When a pet food manufacturer adds chemically synthesized vitamins and minerals to its formulas, it is an admission that the food ingredients alone are inadequate to supply the nutritional needs of a dog or cat. The National Research Council states that chemically synthesized mineral and vitamin supplements are provided frequently to correct the deficiencies in the ingredients used in animal diets.
Here are a few quotes from the 2006 AAFCO Official Publication and also from some publications by The National Research Council (NRC). The NRC publications and studies are some of the research used by AAFCO to determine nutrient requirements for pet food. These statements about the use of synthetic vitamins and minerals should be of concern to all pet owners. AAFCO and NRC have done a good job in showing both concern and exposing this information. It is all available to the public; not just industry.
“Knowledge of nutrient requirements and toxicities (of synthetic mineral supplements) is incomplete and/or imprecise in many cases.” (AAFCO, 2006)
“The Committee considered the matter of contaminants in mineral feed ingredients for several years before adopting an approach to the problem as reported in the 1978 Official (AAFCO) Publication.” (Official Guidelines for Contaminant Levels Permitted in Mineral Feed Supplements, AAFCO 2006)
“The current scientific literature, however, is not complete enough to support the estimation of maximum tolerable levels for any (synthetic) vitamin. In most cases, however, one can use the literature to estimate ranges of vitamin intake that can be presumed to be safe.” (NRC Vitamin Tolerance of Animals)
“The available information for most of the (synthetic mineral) elements is less than desired, and it is likely that these tolerance levels will need to be modified.Problems that may arise when two or more elements are present at high levels represent a virtually unexplored area.” (NRC Mineral Tolerance of Domestic Animals)
In the past there have been FDA recalls of zinc oxide due to high levels of dioxin, a chemically synthesized form of zinc supplement commonly used in pet foods. There have been recalls of pet foods that caused illness and death in pets from excessive amounts of chemically synthesized vitamin D, iron and copper.. Click here to see research and results of animal testing of synthetic vitamins and minerals).
Nature’s Logic launched its products in late March 2006 and chose not to use any added chemically synthesized vitamins or minerals. Nature’s Logic chose to design foods, treats, and supplements made of 100% whole foods from which all nutrients are safely derived without the addition of potentially toxic synthetic forms. Below is a sample ingredient food panel of a Nature’s Logic canned food that uses 100% whole foods and natural ingredients and no added chemically synthesized vitamins, minerals, or amino acids.
INGREDIENTS: Chicken, Chicken Broth, Chicken Liver, Chicken Heart, Dried Egg Product, Porcine Plasma, Montmorillonite Clay, Herring Oil (Preserved with Mixed Tocopherols), Brewers Dried Yeast, Dried Apple, Dried Apricot, Alfalfa Meal, Dried Artichoke, Dried Blueberry, Dried Broccoli, Dried Carrot, Dried Chicory Root, Dried Cranberry, Dried Kelp, Dried Parsley, Dried Pumpkin, Dried Rosemary, Dried Spinach, Dried Tomato, Egg Shell Meal, Rosemary Extract.