pretty straightforward, get the "A Balanced Diet" advancement. you have to eat these foods: (maybe not the chorus fruit or notch apple) Apple, Baked Potato, Beetroot, Beetroot Soup, Bread, Carrot, Chorus Fruit, Cooked Chicken, Cooked Cod, Cooked Mutton, Cooked Porkchop, Cooked Rabbit, Cooked Salmon, Cookie, Dried Kelp, Enchanted Golden Apple, Golden Apple, Golden Carrot, Honey Bottle, Melon Slice, Mushroom Stew, Poisonous Potato, Potato, Pufferfish, Pumpkin Pie, Rabbit Stew, Raw Beef, Raw Chicken, Raw Cod, Raw Mutton, Raw Porkchop, Raw Rabbit, Raw Salmon, Rotten Flesh, Spider Eye, Steak, Suspicious Stew, Sweet Berries, Tropical Fish.

Already been suggested, already being debated whether to add it or not. The thing about it is that the category could be reeeeeeeeeally short if it weren't for the fact that you need chorus fruit

so more than half the run is just getting a single food

firstly, maybe join the discord to suggest categories xD secondly, idk its kind of pointless to add random, rng based advancements, then we are gonna have a bunch of advancements that are to rng based. If you like running advancements aa might be good for you :)