Which dog food is better IAMS or blue buffalo
Iams vs. Blue Buffalo
Iams vs. Blue Buffalo
In this comparison article for Iams vs Blue Buffalo, we'll highlight the key differences between these two pet food brands. To properly compare Iams and Blue Buffalo, we'll use up-to-date nutritional and price information.
There are many factors to consider when choosing the best pet food brand for your pet. Factors such as ingredient quality, guaranteed analysis, product safety, brand history, and cost are among the most important factors to consider.
Throughout this Blue Buffalo vs Iams comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Iams Review Page or Blue Buffalo Review Page.
Guaranteed Analysis: Blue Buffalo vs. Iams
According to AAFCO, all pet food labels must provide a guaranteed analysis of nutrient content. The analysis must provide guaranteed minimum percentages of crude protein and crude fat, and maximum percentages of crude fiber and moisture.
All percentages used in this comparison are averages reported on a dry matter basis.
Iams Dog Food vs. Blue Buffalo Dog Food
Dry Dog Food | Iams | Blue Buffalo |
Crude Protein | 27.6% | 29.5% |
Crude Fat | 14.9% | 15.3% |
Crude Fiber | 5.2% | 6.8% |
Wet/Canned Dog Food | Iams | Blue Buffalo |
Crude Protein | 40.9% | 40.0% |
Crude Fat | 23.4% | 26.2% |
Crude Fiber | 5.4% | 7.4% |
Crude Protein Comparison For Dog Food
Protein is an extremely important part of your dog's diet. Without sufficient protein, dogs can develop a wide-range of serious health problems.
Both brands provide roughly the same amount of crude protein. With regards to wet dog food, Iams and Blue Buffalo also provide roughly the same amount of crude protein.
Crude Fat Comparison For Dog Food
Dietary fats serves a multitude of roles in the proper development and function of our canine companions. Here are some of the benefits (not exhaustive):
- Help produce prostaglandins, which reduce inflammation among other critical functions.
- Aid in the absorption of fat-soluble vitamins
- Improve skin and coat health
- Improve the palatially of your dog's food
As you can see, Iams and Blue Buffalo guarantee a similar amount of crude fat. For wet dog foods, Blue Buffalo typically provides a little more fat (about 2.83% more).
Iams and Blue Buffalo both provide roughly the same amount of crude fiber. With regards to wet dog food, Blue Buffalo and Iams also provide roughly the same amount of crude fiber.
Iams Cat Food vs. Blue Buffalo Cat Food
Dry Cat Food | Iams | Blue Buffalo |
Crude Protein | 35.7% | 37.5% |
Crude Fat | 15.9% | 16.8% |
Crude Fiber | 4.6% | 6.2% |
Wet/Canned Cat Food | Iams | Blue Buffalo |
Crude Protein | 46.7% | 45.8% |
Crude Fat | 21.8% | 24.3% |
Crude Fiber | 4.9% | 8.1% |
Crude Protein Comparison For Cat Food
Protein is an extremely important part of your cat's diet. Without sufficient protein, cats can develop a wide-range of serious health problems.
There is a relatively insignificant difference between the crude protein content of the two brands. With regards to wet cat food, Iams and Blue Buffalo also provide roughly the same amount of crude protein.
Crude Fat Comparison For Cat Food
There are many ways in which dietary fat contributes to the overall health of our feline friends. Here is a short list of benefits provided by fats (not exhaustive):
- Aid in the digestion and absorption of fat-soluble vitamins
- Improve the health of skin/coat
- Slow the growth of yeast infections
- Slow the development and spread of certain type of cancers.
- Maintain healthy blood pressure
Iams Pet Food Ingredients vs. Blue Buffalo Pet Food Ingredients
Iams and Blue Buffalo both use the following controversial ingredients in many of their products:
CaramelCaramel is a widely used natural food colorant. The concentrated form of caramel is typically listed as caramel color and has been linked to cancer in laboratory animals. Since our pets do not care about food color, caramel is an unnecessary addition with possible health risks.
Canola OilCanola oil is a plant-derived oil from the seeds of canola plants. Although fat is an essential component of any diet, canola oil is controversial in pet food. Proponents claim that canola oil provides a better fat profile in comparison to other plant based oils. However, opponents claim that canola oil is typically produced with genetically modified rapeseed and that rapeseed oil has multiple adverse health affects.
