Depending on which zones your were in (or how much weight lifted) post workout recommend goes how many carbs, sugar or protein you now need. Considering each heart rate zone usually correlates to what energy store is being used (zone 4+ - glucose, zone 2 - fat etc (I think)) it shouldn't be too hard. It would help the average person see exactly what your body needs for proper recovery.

And the same could be applied to strength training depending on how much weight has been lifted and what zones you were in..