I like this idea and want to see it implemented. I think different food should have different bonuses because eating the same things everyday is not healthy, just look at the book Super Size Me. I think if you eat the same meal every day, you should be getting negatives. After all, who wants to eat steak and potatoes every day for every meal. This would lead to an early death and a very unhealthy life. I think if you are sick then chicken noodle soup should help you get better and having hot cocoa on a cold night should get you a bonus to being warm or something like it. These would make cooking more enjoyable and give people a reason to try different recipes in the game and make it more realistic. If you are going to make this type of game, then make it realistic. Even Skyrim has a relatively good cooking system when you add the mods to it to make it better.