Pea ProteinPea protein is produced by removing the starchy parts of peas. Pea protein is considered controversial because it provides a substantial plant based protein boost. This boost is undesirable because plant based protein is typically lower in biological value when compared to meat based proteins.
Caramel ColorCaramel color is a concentrated form of caramel, a natural food colorant. Caramel color has been linked to cancer in laboratory animals. Since our pets do not care about food color, caramel color is an unnecessary addition with possible health risks.
Powdered CellulosePowdered cellulose is produced from minuscule pieces of wood pulp and plant fibers. Other than its fiber content, powdered cellulose lacks any nutritional contribution.
Dried Tomato PomaceDried tomato pomace is a by-product of tomato manufacturing. It's considered a controversial ingredient because many people believe it is an inexpensive low quality filler. However, tomato pomace provides a notable amount of dietary fiber, B vitamins, Lycopene, and vitamin A. Although it is a very inexpensive ingredient, it is not nutritionally empty.
Here are some of the controversial ingredients used only by Iams.
LiverLiver is a controversial ingredient because the source animal is not specified. Anonymous animal ingredients are typically very low quality and may contain almost any animal, including dogs and cats!
Beet PulpBeet pulp is the by-product which remains once sugar has been extracted from sugar beets. The primary contribution of beet pulp is dietary fiber.
We'd also like to note that beet pulp is fairly controversial in pet food. Proponents claim that beet pulp can promote intestinal health and regulate blood sugar. However, opponents claim that beet pulp is an inexpensive filler.
Corn MealCorn meal is another name for ground corn. Corn is a cereal grain which provides a modest amount of vitamins, minerals, and plant based protein. It also happens to be one of the most controversial ingredients in pet food.
Proponents of corn claim that corn is highly digestible and an excellent source of protein, energy, vitamins, minerals, and essential fatty acids.
Opponents however believe that positive claims in regards to corn are either half-truths or completely false, we'll discuss a few of the opposing arguments.
In regards to digestibility, the claims of "highly digestible" are only true if corn is processed into a meal or flour and subsequently cooked. In regards to the protein contribution, we must note that corn is a plant based protein which does not contain all of the necessary amino acids required by pets to sustain life. Therefore substituting corn for meat is an unsuitable substitution and actually degrades the overall protein quality of the product.
Finally, we'll discuss the claims about vitamins and minerals in corn. Although corn does provide many vitamins and minerals, it not necessarily an exceptional ingredient in this regards. There are many other ingredients which are more complete and biologically appropriate. Therefore the usage of corn as the primary ingredient in pet food should certainly warrant further questioning.
Corn GritsCorn grits are made from ground corn. Corn is a cereal grain which provides a modest amount of vitamins, minerals, and plant based protein. It also happens to be one of the most controversial ingredients in pet food.
Proponents of corn claim that corn is highly digestible and an excellent source of protein, energy, vitamins, minerals, and essential fatty acids.
Opponents however believe that positive claims in regards to corn are either half-truths or completely false, we'll discuss a few of the opposing arguments.
In regards to digestibility, the claims of "highly digestible" are only true if corn is processed into a meal or flour and subsequently cooked. In regards to the protein contribution, we must note that corn is a plant based protein which does not contain all of the necessary amino acids required by pets to sustain life. Therefore substituting corn for meat is an unsuitable substitution and actually degrades the overall protein quality of the product.
Finally, we'll discuss the claims about vitamins and minerals in corn. Although corn does provide many vitamins and minerals, it not necessarily an exceptional ingredient in this regards. There are many other ingredients which are more complete and biologically appropriate. Therefore the usage of corn as the primary ingredient in pet food should certainly warrant further questioning.
Iron OxideIron oxide is an FDA approved natural food coloring agent. It's commonly found in rusting metal and provides a reddish-brown color.
We believe food colorants are unnecessary ingredients in pet food. Other than potential harm, food colorants do not provide any nutritional value. These type of ingredients are used only to make the food look appealing to humans.
Fish DigestFish digest is the result of undecomposed fish tissue after hydrolysis, a chemical reaction. It is typically used as flavoring to improve taste. Fish digest is considered by many as an undesirable low-quality ingredient.
