Do licking envelopes have calories? Uncovering the Truth
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4 min read
According to the U.S. Food and Drug Administration, the adhesive on a U.S. envelope contains around 1.7 calories per gram, which equates to about one-tenth of a calorie per lick. This fact confirms that yes, licking envelopes have calories, but the amount is so minuscule it has no impact on your diet.
