Why is the amount of starch in food important?

ANSWER

The answer depends on why you are asking.

It is important because if you put in too much it will be too stiff and the starch will be overpowering. (Imagine choclate pudding with too much corn starch - it won't have that nice mouth feel, it will be too solid and the flavor won't come through as clearly.) The consistency will be greatly affected depending on how much or how little you use, and also the flavor.

Starch is carbohydrates and calories. A cup of flour is 400 calories, so 2 Tablespoons would be 50 calories . . . I think. The more flour you use to thicken something, the more calories and carbohydrates. That affects the nutrition. And generally the more flour, the more oil which also greatly affects the nutrition.