Ground CornGround corn is a cereal grain which provides a modest amount of vitamins, minerals, and plant based protein. It also happens to be one of the most controversial ingredients in pet food.
Proponents of corn claim that corn is highly digestible and an excellent source of protein, energy, vitamins, minerals, and essential fatty acids.
Opponents however believe that positive claims in regards to corn are either half-truths or completely false, we'll discuss a few of the opposing arguments.
In regards to digestibility, the claims of "highly digestible" are only true if corn is processed into a meal or flour and subsequently cooked. In regards to the protein contribution, we must note that corn is a plant based protein which does not contain all of the necessary amino acids required by pets to sustain life. Therefore substituting corn for meat is an unsuitable substitution and actually degrades the overall protein quality of the product.
Finally, we'll discuss the claims about vitamins and minerals in corn. Although corn does provide many vitamins and minerals, it not necessarily an exceptional ingredient in this regards. There are many other ingredients which are more complete and biologically appropriate. Therefore the usage of corn as the primary ingredient in pet food should certainly warrant further questioning.
Brewers RiceBrewer's rice is the small fragments of rice kernel that are separated from the larger kernels of milled rice. The fragments do not contain the same nutrition profile of the whole kernel and therefore brewer's rice is a lower quality grain. Brewer's rice is typically regarded as an inexpensive and low quality filler.
Wheat GlutenWheat gluten is the main protein of wheat. Although wheat gluten is mostly protein, wheat gluten is considered controversial because it significantly boosts the protein content of the product. This is undesirable because plant based protein does not provide the same amino acid profile as meat based protein.
Vegetable OilSpecific vegetable oils are typically positive ingredients; however, this ingredient does not specify which vegetable(s) were used to produce the oil.
Without this information, it is impossible for us to make any specific statements. With any fat source, it is important to know the omega-3 to omega-6 fatty acid ratio, a property which cannot be determined with this ingredient. Thus, we have marked vegetable oil as a controversial ingredient.
Feeding OatmealAccording to AAFCO, feeding oatmeal "is obtained in the manufacture of rolled oat groats or rolled oats". It contains "broken oat groats, oat groat chips, and floury portions of the oat groats." In other words, feeding oatmeal is an inexpensive by-products of rolled oat processing.
Poultry GibletsPoultry giblets includes the heart, liver, gizzards, and other internal organs of poultry. Organs are nutritiously dense ingredients which provide high quality protein and fat. However, this particular ingredient is considered an anonymous meat ingredient because the type of poultry is not specified. In order words, "named" giblets such as chicken giblets or turkey giblets are preferred over poultry giblets.
Corn Gluten MealCorn gluten meal is a by-product from the production of various corn products (corn starch, corn syrup, etc). It's very high in protein (nearly 60% protein) and therefore can significant boost the protein content of the product. Because plant based proteins such as corn gluten meal are inferior to meat based proteins (lack many essential amino acids), they are not suitable substitutes.
Meat By-ProductsBy-products are defined by AAFCO as the "non-rendered, clean parts, other than meat, derived from slaughtered mammals." Thus, meat by-products contain nearly all parts of the animal which are typically not consumed by humans. These parts include the liver, lung, spleen, kidney, stomach, blood, intestine, bone, etc.
This ingredient is marked controversial because the meat source is not identified. Anonymous ingredients such as meat by-products are typically very low quality additions. The most unpleasing property of this ingredient is that the animal source can contain any mammal, even dogs & cats.
Chicken By-ProductsBy-products are defined by AAFCO as the "non-rendered, clean parts, other than meat, derived from slaughtered mammals." Thus, chicken by-products contain nearly all parts of the chicken which are typically not consumed by humans. These parts include the liver, lung, spleen, kidney, stomach, blood, intestine, bone, etc.
Like other meat by-products, chicken by-products are considered controversial, mainly because they are inexpensive ingredients which consumers have equated with slaughterhouse waste. However, manufactures and many experts claim that animal by-products are unjustly criticized. Proponents state that "named" by-products, such as chicken by-products, supply many important nutrients required by pets.
Dried Meat By-ProductsBy-products are defined by AAFCO as the "non-rendered, clean parts, other than meat, derived from slaughtered mammals." Thus, dried meat by-products contain nearly all parts of the animal which are typically not consumed by humans. These parts include the liver, lung, spleen, kidney, stomach, blood, intestine, bone, etc.
