Definitely! The most noticable impact for me is after a long run (2.5-3hrs.). I am generally not hungry after it but force some good stuff into the stomach. Usually about 3-4 hrs. later if I eat a good meal the regular pains and discomfort of the run almost vanish. What I find work best are veggies, w soya prod. for me.

Here are some web sites that explain things a little:
http://www.findarticles.com/p/articles/mi_m0NHF/is_12_19/ai_86708370

http://www.ultracycling.com/training/recovery_ld_cyclists_part1.html

http://www.vegparadise.com/athlete1.html

There many things on the web that explain what is good and works best. Talking w other triathletes I also find that certain foods work better than others for different people. You should experiment and see what works best for you. Here is a good food list that might help w recovery and general eating:

http://www.beachbody.com/jump.jsp?itemID=122&itemType=CATEGORY&path=1,2,21

I am sure, that certain food recovers faster than others. I testet some food so I now how much I have to eat bevor run, so that i don´t get a bonk. And it is the same after the run for recovery.

Haha thats awesome. I usually use Chocolate milk, or plain, non-fat yogury topped with a few tablespoonds of honey.