My pizza dough recipe calls for 10 oz warm water, 1 teaspoon of sugar, one tablespoon of yeast, one teaspoon of salt, 2 cups whole wheat and 1.5 cups white flour. I don't worry too much about the 1 teaspoon of sugar, it gets added at the beginning to get the yeast going, I think because pizza dough is only let to rise one hour, once, rather than the 2 proofs you'd do for bread.