Actually the answer can be found in colour theory
For example, if you mix using paints of some of our common
foods
i.e. Greens (eg Vege), Yellows (eg Noodles), Reds(eg Chilli),
Oranges (eg Oranges), Browns (eg. Chocolate), White (kway
teow)
we do end up with some kind of generic brown
Of course, if we eat more blue and black stuff... (olives,
blueberries, dark coloured grapes)... sometimes we end up with ..
darker coloured sai
But most of the time, the amount of black/blue colours we consume
are in very small quantity, so doesn't affect the final colour
eventually.
You can experiment really. Maybe for one or two days, you just eat
green colour stuff. And see if ur sai turns green...
