According to PetsumerReport.com, NutriSource's dry food contains Sodium Selenite, a "potential risk form of selenium."
Actually, that is not exactly correct in the case of the grain free diets that I recommended. I cannot say for their base line foods as we do not use them or recommend them as they contain grain. However, the grain free products that we know very well and do recommend, contain selenium yeast which preliminary studies using placebos and double blind tests show promising results for fighting cancer.
Sodium selenite was a big product in 70's dog food and there is very good chance nutrisource as well as most other dog food companies used it. It is still used in human foods.
For any who have an interest in the actual ingredients, I have added them here for the products we use:
Chicken grain free:
Chicken, chicken meal, peas, pea starch, pea flour, chicken fat (preserved with mixed tocopherols and citric acid), natural flavors, salmon meal (a source of fish oil), tomato pomace, dried egg product, potassium chloride, sunflower oil, brewers yeast, salt, minerals (zinc proteinate, iron proteinate, copper proteinate, manganese proteinate, cobalt proteinate, selenium yeast), yeast culture (saccharomyces cerevisiae, enterococcus faecium, lactobacillus acidophilus, aspergillus niger, bacillus subtillis), taurine, vitamins (vitamin A acetate, vitamin D3 supplement, vitamin E supplement, niacin, d-calcium pantothenate, thiamine mononitrate, pyridoxine hydrochloride, riboflavin supplement, folic acid, biotin, vitamin B12 supplement), glucosamine hydrochloride, ascorbic acid (vitamin C), choline chloride, chondroitin sulfate, yucca schidigera extract, calcium iodate, rosemary extract.
NutriSource? Grain Free Chicken dog food is formulated to meet the nutritional levels established by the Association of American Feed Control Officials (AAFCO) Dog Food Nutrient Profiles for all life stages.
Lamb grain free:
Lamb meal, peas, pea starch, pea flour, salmon meal (a source of fish oil), chicken fat (preserved with mixed tocopherols and citric acid), potatoes, tomato pomace, natural flavors, sunflower oil, potassium chloride, brewers yeast, salt, salmon oil, minerals (zinc proteinate, iron proteinate, copper proteinate, manganese proteinate, cobalt proteinate, selenium yeast), choline chloride, yeast culture (saccharomyces cerevisiae, enterococcus faecium, lactobacillus acidophilus, aspergillus niger, bacillus subtillis), taurine, vitamins (vitamin A acetate, vitamin D3 supplement, vitamin E supplement, niacin, d-calcium pantothenate, thiamine mononitrate, pyridoxine hydrochloride, riboflavin supplement, folic acid, biotin, vitamin B12 supplement), glucosamine hydrochloride, tryptophan, ascorbic acid (vitamin C), chondroitin sulfate, yucca schidigera extract, calcium iodate, rosemary extract.
NutriSource? Grain Free Lamb Large Breed dog food is formulated to meet the nutritional levels established by the Association of American Feed Control Officials (AAFCO) Dog Food Nutrient Profiles for all life stages.
Salmon product:
Ingredients:
Salmon, salmon meal (a source of salmon oil), peas, sweet potato, pea flour, pea starch, sunflower oil, alfalfa, flax seed, dicalcium phosphate, potassium chloride, tomato pomace, salt, calcium carbonate, cranberries, minerals (zinc proteinate, iron proteinate, copper proteinate, manganese proteinate, cobalt proteinate, selenium yeast), choline chloride, blueberries, pea fiber, glucosamine hydrochloride, turmeric, taurine, chicory extract, lecithin, vitamins (vitamin A acetate, vitamin D3 supplement, vitamin E supplement, niacin, d-calcium pantothenate, thiamine mononitrate, pyridoxine hydrochloride, riboflavin supplement, folic acid, biotin, vitamin B12 supplement), L-tryptophan, garlic, ascorbic acid (source of vitamin C), chondroitin sulfate, yucca schidigera extract, L-carnitine, calcium iodate, rosemary extract, yeast culture (Saccharomyces cerevisiae), dried Lactobacillus acidophilus fermentation product, dried Enterococcus faecium fermentation product, dried Aspergillus niger fermentation product, dried Bacillus subtillis fermentation product.
Pure VitaTM Grain Free Salmon Formula dog food is formulated to meet the nutritional levels established by the Association of American Feed Control Officials (AAFCO) Dog Food Nutrient
The product is also ethoxoquin free according to their head chemist who wrote me personally.
For those of you interested in selenium yeast:
Selenium yeast, produced by fermenting Saccharomyces cerevisiae in a selenium-rich media, is a recognized source of organic food-form selenium.[1] In this process, virtually all of the selenium structurally substitutes for sulfur in the amino acid methionine thus forming selenomethionine via the same pathways and enzymes that are used to form sulfur-containing methionine. Owing to its similarity to S-containing methionine, selenomethionine is taken up nonspecifically and becomes part of yeast protein. It is this metabolic route that makes selenium yeast valuable in animal and human nutrition, since it offers the same organic form of selenium produced by food-chain autotrophs (i.e., most plants and certain blue-green algae).[2][3]