This ingredient is marked controversial because the meat source is not identified. Anonymous ingredients such as dried meat by-products are typically very low quality additions. The most unpleasing property of this ingredient is that the animal source can contain any mammal, even dogs & cats.
Chicken By-Product MealChicken by-product meal is produced by cooking chicken by-products using a process called rendering. By-products are defined by AAFCO as the "non-rendered, clean parts, other than meat, derived from slaughtered mammals." Thus, chicken by-products contain nearly all parts of chickens which are typically not consumed by humans. These parts include the liver, lung, spleen, kidney, stomach, blood, intestine, bone, etc.
Like other meat by-products, chicken by-products are considered controversial, mainly because they are inexpensive ingredients which consumers have equated with slaughterhouse waste. However, manufactures and many experts claim that animal by-products are unjustly criticized. Proponents state that "named" by-products, such as chicken by-products, supply many important nutrients required by pets.
Ground Whole Grain CornGround whole grain corn contains the entire corn kernel (the germ, bran, and endosperm). Corn is a cereal grain which provides a modest amount of vitamins, minerals, and plant based protein. It also happens to be one of the most controversial ingredients in pet food.
Proponents of corn claim that corn is highly digestible and an excellent source of protein, energy, vitamins, minerals, and essential fatty acids.
Opponents however believe that positive claims in regards to corn are either half-truths or completely false, we'll discuss a few of the opposing arguments.
In regards to digestibility, the claims of "highly digestible" are only true if corn is processed into a meal or flour and subsequently cooked. In regards to the protein contribution, we must note that corn is a plant based protein which does not contain all of the necessary amino acids required by pets to sustain life. Therefore substituting corn for meat is an unsuitable substitution and actually degrades the overall protein quality of the product.
Finally, we'll discuss the claims about vitamins and minerals in corn. Although corn does provide many vitamins and minerals, it not necessarily an exceptional ingredient in this regards. There are many other ingredients which are more complete and biologically appropriate. Therefore the usage of corn as the primary ingredient in pet food should certainly warrant further questioning.
Poultry By-Product MealPoultry by-product meal is a controversial ingredient because the source animal is not specified. Anonymous ingredients such as poultry by-product meal are typically low-quality ingredients in comparison to named protein by-product meals (e.g. chicken by-product meal, turkey by-product meal, duck by-product meal).
Animal Fat (Preserved With Mixed Tocopherols)Animal fat is a by-product of tissue rendering. The source animal is not specific and therefore we cannot be certain that the source does not include diseased animals or even euthanized dogs and cats.
Poultry Fat (Preserved With Mixed Tocopherols)Poultry fat is a by-product of poultry tissue rendering. Poultry fat is a controversial ingredient because the specific protein is not specified. Such ingredients are typically low-quality in comparison to named poultry fats (e.g. chicken fat, turkey fat).
Here are some of the controversial ingredients used only by Blue Buffalo.
GarlicGarlic in very small quantities can be an acceptable addition, however, garlic can also be toxic. Therefore many pet owners choose to completely avoid garlic.
Tomato PomaceTomato pomace is a by-product of tomato manufacturing. It's considered a controversial ingredient because many people believe it is an inexpensive low quality filler. However, tomato pomace provides a notable amount of dietary fiber, B vitamins, Lycopene, and vitamin A. Although it is a very inexpensive ingredient, it is not nutritionally empty.
We believe that certain pet food ingredients are linked to adverse health affects; these ingredients are classified as harmful.
Here are some of the harmful ingredients used only by Iams.
Blue 2Blue 2 is an artificial dye which can increase the likelihood of tumors according to the Center for Science in the Public Interest. Like other dyes, blue 2 does not provide any nutritional value.
Red 40Red 40 is the most widely used artificial dye in consumer goods. Studies have shown that red 40 may accelerate the appearance of immune-system tumors in mice, cause allergy-like reactions and trigger hyperactivity in children.
Yellow 5Yellow 5 is an artificial dye which may be contaminated with several cancer-causing chemicals. Like other dyes, yellow 5 does not provide any nutritional value.
