Rich source of the b-complex vitamins, protein, and minerals, particularly chromium. Supplies all the essential amino acids and chromium for a pets diet. Used as an aid to good health and development in pets of all ages. 100% natural source of high quality vitamins. Natural source of all the essential amino acids. Size is 20 Pound. Dimensions are 0.83 X 0.83 X 0.83 Brewers Yeast Powder Natural Source Amino Acids And Minerals. UPC Code = 694244901072