Just had Toby to the vet. He's 15 months now, and a big boy. He weighed in at 70.2 pounds. He is on the large size of medium, as far as doodles go, I'd say. Plus, he has fluffy black hair, so seeing his defined waistline isn't always easy.
That being said, the vet told me he was chunky! Toby eats 2 1/2, or at the most 2 3/4 cups of Nutram dog food per day. He gets almost no treats, and when he does, they are healthy treats. He runs and plays ball in the yard, has zoomies in the yard, and gets at least 2 walks a day. I'm certainly not going to cut his food down more - that's not much for a big dog. It's funny though - it's almost like the vet told me I was chunky - I was offended!