Even if you eat only a small amount you should eat before exercise.
This way your body will have a source of carbohydrate for fuel.
You should have easily digestable foods such as fruit and yoghurt.
Lose Weight Today, The Easy Weight Loss Programme
The average person loses about 10 cups of fluid a day. If you're
exercising you're losing even
more. In addition to the 8 to 10 glasses recommended for normal
day-to-day activity, drink at least one extra cup of juice or water
for every 20 minutes you exercise.
Paralumun New Age Village