Food and meals

Burgers, pizzas, chicken wings.
Tacos, French fries, onion rings.
Ice cream, donuts, cookies, cakes.
Soda, chips, and chocolate shakes.
These are things I like to munch,
breakfast, dinner, snack and lunch.

Every meal I eat includes
more, and more, and more fast foods.
Yet with every meal I eat
I grow slower on my feet.
This is why I want to know
why does fast food make me slow?