PetGuard Multi-Vitamin & Multi-Mineral Dog Supplement is made especially for dogs who require additional vitamins and minerals. The nutrients have been derived from the most natural sources—starting with Acidophilus, Bee Pollen, Brewers Yeast and with essential vitamins and minerals, including Calcium and Zinc. The real liver in each tablet make these tablets easy to feed. Each vitamin is free of sugar, preservatives, artificial colors and artificial flavors. PetGuard was founded in 1979 as the first all-natural pet food company. PetGuard is family-owned and focused on bringing quality, natural products for your pets. Made in the USA.