Let's throw our heads together, since all that is stopping future updates is the gluttony system. (& devs are not keeping us up to date)
I always had another system in mind, while it gives an opportunity for newbs to catch up & sell, it will also give the strong people a grind.
I'm bad with words, so i hope you get a clue.
Lets say, numbers are quality &/or multiplier, there could be a cap, there could be none.
Food can be 'upgraded' with a special cooking set or w/e
1 + 1 = 2 (you would need 2 pieces of 1x multiplier to make a stronger food
2 + 2 = 3 (or 4 x 1)
3 + 3 = 4 (or 2+2+2+2, or 16x1)
4 + 4 = 5 (or 32 x 1)
...