I'm not especially fond of the game's dynamic build setup and think it could use some tweaks. My character, far as I can tell, is eating enough to depopulate whole species of prey from the ecosystem while still wasting away enough to make me think my clones come with a serving of complementary tapeworms. I like the idea of the system in that it encourages actually getting food/drink more often than you might otherwise (and thereby interact with the players who've picked up cusine), but the numbers and the infrequency with which your build updates has a detrimental effect IMO. I'm not inclined to pick up player-made food from the trade network, getting the IDs individually and taking them out of separate boxes, when I'm going to be eating 5-10 items on a daily basis.
I think the system could be improved in a couple ways:
1) Move build into a customize option, either just flat-out or setting a 'target' build you'll weight to more heavily.
2) Offer some information in terms of how calorie-dense individual food items are, your average usage on a month-to-month basis according to your activity, and possibly lower the baseline metabolism a teeny bit.
3) Have build processing occur a little more frequently than once a week.
All of this is just my own experience, though, so I'm interested in seeing how other people have found the system. Is it fine? Is it a nuisance? Have you noticed it at all?