Why are you buying food? Or potions? When I first started playing, I picked up all the food I found, figuring it might be important or useful- it never was. Foods, cooked or not, are practically useless. Everyone gets the self-heal spell whether you're a mage or not, and even if you never put a point into magicka or restoration, it's still miles better for healing yourself than any foods. And it doesn't weigh you down, either. I can see having to buy some health potions if you are 2H melee, but anything else I play, I end up selling scads of unneeded potions, or stockpiling dozens of them in a cupboard in my home (never to be touched again). Sounds like you need to rethink your money management skills.
Are you serious? Some of us do something called "role playing", which means our characters need to eat and, unless they're morally comfortable with it, simply snagging it all from barrels and the like would be stealing. And if you stop to think about it for a minute, not only does that mean we have to balance the extra weight, but it requires significant money management skills.
Just because the game allows you to never eat or sleep, to carry exorbitant amounts of bulky loot, and rather easily create uber-powered characters, doesn't mean a role-player has poor skills for choosing to restrict those gameplay allowances.