WebMD: Why Kids Might Reject Sugar-Free Halloween Candy

Trick-or-treaters may not be so easily be tricked into loving sugar-free treats, thanks to taste buds hard-wired to seek calorie-containing sweets, a new study suggests.

Taste isn’t all about choosing peanut butter cups over jellybeans. Since earliest humanity, our sense of taste has helped us detect salty, sweet, sour, savory, and bitter so that we can choose foods high in energy and low in poisons.

But these new findings suggest that our taste buds have another hidden talent: identifying foods that don’t give us any energy at all.

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