A bowl of butter mints is not an uncommon sight at weddings and on buffets. Known for their light pastel colors and silky-smooth texture, butter mints are low in calories if you limit yourself to one or two.
One butter mint provides seven calories and can last a few minutes as you savor it after a meal. Grab a handful of seven or eight butter mints, however, and you'll be eating more than 50 calories.
The calories in butter mint come from carbohydrates, which in turn, are derived from the sugar that butter mints are made of. Each butter mint has 2 g of carbohydrates and no protein, fat or fiber, although some homemade butter mints may contain butter, and thus fat. Butter mints are not a good source of vitamins and minerals.
While eating an occasional butter mint won't add too many extra calories to your daily intake, eating a handful on a regular basis will add too many refined carbohydrates to your diet. Refined carbohydrates, such as those in butter mints, can promote obesity, heart disease and diabetes, according to The Harvard School of Public Health.