Revision 251 says this:
It uses your calculated "meat per adventure" to find the most profitable spleen items to fill your spleen.
I had a function which would calculate a (maybe) optimal usage of food, based on vcon, to fill a given amount of fullness.
Generalize to work for food, drink, spleen.
After you have gotten all the Sweet Synthesis/Numberology you need, fill the rest of your spleen with profitable adventure-producing spleen items.
If your meat per adventure is low, nothing may be "profitable"
We won't fill spleen in that case, since it would be a net loss.