Hi Zanes Mom! I live in Central Florida and have a Great Dane. He is 8.5 years old and 145 lbs. He gets walks in the early morning and evening and lays around and sleeps the rest of the time. I am currently feeding half kibble (Brother*s Complete) and half raw. I have fed him some high fat raw for a month or two and his weight kept consistent. He seems to put on weight if eating a high carb food not high fat. He maintains weight well on low carb foods. I am personally not worried about fat content unless it is absurdly high. I would look at some low carb kibbles for more variety. Earthborn Holistic Primitive Natural is one I can think of off the top of my head. Max also liked Annamaet Grain-Free and Petcurean’s Go! Fit and Free.
