Is powdered sugar a dietary alternative to granulated sugar?

Question

How does powdered sugar stack up to regular sugar and artificial sweeteners in terms of sugar/carbohydrate content?

Answer 1

Powdered sugar is, basically, just sugar, but with the grains ground to a fine dust.

To be very precise, powdered sugar sometimes contains an anti-caking agent like corn starch to prevent clumping but as far as nutritional values go, treat it like ordinary sugar.

So:
Powdered sugar is no sugar alternative because it is simply sugar.