Brewer's Yeast and Garlic is an excellent natural source of B-complex vitamins and protein. Low in fat and fortified with B-1, B-2, niacin and antioxidants. Guaranteed Analysis Crude Protein - 40% Crude Fat - 0.1% Crude Fiber - 5% Moisture - 6.2% *Ascorbic acid (Vitamin C) - 600 mcg/tsp Thiamine (B-1) - 600 mcg/tsp Riboflavin (B-2) - 900 mcg/tsp Niacin (B-3) - 2400 mcg/tsp * Not recognized as an essential nutrient by the AAFCO Dog and cat Nutrient Profiles. Ingredients : Brewer's Dried yeast Powder, Garlic, Dried Whey, Magnesium Stearate, Silica Aerogel, Niacin, Riboflavin, Thiamine Monoitrate, Calcium Ascorbate (source of Vitamin C). Stearic Acid, and Natural Flavoring. Recommended Usage: Dog and Cats up to 10 lbs. 1/2 teaspoon 11 to 20 lbs. - 1 teaspoon 21 to 30 lbs - 1.5 teaspoons 31 lbs and over - 1 teaspoon per 25 lbs During stress, convalescing, pregnancy or in summer months, double the daily amount.