Most dogs can benefit from the addition of a multi-vitamin supplement to their daily diets. All Excel vitamins contain essential vitamins, minerals and linoleic acid (for healthy coats). They also contain added nutrients specific to your dog’s life stage. All tablets are liver-flavored chewables and may be fed directly or crumbled and added to food. Excel Vitamin Biscuits are a crunchy treat. Choose the puppy formula for dogs up to one year; Pernival Excel for adult dogs and Pernival Excel Senior for senior dogs.