Learning how to fight, acquiring techniques, hitting the equipment and honing those skills won't mean anything without the proper nutrition. You have to feed your engine if you want it to respond. This is where most athlete's fail. They won't have the energy to survive 5 round fights, etc.
 
Planning is important:  
Before your morning runs drink plenty of water. As a matter of fact you should be drinking plenty of water throughout the day. It keeps your joints lubricated and will help you fight dehydration. You should drink at least 2 glasses of water every hour minimum if not more.  
 
After your morning workout, you need to send some carbohydrates and protein to your muscles. The carbs will help with your energy and the protein will assist in building strong muscles and maintaining them. You must not skip this meal.
 
You should plan to eat "something" (healthy) every 2-3 hours throughout the day. Many people just don't eat enough properly and they don't space out there meals properly.
 
Example:
 
Before workout: 6:00am
2 glasses of water
 
after workout: 8:00am
2-4 hard boiled eggs
oatmeal
toast
water
 
10:00
Nutritious shake or power bar
or tuna sandwich, or peanut butter sandwich
water
 
12:00
rice (white or brown not fried)
chicken
salad
water
fruit
 
2:00pm
another shake or sandwich
water
 
4:00 pm 
fruit or shake
water
 
5:00pm
evening workout
 
7:00pm
dinner
vegetables, baked potato
spaghetti, rice, fish
these are just examples
water
 
9:00pm 
shake or fruit
water
 
Sleep (you need at least 6-8 hours of sleep every night). If you are not getting enough for your body to recuperate, take a short nap or a couple of short "power naps" throughout the day.
 
This is just stuff that you should be doing everyday if you are just training regularly.
We will talk more in the future about "fight nutrition" during the different phases of fight preparation.