Not a WW, but some things that I have done are:
1. Eat more protein, and if you are watching calories, try and add plant based protein (namely beans, leafy greens, nuts). Chicken and beef are also really good sources, but when you cook them be careful of how you season them (drowning them in bar-b-que does not make them healthy)
2. I eat larger portions at dinner, and I do add in more carbs. Whole wheat bread, oatmeal, and homemade granola that is full of high protein nuts.
3. Make sure you are getting enough water. Hydrating prior to a run is very important. :)
4. Snacks in my house are almost entirely fruits, veggies, and nuts.
Hope that helps!