Lean proteins, good fats, whole grains, veggies, fruits, water. One thing you do not want to do is skimp out on calories while training for a half marathon. If you do, you might find yourself gain weight instead of losing it. The body will try and conserve as much as it can if it thinks you're starving it.
I would find out for your height and weight what your daily intake should be like, and then maybe go 100-200 below it but no more.
These are some examples of foods:
- Boneless, skinless chicken breasts - grilled, baked or pan fried.
- Lean ground beef - 93/7 or better.
- Lean pork cuts.
- Turkey breast.
- Veggies - I really like Green Giants steam packs - especially the immunity blend. These are super quick and delicious. Pretty much any veggies though.
- Fruits - oranges, bananas, apples. These three probably have the most benefit.
- Whole wheat bread.
- Whole wheat / whole grain pasta (be very careful here, make sure it comes from a whole grain and not enriched wheat... manufacturers are sneaky here).
- Eggs
- 1% Milk
- OJ - no sugar added and some/lots of pulp.
- Life cereal, oatmeal, oatmeal squares.
- Olive oil for cooking!
- Raw nuts - peanuts, cashews, almonds, walnuts, pistachios.
- Popcorn, 94% FF.
- All-natural peanut butter (no oils added, no sugar added).
- Legumes - black beans, kidney beans, etc.
There is more, but I could sit on here all day making a comprehensive list. Bottom line, make smart decisions about what you buy and it will pay off.
GL!