[Patricia A]

Natures Logic has a Distinction line with singular protein. Example below.
Ingredients
Sardine, Sardine Meal, Millet, Herring Oil (preserved with Mixed Tocopherols), Yeast Culture, Pumpkin Seeds, Montmorillonite Clay, Dried Kale, Dried Kelp, Spray Dried Porcine Plasma, Dried Tomato, Dried Chicory Root, Dried Apple, Dried Carrot, Dried Pumpkin, Dried Blueberry, Dried Apricot, Dried Spinach, Dried Broccoli, Dried Parsley, Dried Cranberry, Dried Artichoke, Dried Mushrooms, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Bifidobacterium bifidium Fermentation Product, Dried Enterococcus faecium Fermentation Product, Dried Bacillus coagulans Fermentation Product, Dried Pineapple Extract, Dried Aspergillus niger Fermentation Extract, Dried Aspergillus oryzae Fermentation Extract, Dried Trichoderma longibrachiatum Fermentation Extract.