Yellow 6Yellow 6 is an artificial food dye which may be contaminated with cancer-causing chemicals. According to the Center For Science In The Public Interest, yellow 6 can cause adrenal tumors in animals.
Added ColorThe ingredient "added color" is ambiguous and may include various artificial dyes. Most artificial dyes have been linked to various chronic diseases.
Menadione Sodium Bisulfite ComplexMenadione sodium bisulfite complex is a synthetic version of vitamin K that has been linked to many health concerns. Research has suggested possible toxic reactions in liver cells and red blood cells among other serious problems. In fact, one large chemical supplier warns, "The substance is toxic to kidneys, lungs, liver, mucous membranes. Repeated or prolonged exposure to the substance can produce target organs damage."
Here are some of the harmful ingredients used only by Blue Buffalo.
Menadione Sodium Bisulfate ComplexMenadione sodium bisulfate complex is a synthetic version of vitamin K that has been linked to many health concerns. Research has suggested possible toxic reactions in liver cells and red blood cells among other serious problems. In fact, one large chemical supplier warns, "The substance is toxic to kidneys, lungs, liver, mucous membranes. Repeated or prolonged exposure to the substance can produce target organs damage."
Product Safety: Recall History of Iams & Blue Buffalo?
Iams has been recalled 2 times.
- Aug. 14, 2013: Salmonella
- July 30, 2010: Salmonella
Blue Buffalo has been recalled 9 times.
- Nov. 25, 2015: Salmonella
- Nov. 6, 2015: Presence of Propylene Glycol
- May 31, 2016: Mold
- March 18, 2017: elevated beef throid hormone
- Feb. 14, 2017: presence of aluminum
- March 3, 2017: Foil Seal Packaging Problem
- Oct. 8, 2010: toxic levels of vitamin D
- April 19, 2007: Melamine
- April 26, 2007: Melamine
Price Comparison: Which Brand Is More Expensive?
Dry Dog Food | Iams | Blue Buffalo |
Per Pound | $1.52 | $3.42 |
Per Calorie | $0.0009 | $0.0021 |
Dry Cat Food | Iams | Blue Buffalo |
Per Pound | $2.03 | $5.07 |
Per Calorie | $0.0012 | $0.0031 |
Wet Dog Food | Iams | Blue Buffalo |
Per Pound | $1.90 | $5.09 |
Per Calorie | $0.0038 | $0.0100 |
Wet Cat Food | Iams | Blue Buffalo |
Per Pound | $6.97 | $7.50 |
Per Calorie | $0.0151 | $0.0153 |
The average cost-per-lb is heavily influenced by the varying amounts of moisture present in each brand's food products (wet vs. dry food, dry vs. freeze-dried food, etc). However, the average cost-per-kcal eliminates the influence of moisture. Therefore, the average cost-per-kcal is the better metric to consider.
If you'd like to calculate the average cost-per-day or cost-pet-year of feeding Iams or Blue Buffalo, input your pet's weight into our cost analyzer widget.
Averages price data can identify whether or not there exists a significant price difference between two brands. However, the actual price that you'll pay for Iams or Blue Buffalo will depend on your shopping habits.
Pet owners who use our price comparison feature typically save more than 25% off retail prices for Iams and Blue Buffalo. In addition, we currently have some great coupons for our readers.
Disclosure: PawDiet has an affiliate relationship with stores featured (or linked-to) in this article. We are compensated for referring customers. Thank you for shopping with our retail partners!
Where To Buy Iams Pet Foods
You can purchase Iams pet foods from the following stores:
33 Recipes In-Stock Today
15 Recipes In-Stock Today
24 Recipes In-Stock Today
Where To Buy Blue Buffalo Pet Foods
You can purchase Blue Buffalo pet food products from these retailers:
281 Recipes In-Stock Today
135 Recipes In-Stock Today
262 Recipes In-Stock Today
14 Recipes In-Stock Today
Type Of Pet Foods Available
Product | Iams | Blue Buffalo |
Dry Dog Food | 24 Recipes | 93 Recipes |
Wet Dog Food | 8 Recipes | 94 Recipes |
Dog Treats | None | 50 Treats |
Dry Cat Food | 13 Recipes | 42 Recipes |
Wet Cat Food | 13 Recipes | 59 Recipes |
Cat Treats | 2 Treats | 16 Treats |
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