Although there is no direct integration available with MyFitnessPal currently, there is a very easy workaround available. The easiest way to use MyFitnessPal is to install and use one of the Under Armour apps (MapMyRun, MapMyRide or MapMyWalk) and connect this with both sodisp and MyFitnessPal.
See this FAQ from Under Armour on how to connect MapMy with MyFitnessPal.
You can then connect Under Armour with your sodisp profile so all your activities are synced automatically from MyFitnessPal!