We do not like seeing Sorghum, corn gluten meal, 2 types of yeast, salt and especially Menadione sodium bisulfite complex in a dogs diet. Their website states that Zach's is beef meal based nutrition for adult dogs requiring more protein, however, we believe that this is a relatively low grade dog food.
Zach's Regular Formula & 27/15 Ingredient Analysis

  1. Beef http://dogfoodchat.com/wp-content/uploads/2011/01/zachs-premium-puppy-chicken-and-rice.jpg meal
  2. Ground rice
  3. Sorghum
  4. Chicken fat
  5. Corn gluten meal
Beef meal is a decent meat for dogs.

Ground rice is the middle of the road grain.

Sorghum is a low quality grain and has no nutrient value, mainly filler.

Chicken fat, dogs need a fat in their diet and this is a good fat for dogs.

Corn gluten meal is terrible for dogs and has been linked to skin, coat, eye and ear issues in some dogs.



Zach's Regular Formula & 27/15 Ingredient List

Beef meal, Ground Rice, Sorghum, Chicken Fat (Preserved with Mixed Tocopherols, Citric acid), Corn Gluten Meal, Fish Meal, Flaxseed, Dried Egg Product, Brewers Dried Yeast, Chicken Liver Meal, Yeast Culture, Potassium Chloride, Salt, Lecithin, Garlic, Vitamin A Supplement, Chlorine Chloride, Vitamin E Supplement, Ferrous Sulfate, Dried Aspergillus Oryzae Fermentation Extract, Zinc Oxide, Manganese Oxide, Copper Sulfate, Zinc Amino Acid Dhelate, Iron Amino Acid Chelate, Manganese Amino Acid Chelate, Cobalt Amino Acid Chelate, Potassium lodate, Niacin, Calcium Pantothenate, Riboflavin, Biotin, Vitamin B 12 Supplement, Thiamine Mononitrate, Pyridoxine Hydrochloride (Vitamin B6), Sodium Selenite, Menadione Sodium Bisulfite Complex (Source of Vitamin K). Calcium Iodate, Folic Acid, Cobalt Carbonate, Yucca Schidigera Extract, Rosemary Extract.

Zach's Regular Formula & 27/15 Guaranteed Analysis

Guaranteed Analysis describes the nutrient content required by AAFCO labeling standards to be identified on every product package. Since these are guarantees, pet food manufacturers work to formulate diets that meet or exceed the minimum requirements.

Crude Protein, min – 27%
Crude Fiber, max – 3.5%
*Omega-6 Fatty acid, min – 2.2%
Crude Fat, min – 10% (15% in Zach's 27/15)
Moisture, max – 10%
*Omega-3 Fatty acid, min – 3%
*Not Recognized as essential by the AAFCO Dog Nutrient Profile.

.
Protein (minimum)……………….25.0 %
Fat (minimum)…………………….14.0 %
Moisture (maximum)…………….10.0 %
Fibre (maximum)…………………...4.0 %
Ash (maximum) …………………....7.0 %
Calcium ……………………………..1.7 %
Phosphorous ………………………1.0 %
Calcium / Phosphorous ratio ….1.7: 1.0
KCal As Fed....540 (155grams/8oz cup