as far as I know some athletics can't be taking too much carbo due
to their sporting nature.
wait.. how come using SAF mealboxes ar?
That's where you are wrong, athletes take lots of carbo
during competition, during Olympic Games 2008, Michael Phelps took
lots of carbo for his meals. 
As US swimming sensation Michael Phelps sets his sights
on more gold medal wins at the Beijing Olympics this weekend, the
BBC's Michael Hirst examines the part an extraordinary diet has
played in the sportsman's remarkable success.
If it is true that you are what you eat, then here is the
suggested intake if you want to become history's most successful
Olympian:
For breakfast: three fried egg sandwiches, with cheese,
tomatoes, lettuce, fried onions and mayonnaise, followed by three
chocolate-chip pancakes; a five-egg omelette; three sugar-coated
slices of French toast and a bowl of grits (a maize-based
porridge), washed down with two cups of coffee.
For lunch: half a kilogram (one pound) of enriched pasta; two
large ham and cheese sandwiches on white bread smothered with
mayonnaise, washed down by energy drinks.
For dinner: Another half-kilogram of pasta, perhaps with a
carbonara sauce, followed by a large pizza and more energy
drinks.
That combination may not sound very healthy, and at a
staggering 10,000 calories, would feed five average men for a
day.
http://news.bbc.co.uk/2/hi/asia-pacific/7562840.stm
