In this comparison article for Nulo vs Authority, we'll highlight the key differences between these two pet food brands. To properly compare Nulo and Authority, 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 Authority vs Nulo comparison, we've utilized average data to make general comparisons. If you'd like to see individual product reviews, visit our Nulo Review Page or Authority Review Page.
Guaranteed Analysis: Authority vs. Nulo
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.
Nulo Dog Food vs. Authority Dog Food
Dry Dog Food
Nulo
Authority
Crude Protein
35.7%
28.9%
Crude Fat
19.6%
14.5%
Crude Fiber
5.1%
4.8%
Wet/Canned Dog Food
Nulo
Authority
Crude Protein
45.6%
41.4%
Crude Fat
31.4%
22.8%
Crude Fiber
5.5%
8.3%
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.
Our analysis shows that Nulo guarantees 6.85% more protein than Authority dry dog food recipes. In addition, Nulo wet dog foods also provide more protein than Authority wet foods.
Crude Fat Comparison For Dog Food
Fats are an absolutely vital component of a balanced canine diet. Not only do fats provide energy, but they also serve important roles in the normal development and function of your dog's body. For example, fats help dogs produce prostaglandins, which reduce inflammation among many other significant functions.
There is a relatively large difference between the fat content of Nulo and Authority. On average, Authority dry dog food recipes contain 5.10% less fat than Nulo recipes. In addition, Nulo wet dog foods also provide more fat than Authority wet foods.
Authority and Nulo both provide roughly the same amount of crude fiber. For wet dog foods, Authority typically provides a little more fiber (about 2.79% more).
Nulo Cat Food vs. Authority Cat Food
Dry Cat Food
Nulo
Authority
Crude Protein
44.3%
36.9%
Crude Fat
20.0%
15.4%
Crude Fiber
5.0%
6.0%
Wet/Canned Cat Food
Nulo
Authority
Crude Protein
53.3%
43.8%
Crude Fat
24.2%
23.6%
Crude Fiber
4.6%
9.2%
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.
Authority dry recipes contain 7.42% less protein than Nulo dry recipes. This difference in protein content is a notable difference between Nulo and Authority. In addition, Nulo wet cat foods also provide more protein than Authority wet foods.
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):
Fats help with the digestion and absorption of fat-soluble vitamins
Reduce inflammation associated with arthritis
Slow the growth of yeast infections
Prevent or reduce the likelihood of certain heart problems.
Aid in the development of the retina and visual cortex.
The table shows that Authority provides far less fat than Nulo. The difference in fat content is roughly 4.59%. For wet cat foods, Nulo and Authority provide roughly the same amount of fat.
There is a relatively insignificant difference between the crude fiber content of the two brands. For wet cat foods, Authority provides more fiber (about 4.60% more).
Nulo Pet Food Ingredients vs. Authority Pet Food Ingredients
Nulo and Authority both use the following controversial ingredients in many of their products:
Powdered Cellulose
Powdered Cellulose
Powdered cellulose is produced from minuscule pieces of wood pulp and plant fibers. Other than its fiber content, powdered cellulose lacks any nutritional contribution.
Here are some of the controversial ingredients used only by Nulo.
Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)
Canola Oil (Preserved With Mixed Tocopherols And Citric Acid)
Canola 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.
Here are some of the controversial ingredients used only by Authority.
Corn
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.
Wheat
Wheat
Wheat is regarded as an inexpensive and low-quality filler in pet food. However, wheat does provide plant-based protein and makes pet food more affordable for consumers. It's important to note that plant based protein does not provide the same amino acid profile as meat based protein.
Caramel
Caramel
Caramel 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.
Beet Pulp
Beet Pulp
Beet 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.
Canola Oil
Canola Oil
Canola 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.
Corn Syrup
Corn Syrup
Corn syrup is made from corn starch and it's typically used as a thickener, sweetener, and humectant (keeps the product moist). It's considered controversial because it can raise a pet's blood sugar to unhealthy levels. Of course this concern may be nullified if the syrup is used in very small quantities.
Ground Corn
Ground Corn
Ground 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.
Pea Protein
Pea Protein
Pea 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.
Animal Liver
Animal Liver
Animal liver 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!
Brewers Rice
Brewers Rice
Brewer'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.
Ground Wheat
Ground Wheat
Ground wheat is regarded as an inexpensive and low-quality filler in pet food. However, wheat does provide plant-based protein and makes pet food more affordable for consumers. It's important to note that plant based protein does not provide the same amino acid profile as meat based protein.
Poultry Meal
Poultry Meal
Poultry meal is a controversial ingredient because the source animal is not specified. Anonymous ingredients such as poultry meal are typically low-quality ingredients in comparison to named protein meals (e.g. chicken meal, turkey meal, duck meal).
Wheat Gluten
Wheat Gluten
Wheat 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.
Caramel Color
Caramel Color
Caramel 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.
Garlic Powder
Garlic Powder
Garlic powder in very small quantities can be an acceptable addition, however, garlic can also be toxic. Therefore many pet owners choose to completely avoid garlic.
Vegetable Oil
Vegetable Oil
Specific 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.
Corn Gluten Meal
Corn Gluten Meal
Corn 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.
Refined Corn Syrup
Refined Corn Syrup
Refined corn syrup is made from corn starch and it's typically used as a thickener, sweetener, and humectant (keeps the product moist). It's considered controversial because it can raise a pet's blood sugar to unhealthy levels. Of course this concern may be nullified if the syrup is used in very small quantities.
Dried Garlic Powder
Dried Garlic Powder
Dried garlic powder in very small quantities can be an acceptable addition, however, garlic can also be toxic. Therefore many pet owners choose to completely avoid garlic.
Dried Tomato Pomace
Dried Tomato Pomace
Dried 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.
Soybean Protein Concentrate
Soybean Protein Concentrate
Soybean protein concentrate is produced by removing the water soluble carbohydrates from soybeans. The inclusion of non-meat protein typically degrades the overall quality of protein in the recipe. This degradation is due to the inferior amino acid profile of plant based proteins.
Canola Oil (Preserved With Mixed Tocopherols)
Canola Oil (Preserved With Mixed Tocopherols)
Canola 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.
We believe that certain pet food ingredients are linked to adverse health affects; these ingredients are classified as harmful.
Nulo and Authority both use the following harmful ingredients in many of their products:
Menadione Sodium Bisulfite Complex
Menadione Sodium Bisulfite Complex
Menadione 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 Authority.
Corn Oil
Corn Oil
Corn oil is extracted from the germ of corn kernels. It contains an omega-6 to omega-3 fatty acid ratio of 49:1. Corn oil's unfavorable omega-6 to omega-3 fatty acid ratio makes it an undesirable ingredient. Consumption of such ingredients can lead to an array of health problems in both animals and humans.
Propylene Glycol
Propylene Glycol
Proplyene glycol is an artificial preservative which has been banned by the FDA for use in cat food. Unfortunately, proplyene gycol is approved for use in dog food. Studies have linked proplyene glycol to heinz body anemia, a blood disorder.
Product Safety: Recall History of Nulo & Authority?
According to our records, neither brand has issued any product recalls. Therefore, consumers have no reason to question the safety of Nulo or Authority pet food products.
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 Nulo Pet Foods
You can purchase Nulo pet foods from the following stores:
78 Recipes In-Stock Today
34 Recipes In-Stock Today
42 Recipes In-Stock Today
23 Recipes In-Stock Today
Where To Buy Authority Pet Foods
You can purchase Authority pet food products from these retailers:
