Are these deadly ingredients for a puppy treat?

Wheat, Flour, Sunflower Oil, Sugar, Rice, Flour, Wheat Bran, Dried Skimmed Milk, Dried Milk, Water, Flavouring Dicalcium Phosphate, Flaxseed Oil, Brewers Dried Yeast, Salt, Ascorbic Acid, Zinc Chloride, BHA (a preservative), a-Tocopherol Acetate (Vitamin E), Vitamin A Acetate, Cholecalciferol (Vitamin D3), Sodium Selenate, Biotin