I do the cooking. We're both happy with this arrangement, DH does more than his share of other household chores.
From time to time DH will decide he needs to go on a health kick. He's not overweight but still wants to lose a few lbs. He'll ask me to give him smaller portions and ask me to give him no carbs. Often this is fine and I can just give him more meat and vegetables, but once or twice a week I might make a pasta dish and there really isn't a low carb option. I'd have to make him something else. I would do this except that every evening, without fail, he will snack on bread and butter, crackers or sweets. I bought a giant bag of fizzy gummy worms last week and he has eaten all of them over the course of a week. I'm not putting myself out making a special meal, even though cooking is my chore, for him to just eat loads of carbs anyway. He says at least he would be having fewer if he wasn't having them at dinner too. I just think it's a waste of time, eat proper dinners and stop eating loads of shit in the evening.