Canidae(not sure if grainless) and TOTW(I know is grainless) are both for all life stages. I had my 3 1/2 year old on Canidae when he was 5 1/2 mos old, and he did great on it. I know with all my little ones, I have also switched them from puppy to adult food as soon as they've quit growing(around 6 mos)when they've been on food other than all life stages |