This mod increases the duration of the "Good Meal", "Great Meal", and "Excellent Meal" buffs from the default 8 hour duration of AwesomeMod's "MotivePerkRebalance" option to either a 24- or 36-hour duration depending on which package file you install.
Actually, it's not a feature of AwesomeMod to set the duration, the duration is set by EAxis, AwesomeMod doesn't touch the meal buff.
You should generally install this mod only if you have already taken (or plan to take ASAP) the "Hardly Hungry" lifetime reward on the Sims that you actively play most often. Nothing bad happens if you don't have Hardly Hungry on a Sim; the net result is an uber permabuff for the meal buffs on every Sim that doesn't have Hardly Hungry.
I can look into setting it so that the meal buff actually DOES vary proportionately if you have this trait...
A weakness in both the EAxis default game code and in AwesomeMod's current "MotivePerkRebalance" option is that the default duration for the meal buffs is not dynamically increased at all when you take the "Hardly Hungry" lifetime reward.
I'll look into it.