Even if a person is exercising a lot they shouldn't just eat everything unhealthy. Eating bad food no matter how much you exercise isn't healthy. And people should eat healthy. I'm assuming you're asking this as "if i run/play a sport does it matter what i eat since I'm going to burn all of the calories off anyways" kind of question.
This can range greatly from athlete to athlete. Many athletes maintain a 40/40/20 diet research that on a bodybuilding of nutrition site for more information.
== == stronger Samosa and lots of bread
I think the athlete needs a healthy diet
The Dietary needs for a lions is usually Zebra, Giraffe, Buffalo, Wildebeest, Gazelles, and Impalas.
Meat
100000mg.
crickets
penis
kibble
Do you have any specific dietary needs or restrictions we should know about?
food and water
Food.