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A rating based on ingredients lisst are baised because the authors always have a bias against certain ingredient common in so called supermarket brand when infact these so so called "boogie man ingredients" are often superior to the counterpart use in superpremium brands.I will agree with you.. check out this Dog Food Reviews - Main Index - Powered by ReviewPost
Hills and IAMS like all grocery store brands rate 1 star.. Diamond and their Kirkland brand, and Eukanuba rates 3 starts,, Origen, Wellness, and Blue Buffalo rate 6 stars
i.e. grain free foods use tapioka, or potatoes to provide the need starch to make kibble. These ingredients are actual nutrional inferior to grains like corn, wheat and rice. By products are general a better quality more digestable and superior protein source that muscle meat.
See [URL="http://www.wysong.net/index.php"] The Pet Food Ingredient Game
What Are The Most Healthy Grains, Legumes And Starches?
Critique Of Internet 'Rate Your Dog Food' ListSeparating various grains and legumes and then making claims about superiority is a marketing tactic and has little or nothing to do with good cat and dog nutrition
...If the nutritional value of the ingredients you mentioned are measured, the opposite of what you have been told is true:
The "Exotic Ingredients Mean Good Nutrition" Myth
Are By-Products Bad?
Corn and SoyFrom a nutritional as well as ethical standpoint, the benefits of incorporating by-products into pet foods cannot be denied.
The Whole Dog Journal advises pet owners to reject any by-products and instead seek “whole meats.” This demonstrates their lack of understanding of the nutritional merits of the various parts of food animals. Whole Dog and others in the pet food marketplace pushing the "no by-products" claim seem unaware of the fact that “by-product” is a mere word invention. It creates a negative connotation, but has nothing to do with health or nutrition. Pet health and nutrition are not about superficial impressions created by word labels. Feeding just muscle meats to pets is a serious error since no carnivore in the wild eats such a diet.
...For example, chicken viscera is not “human grade,” but carries more nutritional value than a clean white chicken breast. Americans think that chicken feet would not be fit for human consumption, but many far eastern countries relish them. On the other hand, “human grade” beef steaks fed to pets could cause serious nutritional imbalances and disease if fed exclusively. Pet foods that create the superficial perception of quality (no by-products, USDA, human grade, etc.) with the intent of getting pet owners to feed a particular food exclusively is not what pet health is about.
Corn and Soy[/url]
It should be noted that is virtually impossible to find any nutritional info on feeding dogs that is not biased. In the case of the articles provided the all come from one source that is also a manufacture of a super premium brand. They also have a bias which I have avoided in the quotes provided, and that bias is raw products are superior to cook products. While that may be true for some ingredient it is not true for all. And any studies sited by the company ast to the superiority of a "raw" diet are of poor quality and the result are in serious dispute as a result. Most of the so called benefits noted in the various studies can be accounted for by the lack of controls. The most famous being the cats feed raw sardines and milk, before it was known the requirement of cats, that is cat only not dog or humans for taurine, and estential fatty acid, which is destroyed by heat. Now all cats food cotain adequit levels of taurine but tht would not be the case in the study cited and this study because taurine is require in a cat diet but not a human nor a dog diet is not translateable. When doing any research on feeding dog food look for the bias first so then you can make reasonable evaluation of the content of the material.Aside from the natural nutrition whole corn and soy provide - essential fatty acids, vitamins, minerals, complex carbohydrates, fiber - they help permit the manufacture of a dry diet. The starch in grains gelatinizes around the meat ingredients shaping the nugget, changing starch to a digestible form, and permitting the meat to be dried into a shelf stable form. Whether corn is used for this purpose or any other grain such as wheat, rice, barley, potato, etc., makes little difference if diets are being rotated as they should be.
Don't be fooled by the various marketing campaigns to demonize certain grains (such as corn) in order to increase the sales of products that do not have the boogeyman ingredients. The pet food market place is highly competitive and it is common for companies to pander to myths about boogeyman ingredients in order to gain sales: "corn is evil; buy my product because it contains not corn." Also, do not assume that these ingredients will cause allergic or sensitivity reactions as commonly believed