The milk and eggs add high biologic value protein (complete amino acid profile in each food) to your vegetarian diet. One nutritional problem of long-distance runners is increased gastrointestinal losses of iron. This loss would be greater with a diet not containing red meats and/or if you were a menstruating female. Another reason for you to regularly analyze your diet.
I am a long-distance runner (55+ miles per week / 150 pounds) and follow a low-dairy lacto-ovo vegetarian diet. I usually feel great all the time, but I would like to do an analysis of my diet to make sure that I am eating properly, especially for the needs of a runner. Do you have any advice for me?