Food question again SORRY

I have one, only one complaint or rather concern amount of food required to keep weight on. (Really I have a couple of trialling concerns but the light at the end of the tunnel is still shining training wise LOL).

Yank does everything at a million miles per hour training wise. Naturally he uses a lot of calories. BTW, he is great in the house and in his kennel run at night, no pacing.

He is nearly 2 years of age. He is fed a diet of raw meaty bones and 7 cups of Eagle Pack Power per day. Vet checks have him, fit as a fiddle.

Does anyone else need to feed so much dry food to their dogs????????