The trial bag? I have no idea because I was trying two on it. The 2.2 lb bag lasts Toby over 6 weeks he is 5.3 lbs and eats 1/4 scoop am and pm. Total of 1/2 scoop (1 oz)a day. Which is way less than recommended, but he is a healthy weight and if I try to feed him more he gets a tummy ache.