SureMaybe not such a bad thing if this weight gain comes in the form of muscle.
But of course we need a healthy thyroid and insulin sensitive muscles for that to happen. lol.
weight gain =/= fat
Good metabolism and high activity will help ensure extra calories go to bulking muscle rather then getting fat. Bodybuilders eat large amounts of food for a reason. Although I'm unsure how this would work on a high calorie low carb diet. I think despite the high caloric consumption, low carb diets would lead to too much cortisol to see drastic body composition changes. Back in my low carb days Mark Sission was the man everyone followed. He's got a great physique, but he essentially got that before he was even a low carber. He hasn't had any gains since. A more recent and perhaps even better example would be Shawn Baker. The dude literally busts his **** off on workouts and he hasn't made any progress. Same dude before going carnivore just older. I think both high calorie and some carbohydrate is needed to build decent amounts of muscle.