding further problems.

It greatly features high fiber technology for freshening the breath of your cats and cleaning their teeth. Overall, the quality of ingredients used are all natural and it can be tasty for the cats.


  • It is designed to keep healthier teeth for your cats.
  • It comes with a balanced nutrition.
  • It offers an antioxidant blend that can support the immune system of your cat.
  • There are no flavors, artificial colors, and preservatives added.


  • The size of the kibbles can be too big for some cats.
  • There are cats that hate the taste of it.

One of the most common problems of many cat owners is the plaque and tartar formation on their cat’s teeth. There are some owners that would choose to ignore it, but this can get worse if you will not check and offer them the right meal. For better protection, you can try and use IAMS Proactive Health Oral Care Chicken Dry Cat Food.

The IAMS Proactive Health Oral Care Chicken Dry Cat Food is designed with kibbles that offers unique texture and shape. This is efficient to easily maintain the health of your cats. It also has additional calcium content that lets them have stronger bones and teeth.

Just like the other food on the list, it makes use of chicken, and it can offer the right level of protein to fit their needs. It comes with other supplements that your cat needs like vitamins, minerals that promotes the overall health of cats.


  • It is recommended for cats that have tartars.
  • It helps in cleaning the teeth of your cats.
  • There is additional calcium to help in keeping their bones and teeth stronger.
  • This is ideal for cats of all ages.


  • Some cat owners notice that the coat of their cats become dull.
  • There are cats that don’t like the smell of it.

One of the most popular meals from the company is the Hill’s Science Diet Indoor Cat Food. It is a highly rated meal from the company that is recommended for the early years of your cat. It focuses on the great needs of your cats and is a perfect choice to maintain a healthier lifestyle.

It comes with other nutrients that would help in nourishing the coat and skin of your cat, as well as omega-6 fatty acids to have the maximum nutrients. Aside from that, it comes with antioxidant blends that can help in boosting their immune system.

The ingredients are easily digestible and there are no artificial flavors and colors added. This is recommended for indoor cats that have less activities, but still need complete nutrition.


  • It offers complete nutrition for your cat’s needs.
  • It doesn’t have artificial colors and flavors.
  • It is the number one choice of many veterinarians.
  • It is recommended for the early years of your cats.


  • Some cats won’t find it appetizing.

Most of the cats today have several problems and have a sensitive stomach. It is a common issue, but a proper diet and meal would make a big difference. One of the best meals that you can try out for your cats’ needs is the Hill’s Science Adult Sensitive Stomach and Skin Cat Food. This is a special meal that was created to help cats with sensitive stomachs.

It helps in improving the skin and coat of your cats and lets them digest foods easily. This is important, so it would promote a better digestion and avoid the risk of a sensitive stomach. It contains all the complete nutrient that your cats need.

There are no artificial flavorings added just like the other meal on our list. It is greatly recommended for adult cats. For nursing cats and kittens, it would be best to find an alternative meal for better results.


  • It is greatly recommended for cats that are suffering from the sensitive stomach.
  • It helps in improving the skin and coat of your cats.
  • It comes with complete ingredients and nutrition that your cat needs.
  • There are no artificial flavorings added.


  • It is not recommended for nursing cats and kittens.
  • It has a high amount of carbohydrates.

Do you have newborns or young cats in the house? You are probably looking for a healthier meal that could support their overall welfare. One of the highly recommended meals for a kitten that you can try out is the IAMS Healthy Kitten Grain-Free Wet Cat Food. It is designed to provide the right nutrients that your kitten requires.

There are no grains added and it is a complete meal to help with the development of your kitten. It also comes with other essential minerals that could support the immune system of your cats. It contains DHA that would promote the development of the brain.

Kittens can be prone to diseases and a more sensitive stomach, and this meal is ideal because it is easily digestible and is tender for your cats.


  • There are no artificial flavors and grains added.
  • It is a well-balanced meal for your kittens.
  • It comes with vitamin E and DHA.
  • This is ideal for a kitten that can easily develop health problems.


  • Some cats would not be interested in the taste of it.
  • You have to check the overall ingredients for the safety of newborn cats.

IAMS a Short Background and History

The organization has been serving a lot of pet owners for a long time. The first meal they have created was made in the 1940's. The fundamental objective of the organization is to offer and make an unrivaled nature of cat meals that would improve their general health and wellbeing. They claim to offer the most noteworthy ingredients and guarantee the wellbeing of your cats.

Their formulas are intended to help cats in boosting their immunity system, keeping up slender muscles, advances digestion and absorption, consumes fat effortlessly, and decrease the building up of tartars. They have made formulas for the necessities of the cats and have maintained strategic meals to manage more health problems. They help cat owners in supporting their cats through high-quality meals.

Regardless of being known as a different brand, IAMS is entirely being worked by family brands of Mars Petcare. This may incorporate other brands including Pedigree, Whiskas, and others.

IAMS Food Recalls

Throughout the years, there are various genuine reviews that IAMS have gotten and it is critical to remember. Some of those may include the following:

  • FDA issues an obligatory review last March 2007 for their wet cat nourishment foods in light of potential pollution of melamine. This includes products such as IAMS kitten slices, select bites, flakes, and others.
  • For three months of 2010 (June, July, and August), FDA issues another compulsory review for different reasons. To begin with is for the low levels of thiamin from their kitten formula. Second and third for the potential tainting of the Salmonella microbes on their veterinary recipes and indoor weight control.
  • For the year 2011 and 2013, they have gotten yet another review for their products because of growth and contamination of molds and other microorganisms such as aflatoxins, and salmonella bacteria.

Hills Science Diet a Short Background and History

From their name itself, the company focuses on meals that are produced and manufactured based on scientific studies. They have started in 1948 and offers food for pets. Dr. Morris had spent a lot of time in producing a perfect meal that can help pets with their needs, and thus have been known because of the quality of ingredients used and the number of benefits that it can offer.

Their meals are currently being sold in over 86 countries worldwide. They offer high-quality meals that would help in balancing the nutrition of your cats. They follow exceptional standards for their quality control to ensure the quality of meals that they offer.

They implement frequent inspections and they create meals that is based on the specific needs of the cats. Most of our cats have their sensitivities, and so the company created a line of cat food that would be able to help pet owners regarding this concern.

Hills Science Diet Food Recalls

For the past years, the company had received multiple recalls because of various reasons. Some of the most notable recalls includes the following:

  • In the year 2007, the company was included as one of the 40 brands noted by FDA to offer meals that possibly have melamine.
  • A potential salmonella contamination was reported on their dog foods in Hawaii, Nevada, and California in June 2014.
  • The most recent one was on November 2015. Due to labeling issues, some of their canned goods were pulled out on the market. There are no problems with the meals, but wrong labels should be carefully checked.

The Round Up

When looking for answers to the best cat meal, it would still depend on the condition and the needs of your cats. While both companies claim to offer quality meals that your cat needs, you still need to check if your cat would like to have a taste of it since some cats can be fussy eaters at times. Rest assured, you can sample a few products at first to see if your cats would like it or not. There could be a lot of people talking about Taste of the Wild vs Blue Buffalo cat food, but your cats’ need will still decide what is best for them.

Rebecca Welters

Yes, I am that weird cat lady with 200 cats and live in the darkest corner of the city where no one dares to go! Joking! But I am a cat lover and have 2 Ragdoll cats called Toby, he's 3 years old and Dory, she's 8 years old. I'm 36 years old and live in the quiet town of Washington.

Click Here to Leave a Comment Below 0 comments

Leave a Reply: