In my own training, I have been working on keeping my nutrition much more focused for physique purposes. The main source I consult on this is Vince Gironda.
Last year I put on a little too much fat on the waistline in my gaining season. I'm on the tall side with thinner limbs, so I thought it would be OK to go sloppy with "dirty bulking" including pizza and burgers a few times a week just for the sake of putting on weight and getting stronger faster. Not a great idea!
For the last few months, I have stuck strictly to a meal plan based on Gironda's fat-burning diets; extreme low-carb on most days, with a carb-up meal every three to four days. And I have gotten great results from this. Old-school methods really work! For the next month or so I am going with something closer to Gironda's "maintenance diet."