Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food Review

//Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food Review

Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food Review

Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food

Hill's Science Diet Adult Advanced Fitness Original Dry Dog Food
Hill’s Science Diet Adult Advanced Fitness Original is a dry dog food. It offers correctly balanced nutrition. This dog food uses high quality meat sources of protein like whole chicken and chicken meal.

Fiber from dried beet pulp and oats included in Hill’s Science Diet Adult contributes to a healthy digestive system. Pork fat, soybean oil and flaxseeds supply omega 3 and omega 6 fatty acids to overall skin and coat health.

This dog food contains essential nutrients and antioxidants to maintain overall health and a strong immune system.

Dog Food Analysis

  • Protein: Chicken, corn gluten meal, chicken meal
  • Fat and Oil: Pork fat, soybean oil
  • Carbohydrates: Whole grain wheat, whole grain sorghum, whole grain corn, brewers rice
  • Fiber: Brewers rice, dried beet pulp, oat fiber, flaxseed
  • Fruits and vegetables: dried apples, dried broccoli, dried carrots, dried cranberries, dried peas
  • Flavorings: Chicken liver flavor, natural flavors
  • Preservatives: Mixed tocopherols
  • Sweeteners: absent
  • Dyes: absent
  • Supplements and minerals: Lactic Acid, Potassium Chloride, Iodized Salt, Choline Chloride, Calcium Carbonate, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Folic Acid, Vitamin D3 Supplement), minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), Taurine, Phosphoric Acid, Beta-Carotene

Yellow ingredients represent controversial or low quality sources. Consult our nutrient detailed analysis and find out why.

Nutrient Analysis

Column 1 Dry Matter Basis
Protein 24.6 %
Fat 16.1 %
Fiber 2 %
Carbohydrates 52.1 %

On a dry matter basis, this food is formulated to assemble the nutritional levels established by the AAFCO.

This food includes reasonable amounts of protein and fat, with a combination of animal and plant- proteins. It has a very high percentage of carbohydrates.

Detail Ingredient Analysis

Protein: Chicken is a good ingredient for dog food. Chicken is about 80 percent protein and it’s a good font of vitamin B6 and phosphorus, niacin, selenium and glucosamine. It adds flavor to the diet.

Chicken meal is the condensed version of chicken. So it contains more protein than chicken. It also represents a natural source of glucosamine and chondroitin.

Corn gluten meal compared to meat is an inferior grain-based protein lower in some of the essential amino acids your dog needs. It is a by-product of corn processing which includes corn proteins. Glutens can elevate the protein reported on a food label. So, manufacturers commonly add them to a recipe to make a product look better.

Carbohydrates: Corn and wheat are low-priced and controversial cereals grains of only modest nutritional value to a dog. They are regularly linked with dietary intolerance in dogs which makes it a highly controversial ingredient.

Brewers rice is a cereal grain by-product consisting of the small fragments left over after processing whole rice. This element is of only modest nutritional value to a dog. Used with control adds texture and structure to dog food.

Sorghum is a starchy cereal grain. It includes B vitamins and a few assorted minerals, but not large quantities of any element, although it does have a lot of omega-6 fatty acid. Sorghum is gluten free, thus it is recommended for dogs that are prone to food intolerance.

Fat and oil: Pork fat can add significant flavor to any dog food. And it can be high in linoleic acid, an omega-6 fatty acid essential for life.

Soybean oil may be associated to canine food allergies. However, soybean oil is free from soya proteins and therefore rarely upset dogs with soya intolerance.
Soybean oil is a source of both omega-6 and omega-3 fatty acids to support many health systems (skin and coat, joint and cognitive).

Fiber: Dried beet pulp is employed in dog food as a dietary fiber supplement. Fiber helps to promote general digestive health in dogs. It helps to move fecal matter along in the intestines. It also acts as a pre-biotic to help good bacteria grow in the gut.

Flaxseed is a plant source of healthy fatty acids and it is rich in soluble fiber. It includes high levels of good quality dietary fiber, natural antioxidants, micronutrients and omega-3 fatty acids.

However, flaxseed is also an important source of phytoestrogens.These are plant-derived substances that imitate some of the effects of estrogen in the body. Some dog breeders have statement that feeding dogs foods that contain flaxseed or flaxseed oil has altered conception and gestation.

Oat Fiber is a concentrated source of dietary fiber. Oat fiber supports healthy digestion, improving stool quality. It is rich in some vitamins and minerals.

Fruits and vegetables: Dried peas are a good source of carbohydrates. Plus they’re naturally rich in dietary fiber. Some dogs cannot digest properly peas.

Dried fruits and vegetables add flavor and are good sources of vitamins, fiber, minerals and antioxidants. However they are not fresh fruits and some of their nutritional value is lost.

This food does not contain artificial flavors, dyes or artificial preservatives.

Mixed tocopherols are usually E vitamins. They are a natural preservative.

Chicken liver flavor is a good source of flavor.

Final Comment

Based on the ingredients included in Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food we give a 3.95 stars score.

Evaluating by its ingredients alone seems to be a recommended dry dog food.

Dog breeders should beware of flaxseed and soybean in the food. Some components of these ingredients (phytoestrogens) can interfere with reproduction.

Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food main benefits:

  • Real chicken ingredient
  • No chicken by-product meal
  • Omega-6 and Omega-3 fatty acids sources to improve skin and coat (soybean oil, flaxseeds)
  • Easy to digest for optimal nutrient absorption (dried beet pulp, oat fiber)

This food provides some good animal protein in the form of chicken. They also provide some plant-based protein with the whole grain. However, these ingredients are primarily carbohydrate sources. If your dog has no allergies or food intolerances, he can probably eat this food without any problems.

The following table is a summary of the positive and controversial/negative ingredients found during the qualitative analysis of this dog food.

Hill’s Science Diet Adult Advanced Fitness Original Dry Dog Food

Positive Aspects

  • Chicken, chicken meal
  • Pork fat
  • Whole grain sorghum
  • Oat fiber, flaxseed
  • Dried apples, dried broccoli, dried carrots, dried cranberries
  • Chicken liver flavor
  • Mixed tocopherols

Negative Aspects

  • Corn gluten meal
  • Soybean oil
  • Brewers rice, whole grain wheat, whole grain corn
  • Brewers rice, dried beet pulp
  • Dried peas


Available in 5 lb (2,27 Kg; 17.5 lb ( 7,94 Kg); 38.5 lb (17,46 Kg)


About the Author:

Hi! I'm Dora Mancha, DVM. I am graduated for the Veterinary Medicine Faculty of Lisbon (2009). My degree is recognized by the American Veterinary Medical Association (AVMA). I completed my degree in Veterinary Medicine in July, 2009. Over the first years as a veterinarian my work was closely related to the animal health field. I have gained some average experience having worked in Barcelona University (UAB) Equine Hospital and by working with veterinarians in Portugal. In addition, in 2009 - 2010 I was in Madrid at the University Alfonso X el Sábio doing an internship in the equine service. I am also very interested in small animal medicine and surgery. In fact I worked in several small animals clinics in Portugal improving my knowledge about small animal behavior and health. Dogs always have been present in my life, since I was a child. At the present moment I have four dogs a Labrador, a Epagnheul Breton, a Whippet and a mixed breed dog.

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