It's obvious. That looks typically like a feature abandonned to release in time. There's still work to do to make an interresting hardcoe mode, so they prefered finishing something else. hardcoe mode isn't just eating, drinking and sleeping from time to time. That would be uninterresting. There must be another danger (similar to radiations in Fallout) to weight the food and drinks. That gives a purpose to every meal, some will replenish a lot but cause side problems, some will replenish a bit but without constraints, so you can choose the appropriate one for your situation and not just whatever fills me more.
Or it didn't work out, and they decided it didn't fit the game, like horse-combat -which was in and functional, then cut.
I love the soups in Skyrim. I'd have prefered a cap on the amount of food you could eat in a short while (Like Oblivion's 4-potion limit), with each food providing a number of in-game hour benefits to stamina, health, magicka, and regeneration.
To the RP croud, it's a nice addition. To the collector, it's something else to collect. To the min/maxers out there is a waste.
Not quite a waste to the Min-Maxers. Vegetable Soup is a Game-breaker

- 10 Real-life minutes of unlimited power attack and shield bash.