The Blind Taste Test Isn't the Best Answer

In economics, deviating a little from an optimum almost never costs you very much. So if we can cut back on sugar, we're saving calories and we're saving costive ingredients. And so the optimum level of sweetness is not the one that wins the blind taste test. But when they tasted the product and it wasn't quite as sweet as they might have imagined it to be, they could realize there were other factors that should more than compensate for the little bit less sweetness.