Healthy Diet

[Mannequin]

So, I am a serious athlete and I run 40+ miles a week on top of 15,000-20,000 yds. of swimming. I have been eating a lot of ice cream and junk food for most of my life. I do eat a great deal of healthy foods aka vegetables, grains, fruit--etc. After thinking, I've decided to give up all junk food, saturated fat, bad oils--etc. The problem is that I have a LOT of trouble keeping my weight up with all the excercise I do. It has been nearly impossible for me to have a healthy diet and not lose weight. Could anyone that has sufficient knowledge in nutrition help me/ outline a good eating plan?

What I need::

Carbs (50% of diet)
Protein
Fruit
Vegetables
AND a little dairy (my body doesn't handle it too well)

ORRR

if you could list high calorie HEALTHY foods here, kthnks.

[tom223]

grits = good amount of carbs thats what i have been eating on high carb days
protein = i usually just get a large portion of my protein from supplements which i would really suggest doing considering you'll have to eat 6-7 Large eggs to get the protein in what i get in 1 scoop of what I'm using (50g)
not going to really tell you much else because you follow a very diferent routine than someone who is lifting and trying to gain a serious amount of weight, and well.... I'm not a dietitian